

                           SECURITIES AND EXCHANGE COMMISSION
                                 Washington, D.C.  20549


                                        FORM 8-K


                     Current Report Pursuant To Section 13 or 15(d) of
                            the Securities Exchange Act of 1934

           Date of Report (Date of earliest event reported):  September 25, 2003


                             MORGAN STANLEY CAPITAL I INC.
                   (as Depositor, The Provident Bank as Servicer,
                    NC Capital Corporation, as Responsible Party
              and Deutsche Bank National Trust Company, as Trustee).


              MORGAN STANLEY DEAN WITTER CAPITAL I INC CERT SER 2003 NC4
                  (Exact name of Registrant as specified in its Charter)


                                         DELAWARE
                     (State or Other Jurisdiction of Incorporation)

               333-83986-19                        13-3291626
          (Commission File Number)        (I.R.S. Employer Identification No.)


           1585 BROADWAY, 2ND FLOOR
           NEW YORK, NEW YORK                             10036
          (Address of principal executive offices)     (Zip Code)


          Registrant's Telephone Number, Including Area Code:  (212) 761-4700



     Item 5.  Other Events

     Attached hereto is a copy of the Monthly Remittance Statements to the
     Certificateholders which was derived from the monthly information
     submitted by the Master Servicer of the Trust to the Trustee.


     Item 7.  Financial Statement and Exhibits

     Exhibits:  (as noted in Item 5 above)

     Monthly Remittance Statement to the Certificateholders dated as of
     September 25, 2003.



                                     SIGNATURE


               Pursuant to the requirements of the Securities Exchange Act of
          1934, the Registrant has duly caused this report to be signed on its
          behalf by the undersigned, hereunto duly authorized.


                                  Deutsche Bank National Trust Company,
                                  not in its individual capacity, but solely
                                  as a duly authorized agent of the Registrant
                                  pursuant to the Pooling and Servicing
                                  Agreement, dated as of April 1,2003.

          Date:  Oct 01, 2003               By:  /s/  Katherine M. Wannenmacher
                                            Katherine M. Wannenmacher
                                            Vice President

                                   EXHIBIT INDEX

          DOCUMENT

          Monthly Remittance Statement to the Certificateholders
          dated as of September 25, 2003.


	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates


	September 25, 2003 Distribution


	Contents



			TABLE OF CONTENTS

								Page

			1.	Contents				1
			2.	Certificate Payment Report				2
			3.	Collection Account Report				4
			4.	Credit Enhancement Report				7
			5.	Collateral Report				8
			6.	Delinquency Report				11
			7.	REO Report				14
			8.	Foreclosure Report				15
			9.	Prepayment Report				16
			10.	Prepayment Detail Report				19
			11.	Realized Loss Report				21
			12.	Realized Loss Detail Report				24
			13.	Triggers, Adj. Rate Cert. and Miscellaneous Report				25




				Total Number of Pages				25



			CONTACTS

				Administrator: Jeremy Conyers
				Direct Phone Number: (714)247-6274
				Address: Deutsche Bank
				1761 E. St. Andrew Place, Santa Ana, CA 92705

				Web Site: https://www.corporatetrust.db.com/invr
				Factor Information: (800) 735-7777
				Main Phone Number: (714) 247-6000



ISSUANCE INFORMATION

	Seller:		Morgan Stanley					Cut-Off Date: April 1, 2003
	Certificate Insurer(s):							Closing Date: April 29, 2003
								First Payment Date: May 25, 2003
	Servicer(s):		Provident Bank Master Servicer


								Distribution Date: September 25, 2003
	Underwriter(s):		Morgan Stanley & Co. Inc					Record Date: September 24, 2003
								August 29, 2003






						Page 1 of 25					© COPYRIGHT 2003 Deutsche Bank
	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates
	REMIC II Series 2003-NC4
	Certificate Payment Report for September 25, 2003 Distribution


	Distribution in Dollars - Current Period
					Prior						Current
	Class	Original			Principal			Total	Realized	Deferred	Principal
Class	Type	Face Value			Balance	Interest	Principal	Distribution	Losses	Interest	Balance
					(1)	(2)	(3)	(4)=(2)+(3)	(5)	(6)	(7)=(1)-(3)-(5)+(6)

A-1	FLT, STEP	384,805,000.00			366,044,303.36	501,175.66	7,743,611.12	8,244,786.78	-	-	358,300,692.25
A-2	FLT, STEP	131,500,000.00			122,044,077.98	155,538.40	3,621,635.68	3,777,174.08	-	-	118,422,442.30
A-3	FLT, STEP	63,831,000.00			56,364,704.64	63,582.52	2,859,604.98	2,923,187.50	-	-	53,505,099.67
A-4	FLT, STEP	40,000,000.00			40,000,000.00	55,455.56	-	55,455.56	-	-	40,000,000.00
M-1	MEZ, FLT,ST	40,838,000.00			40,838,000.00	69,628.79	-	69,628.79	-	-	40,838,000.00
M-2	MEZ, FLT,ST	41,595,000.00			41,595,000.00	111,393.72	-	111,393.72	-	-	41,595,000.00
M-3	MEZ, FLT,ST	13,234,000.00			13,234,000.00	39,429.97	-	39,429.97	-	-	13,234,000.00
B-1	SUB, FLT,ST	11,344,000.00			11,344,000.00	43,078.84	-	43,078.84	-	-	11,344,000.00
B-2	SUB, FLT,ST	7,563,000.00			7,563,000.00	31,651.16	-	31,651.16	-	-	7,563,000.00
B-3	SUB, FLT,ST	8,319,000.00			8,319,000.00	34,815.02	-	34,815.02	-	-	8,319,000.00
X	SUB	13,234,898.00			13,234,618.21	3,135,114.50	-	3,135,114.50	-	-	13,234,618.21
P	SUB,EXE	-			-	288,225.58	-	288,225.58	-	-	-
UT-R	R	-			-	-	-	-	-	-	-


Total		756,263,898.00			720,580,704.19	4,529,089.72	14,224,851.77	18,753,941.49	-	-	706,355,852.42


	Interest Accrual Detail				Current Period Factor Information per $1,000 of Original Face
						Orig. Principal	Prior				Current
	Period	Period				(with Notional)	Principal			Total	Principal
Class	Starting	Ending		Method	Cusip	Balance	Balance	Interest	Principal	Distribution	Balance
							(1)	(2)	(3)	(4)=(2)+(3)	(5)

A-1	08/25/03	09/24/03		A-Act/360	61746WG38	384,805,000.00	951.246224	1.302415	20.123468	21.425883	931.122756
A-2	08/25/03	09/24/03		A-Act/360	61746WF47	131,500,000.00	928.091848	1.182802	27.540956	28.723757	900.550892
A-3	08/25/03	09/24/03		A-Act/360	61746WG53	63,831,000.00	883.030262	0.996107	44.799627	45.795734	838.230635
A-4	08/25/03	09/24/03		A-Act/360	61746WG61	40,000,000.00	1,000.000000	1.386389	-	1.386389	1,000.000000
M-1	08/25/03	09/24/03		A-Act/360	61746WF54	40,838,000.00	1,000.000000	1.705000	-	1.705000	1,000.000000
M-2	08/25/03	09/24/03		A-Act/360	61746WF62	41,595,000.00	1,000.000000	2.678056	-	2.678056	1,000.000000
M-3	08/25/03	09/24/03		A-Act/360	61746WF70	13,234,000.00	1,000.000000	2.979445	-	2.979445	1,000.000000
B-1	08/25/03	09/24/03		A-Act/360	61746WF88	11,344,000.00	1,000.000000	3.797500	-	3.797500	1,000.000000
B-2	08/25/03	09/24/03		A-Act/360	61746WF96	7,563,000.00	1,000.000000	4.185001	-	4.185001	1,000.000000
B-3	08/25/03	09/24/03		A-Act/360	61746WG20	8,319,000.00	1,000.000000	4.185001	-	4.185001	1,000.000000
X	08/25/03	09/24/03		A-Act/360		13,234,898.00	999.978860	236.882407	-	236.882407	999.978860
P	08/25/03	09/24/03		-		-	-	-	-	-	-
UT-R	08/25/03	09/24/03		-		-	-	-	-	-	-


							Page 2 of 25				© COPYRIGHT 2003 Deutsche Bank
	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates
	REMIC II Series 2003-NC4
	Certificate Payment Report for September 25, 2003 Distribution


	Distribution in Dollars - to Date
											Current
	Original				Unscheduled	Scheduled	Total	Total	Realized	Deferred	Principal
Class	Face Value		Interest		Principal	Principal	Principal	Distribution	Losses	Interest	Balance
	(1)		(2)		(3)	(4)	(5)=(3)+(4)	(6)=(2)+(5)	(7)	(8)	(9)=(1)-(5)-(7)+(8)

A-1	384,805,000.00		2,582,864.87		24,941,424.63	1,562,883.13	26,504,307.75	29,087,172.62	-	-	358,300,692.25
A-2	131,500,000.00		815,788.49		12,282,446.67	795,111.03	13,077,557.70	13,893,346.19	-	-	118,422,442.30
A-3	63,831,000.00		345,983.84		9,698,089.13	627,811.21	10,325,900.33	10,671,884.17	-	-	53,505,099.67
A-4	40,000,000.00		276,931.87		0.00	-	-	276,931.87	-	-	40,000,000.00
M-1	40,838,000.00		345,272.46		0.00	-	-	345,272.46	-	-	40,838,000.00
M-2	41,595,000.00		546,210.15		-	-	-	546,210.15	-	-	41,595,000.00
M-3	13,234,000.00		192,954.92		-	-	-	192,954.92	-	-	13,234,000.00
B-1	11,344,000.00		210,002.24		-	-	-	210,002.24	-	-	11,344,000.00
B-2	7,563,000.00		154,093.75		-	-	-	154,093.75	-	-	7,563,000.00
B-3	8,319,000.00		169,497.01		-	-	-	169,497.01	-	-	8,319,000.00
X	13,234,898.00		16,216,939.03		244.61	34.78	279.39	16,217,218.42	-	-	13,234,618.21
P	-		830,588.25		-	-	-	830,588.25	-	-	-
UT-R	-		-		-	-	-	-	-	-	-


Total	756,263,898.00		22,687,126.88		46,922,205.03	2,985,840.15	49,908,045.18	72,595,172.06	-	-	706,355,852.42


	Interest Detail
	Pass-	Prior Principal				Non-	Prior	Unscheduled		Paid or	Current
	Through	(with Notional)			Accrued	Supported	Unpaid	Interest	Optimal	Deferred	Unpaid
Class	Rate	Balance			Interest	Interest SF	Interest	Adjustments	Interest	Interest	Interest
					(1)	(2)	(3)	(4)	(5)=(1)-(2)+(3)+(4)	(6)	(7)=(5)-(6)

A-1	1.59000%	366,044,303.36			501,175.66	-	-	-	501,175.66	501,175.66	-
A-2	1.48000%	122,044,077.98			155,538.40	-	-	-	155,538.40	155,538.40	-
A-3	1.31000%	56,364,704.64			63,582.52	-	-	-	63,582.52	63,582.52	-
A-4	1.61000%	40,000,000.00			55,455.56	-	-	-	55,455.56	55,455.56	-
M-1	1.98000%	40,838,000.00			69,628.79	-	-	-	69,628.79	69,628.79	-
M-2	3.11000%	41,595,000.00			111,393.72	-	-	-	111,393.72	111,393.72	-
M-3	3.46000%	13,234,000.00			39,429.97	-	-	-	39,429.97	39,429.97	-
B-1	4.41000%	11,344,000.00			43,078.84	-	-	-	43,078.84	43,078.84	-
B-2	4.86000%	7,563,000.00			31,651.16	-	-	-	31,651.16	31,651.16	-
B-3	4.86000%	8,319,000.00			34,815.02	-	-	-	34,815.02	34,815.02	-
X	5.22098%	13,234,618.21			3,135,114.50	-	-	-	3,135,114.50	3,135,114.50	-
P		-			288,225.58	-	-	-	288,225.58	288,225.58	-
UT-R		-			-	-	-	-	-	-	-


Total		720,580,704.19			4,529,089.72	-	-	-	4,529,089.72	4,529,089.72	-


							Page 3 of 25				© COPYRIGHT 2003 Deutsche Bank
	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates

	Collection Account Report for September 25, 2003 Distribution


	Collection Account Report


SUMMARY						GROUP 2	GROUP 1	TOTAL

	Principal Collections					6,481,240.65	7,743,611.11	14,224,851.76
	Principal Other Accounts					0.00	0.00	0.00
	TOTAL NET PRINCIPAL					6,481,240.65	7,743,611.11	14,224,851.76

	Interest Collections					1,618,511.84	2,662,372.66	4,280,884.50
	Interest Withdrawals					0.00	0.00	0.00
	Interest Other Accounts					0.00	0.00	0.00
	Interest Fees					(14,779.82)	(25,240.38)	(40,020.20)
	TOTAL NET INTEREST					1,603,732.02	2,637,132.28	4,240,864.30

	TOTAL PRINCIPAL & INTEREST DISTRIBUTABLE					8,084,972.67	10,380,743.39	18,465,716.06

	Prepayment Penalties Collected							288,225.58

	TOTAL AVAILABLE FUNDS FOR DISTRIBUTION							18,753,941.64


PRINCIPAL - COLLECTIONS						GROUP 2	GROUP 1	TOTAL

	Scheduled Principal Received					230,259.76	355,890.59	586,150.35
	Prepayments In Full					6,392,984.15	7,347,041.81	13,740,025.96
	Curtailments					(142,003.26)	40,678.71	(101,324.55)
	Liquidations					0.00	0.00	0.00
	Insurance Principal					0.00	0.00	0.00
	Repurchased Principal Amounts					0.00	0.00	0.00
	Other Principal					0.00	0.00	0.00
	Total Realized Loss Of Principal					0.00	0.00	0.00
	Delinquent Principal					(206,078.44)	(315,784.35)	(521,862.79)
	Advanced Principal					206,078.44	315,784.35	521,862.79

	TOTAL PRINCIPAL COLLECTED					6,481,240.65	7,743,611.11	14,224,851.76


				Page 4 of 25				© COPYRIGHT 2003 Deutsche Bank
	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates

	Collection Account Report for September 25, 2003 Distribution


	Collection Account Report


PRINCIPAL - WITHDRAWALS						GROUP 2	GROUP 1	TOTAL
SPACE INTENTIONALLY LEFT BLANK


PRINCIPAL - OTHER ACCOUNTS						GROUP 2	GROUP 1	TOTAL
SPACE INTENTIONALLY LEFT BLANK


INTEREST - COLLECTIONS						GROUP 2	GROUP 1	TOTAL

	Scheduled Interest					1,717,610.04	2,827,099.13	4,544,709.17
	Liquidation Interest					0.00	0.00	0.00
	Repurchased Interest					0.00	0.00	0.00
	Insurance Interest					0.00	0.00	0.00
	Other Interest					0.00	0.00	0.00
	Relief Act Interest Shortfalls					0.00	0.00	0.00
	Net Prepayment Interest Shortfalls					0.00	0.00	0.00
	Delinquent Interest					(1,511,497.87)	(2,490,015.11)	(4,001,512.98)
	Interest Advanced					1,412,399.67	2,325,288.64	3,737,688.31

	TOTAL INTEREST COLLECTED					1,618,511.84	2,662,372.66	4,280,884.50


				Page 5 of 25				© COPYRIGHT 2003 Deutsche Bank
	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates

	Collection Account Report for September 25, 2003 Distribution


	Collection Account Report


INTEREST - WITHDRAWALS						GROUP 2	GROUP 1	TOTAL

	Trust Fund Expenses							0.00
	Nonrecoverable Advances							0.00
	Reimbursements to Master Servicer							0.00

	TOTAL INTEREST WITHDRAWALS							0.00


INTEREST - OTHER ACCOUNTS						GROUP 2	GROUP 1	TOTAL


	TOTAL INTEREST OTHER ACCOUNTS					0.00	0.00	0.00


INTEREST - FEES						GROUP 2	GROUP 1	TOTAL

	Current Servicing Fees					13,429.49	22,987.81	36,417.30
	Trustee Fees					1,350.33	2,252.57	3,602.90



	TOTAL INTEREST OTHER FEES					14,779.82	25,240.38	40,020.20


				Page 6 of 25				© COPYRIGHT 2003 Deutsche Bank
	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates

	Credit Enhancement Report for September 25, 2003 Distribution


	Credit Enhancement Report


ACCOUNTS						GROUP 2	GROUP 1	TOTAL

	Excess Reserve Fund Balance (Ending)							0.00


INSURANCE						GROUP 2	GROUP 1	TOTAL
SPACE INTENTIONALLY LEFT BLANK


STRUCTURAL FEATURES						GROUP 2	GROUP 1	TOTAL

	Beginning Subordinated Amount							13,234,618.20
	Ending Subordinated Amount							13,234,618.21
	Specified Subordinated Amount							13,234,618.21


	Senior Enhancement Percentage							19.27%


				Page 7 of 25				© COPYRIGHT 2003 Deutsche Bank
	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates

	Collateral Report for September 25, 2003 Distribution


	Collateral Report


COLLATERAL						GROUP 2	GROUP 1	TOTAL
	Loan Count:
	*Original*					1557	3075	4632
	Prior					1,499	2,972	4,471
	Prefunding					-	-	-
	Scheduled Paid Offs					-	-	-
	Full Voluntary Prepayments					(22)	(43)	(65)
	Repurchases					-	-	-
	Liquidations					-	-	-
	Current					1,478	2,929	4,407

	*Principal Balance:*
	Original					286,988,791.32	469,275,106.28	756,263,897.60
	Prior					270,066,447.67	450,514,256.52	720,580,704.19
	Prefunding					-	-	-
	Scheduled Principal					(230,259.76)	(355,890.59)	(586,150.35)
	Partial and Full Voluntary Prepayments					(6,250,980.89)	(7,387,720.52)	(13,638,701.41)
	Repurchases					-	-	-
	Liquidations					-	-	-
	Current					263,585,207.01	442,770,645.41	706,355,852.42

PREFUNDING						GROUP 2	GROUP 1	TOTAL
SPACE INTENTIONALLY LEFT BLANK


	Group 1
	Group 2
Current Prin Balance by Groups (in millions of dollars)					Total Current Principal Balance (in millions of dollars)


				Page 8 of 25				© COPYRIGHT 2003 Deutsche Bank
	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates

	Collateral Report for September 25, 2003 Distribution


	Collateral Report


CHARACTERISTICS						GROUP 2	GROUP 1	TOTAL

	Weighted Average Coupon Original					7.639188%	7.541862%	7.578796%
	Weighted Average Coupon Prior					7.629438%	7.535610%	7.570947%
	Weighted Average Coupon Current					7.631944%	7.530325%	7.568411%
	Weighted Average Months to Maturity Original					343	354	350
	Weighted Average Months to Maturity Prior					339	351	347
	Weighted Average Months to Maturity Current					338	350	346
	Weighted Avg Remaining Amortization Term Original					342	354	349
	Weighted Avg Remaining Amortization Term Prior					339	351	346
	Weighted Avg Remaining Amortization Term Current					338	350	345
	Weighted Average Seasoning Original					3.45	3.27	3.34
	Weighted Average Seasoning Prior					6.44	6.27	6.33
	Weighted Average Seasoning Current					7.44	7.27	7.33

Note: Original information refers to deal issue.


	Group 1
	Group 2
WAC by Groups					Total WAC


WARAT by Groups					Total WARAT


Note: Dates correspond to distribution dates.
				Page 9 of 25				© COPYRIGHT 2003 Deutsche Bank
	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates

	Collateral Report for September 25, 2003 Distribution


	Collateral Report


ARM CHARACTERISTICS						GROUP 2	GROUP 1	TOTAL

	Weighted Average Margin Original					3.305%	5.530%
	Weighted Average Margin Prior					3.289%	5.533%
	Weighted Average Margin Current					3.280%	5.521%
	Weighted Average Max Rate Original					7.511%	12.459%
	Weighted Average Max Rate Prior					7.471%	12.463%
	Weighted Average Max Rate Current					7.436%	12.431%
	Weighted Average Min Rate Original					3.816%	6.512%
	Weighted Average Min Rate Prior					3.791%	6.511%
	Weighted Average Min Rate Current					3.771%	6.491%
	Weighted Average Cap Up Original					0.844%	1.291%
	Weighted Average Cap Up Prior					0.843%	1.291%
	Weighted Average Cap Up Current					0.836%	1.289%
	Weighted Average Cap Down Original					0.844%	1.291%
	Weighted Average Cap Down Prior					0.843%	1.291%
	Weighted Average Cap Down Current					0.836%	1.289%

Note: Original information refers to deal issue.

SERVICING FEES / ADVANCES						GROUP 2	GROUP 1	TOTAL

	Current Servicing Fees					13,429.49	22,987.81	36,417.30
	Delinquent Servicing Fees					99,098.20	164,726.47	263,824.67
	TOTAL SERVICING FEES					112,527.69	187,714.28	300,241.97

	Prepayment Interest Shortfall					19,263.84	23,441.50	42,705.34
	Compensating Interest					(19,263.84)	(23,441.50)	(42,705.34)
	Delinquent Servicing Fees					(99,098.20)	(164,726.47)	(263,824.67)

	COLLECTED SERVICING FEES					13,429.49	22,987.81	36,417.30


	Aggregate Advances with respect to this Distribution					1,618,478.11	2,641,072.99	4,259,551.10
	Current Nonrecoverable Advances					0.00	0.00	0.00
	Cumulative Nonrecoverable Advances					0.00	0.00	0.00


ADDITIONAL COLLATERAL INFORMATION						GROUP 2	GROUP 1	TOTAL

	Net Prepayment Interest Shortfall							0.00

	Net Monthly Excess Cash Flow							3,135,114.66


	Ending Pool Stated Principal Balance					263,585,207.01	442,770,645.41	706,355,852.42


				Page 10 of 25				© COPYRIGHT 2003 Deutsche Bank
	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates

	Delinquency Report for September 25, 2003 Distribution


	Delinquency Report - Total


				<1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT		Balance			11,963,065.66	3,810,010.80	-	15,773,076.46
		% Balance			1.69%	0.54%	0.00%	2.23%
		# Loans			79	23	-	102
		% # Loans			1.79%	0.52%	0.00%	2.31%
FORECLOSURE		Balance		244,811.19	345,298.49	883,869.03	5,029,557.40	6,503,536.11
		% Balance		0.03%	0.05%	0.13%	0.71%	0.92%
		# Loans		2	2	4	32	40
		% # Loans		0.05%	0.05%	0.09%	0.73%	0.91%
BANKRUPTCY		Balance		1,457,309.51	205,690.70	-	124,232.82	1,787,233.03
		% Balance		0.21%	0.03%	0.00%	0.02%	0.25%
		# Loans		14	1	-	2	17
		% # Loans		0.32%	0.02%	0.00%	0.05%	0.39%
REO		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%

TOTAL		Balance		1,702,120.70	12,514,054.85	4,693,879.83	5,153,790.22	24,063,845.60
		% Balance		0.24%	1.77%	0.66%	0.73%	3.41%
		# Loans		16	82	27	34	159
		% # Loans		0.36%	1.86%	0.61%	0.77%	3.61%
Note: <1 Payment = 0-30days, 1 Payment = 31-60days, 2 Payments = 61-90days, 3+ Payments = 91+
								6 Months Moving Average
1 or 2 Payments Delinquent					3 or More Payments Delinquent


Total Foreclosure					Total Bankruptcy and REO


Note: Dates correspond to distribution dates.
				Page 11 of 25				© COPYRIGHT 2003 Deutsche Bank
	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates

	Delinquency Report for September 25, 2003 Distribution


	Delinquency Report - Group 1 Group


				<1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT		Balance			8,326,829.66	2,891,623.94	-	11,218,453.60
		% Balance			1.88%	0.65%	0.00%	2.53%
		# Loans			57	18	-	75
		% # Loans			1.95%	0.61%	0.00%	2.56%
FORECLOSURE		Balance		175,393.85	345,298.49	425,606.12	1,839,677.82	2,785,976.28
		% Balance		0.04%	0.08%	0.10%	0.42%	0.63%
		# Loans		1	2	3	15	21
		% # Loans		0.03%	0.07%	0.10%	0.51%	0.72%
BANKRUPTCY		Balance		1,026,115.43	205,690.70	-	124,232.82	1,356,038.95
		% Balance		0.23%	0.05%	0.00%	0.03%	0.31%
		# Loans		9	1	-	2	12
		% # Loans		0.31%	0.03%	0.00%	0.07%	0.41%
REO		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%

TOTAL		Balance		1,201,509.28	8,877,818.85	3,317,230.06	1,963,910.64	15,360,468.83
		% Balance		0.27%	2.01%	0.75%	0.44%	3.47%
		# Loans		10	60	21	17	108
		% # Loans		0.34%	2.05%	0.72%	0.58%	3.69%
Note: <1 Payment = 0-30days, 1 Payment = 31-60days, 2 Payments = 61-90days, 3+ Payments = 91+
								6 Months Moving Average
1 or 2 Payments Delinquent					3 or More Payments Delinquent


Total Foreclosure					Total Bankruptcy and REO


Note: Dates correspond to distribution dates.
				Page 12 of 25				© COPYRIGHT 2003 Deutsche Bank
	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates

	Delinquency Report for September 25, 2003 Distribution


	Delinquency Report - Group 2 Group


				<1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT		Balance			3,636,236.00	918,386.86	-	4,554,622.86
		% Balance			1.38%	0.35%	0.00%	1.73%
		# Loans			22	5	-	27
		% # Loans			1.49%	0.34%	0.00%	1.83%
FORECLOSURE		Balance		69,417.34	-	458,262.91	3,189,879.58	3,717,559.83
		% Balance		0.03%	0.00%	0.17%	1.21%	1.41%
		# Loans		1	-	1	17	19
		% # Loans		0.07%	0.00%	0.07%	1.15%	1.29%
BANKRUPTCY		Balance		431,194.08	-	-	-	431,194.08
		% Balance		0.16%	0.00%	0.00%	0.00%	0.16%
		# Loans		5	-	-	-	5
		% # Loans		0.34%	0.00%	0.00%	0.00%	0.34%
REO		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%

TOTAL		Balance		500,611.42	3,636,236.00	1,376,649.77	3,189,879.58	8,703,376.77
		% Balance		0.19%	1.38%	0.52%	1.21%	3.30%
		# Loans		6	22	6	17	51
		% # Loans		0.41%	1.49%	0.41%	1.15%	3.45%
Note: <1 Payment = 0-30days, 1 Payment = 31-60days, 2 Payments = 61-90days, 3+ Payments = 91+
								6 Months Moving Average
1 or 2 Payments Delinquent					3 or More Payments Delinquent


Total Foreclosure					Total Bankruptcy and REO


Note: Dates correspond to distribution dates.
				Page 13 of 25				© COPYRIGHT 2003 Deutsche Bank
	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates

	REO Report for September 25, 2003 Distribution


	REO Report - Mortgage Loans that Become REO During Current Distribution


SUMMARY				LOAN GROUP

Total Loan Count = 0				Loan Group 1 = Group 1 Group; REO Book Value = 000.00
Total Original Principal Balance = 000.00				Loan Group 2 = Group 2 Group; REO Book Value = 000.00
Total Current Balance = 000.00
REO Book Value = 000.00

REO Book Value reported corresponds to total REO loans, including loans that become REO during current distribution.

Loan Number		Original	Stated		Current	State &
&		Principal	Principal	Paid to	Note	LTV at	Original	Origination
Loan Group		Balance	Balance	Date	Rate	Origination	Term	Date
SPACE INTENTIONALLY LEFT BLANK


				Page 14 of 25				© COPYRIGHT 2003 Deutsche Bank
	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates

	Foreclosure Report for September 25, 2003 Distribution


	Foreclosure Report - Mortgage Loans that Become Foreclosure During Current Distribution


SUMMARY				LOAN GROUP

Total Loan Count = 31				Loan Group 1 = Group 1 Group
Total Original Principal Balance = 5,261,185.00				Loan Group 2 = Group 2 Group
Total Current Balance = 5,233,545.86


Loan Number		Original	Stated		Current	State &
&		Principal	Principal	Paid to	Note	LTV at	Original	Origination
Loan Group		Balance	Balance	Date	Rate	Origination	Term	Date

751796 1		92,400.00	91,718.89	Apr-01-03	6.500%	NM - 70.00%	360	Jan-17-03
757889 1		144,500.00	143,704.35	May-01-03	7.990%	CO - 85.00%	360	Dec-23-02
761705 1		42,400.00	42,147.39	Mar-01-03	7.750%	AL - 80.00%	360	Dec-23-02
771973 1		176,375.00	175,393.85	Aug-01-03	7.250%	NV - 85.00%	360	Jan-31-03
772111 1		104,000.00	103,329.79	Apr-01-03	6.490%	WA - 80.00%	360	Jan-13-03
772743 1		199,500.00	198,277.11	May-01-03	6.750%	WA - 70.00%	360	Jan-16-03
778812 1		137,250.00	136,590.63	Jun-01-03	7.990%	IL - 90.00%	360	Jan-15-03
779673 1		77,600.00	77,202.52	Apr-01-03	8.750%	FL - 80.00%	360	Dec-31-02
781943 1		210,000.00	208,707.86	Jun-01-03	7.430%	WA - 75.00%	360	Jan-31-03
783656 1		73,950.00	73,604.26	Apr-01-03	8.250%	IA - 85.00%	360	Jan-24-03
783787 1		240,000.00	238,743.45	Apr-01-03	7.750%	CA - 76.19%	360	Jan-31-03
785473 1		134,300.00	133,775.98	Apr-01-03	8.250%	MS - 85.00%	360	Jan-29-03
789918 1		84,000.00	83,624.66	May-01-03	8.350%	MI - 80.00%	360	Jan-31-03
792942 1		147,200.00	146,799.34	Feb-01-03	10.000%	IL - 80.00%	360	Jan-29-03
793612 1		115,000.00	114,619.12	Apr-01-03	9.800%	CA - 69.70%	360	Jan-27-03
801824 1		93,600.00	93,093.62	Mar-01-03	7.750%	CO - 80.00%	360	Jan-31-03
806116 1		44,910.00	44,789.45	Apr-01-03	10.820%	TX - 90.00%	360	Jan-31-03
729568 2		500,000.00	497,509.93	Feb-01-03	8.490%	DC - 83.33%	360	Dec-23-02
744015 2		120,000.00	119,433.30	Apr-01-03	8.750%	WA - 60.00%	360	Dec-18-02
746468 2		460,800.00	458,262.91	May-01-03	7.990%	TX - 90.00%	360	Dec-09-02
755909 2		467,500.00	464,364.86	Apr-01-03	6.990%	CA - 85.00%	360	Dec-11-02
762559 2		600,000.00	596,175.38	Apr-01-03	7.250%	CA - 88.63%	360	Dec-30-02
766125 2		37,500.00	37,374.46	Mar-01-03	9.750%	NY - 75.00%	360	Jan-10-03
776664 2		27,200.00	26,940.00	Apr-01-03	10.990%	WA - 20.00%	240	Jan-07-03
787154 2		440,000.00	438,314.36	Apr-01-03	9.100%	NY - 80.00%	360	Jan-31-03
787343 2		39,950.00	39,771.56	Apr-01-03	8.350%	FL - 85.00%	360	Jan-24-03
789114 2		42,500.00	42,351.72	Mar-01-03	9.650%	IL - 85.00%	360	Jan-22-03
793265 2		168,750.00	168,213.02	Mar-01-03	9.990%	TX - 75.00%	360	Jan-16-03
794636 2		52,000.00	51,879.90	Mar-01-03	11.500%	TX - 80.00%	360	Jan-31-03
799153 2		111,000.00	110,494.17	Apr-01-03	8.250%	TX - 62.01%	360	Jan-31-03
802741 2		77,000.00	76,338.02	Apr-01-03	10.740%	CA - 20.00%	240	Jan-31-03


				Page 15 of 25				© COPYRIGHT 2003 Deutsche Bank
	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates

	Prepayment Report for September 25, 2003 Distribution


	Prepayment Report - Voluntary Prepayments


VOLUNTARY PREPAYMENTS						GROUP 2	GROUP 1	TOTAL

	*Current*
	Number of Paid in Full Loans					22	43	65
	Number of Repurchased Loans					-	-	-
	Total Number of Loans Prepaid in Full					22	43	65

	Paid in Full Balance					6,392,984.15	7,347,041.81	13,740,025.96
	Repurchased Loans Balance					-	-	-
	Curtailments Amount					(142,003.26)	40,678.71	(101,324.55)
	Total Prepayment Amount					6,250,980.89	7,387,720.52	13,638,701.41

	*Cumulative*
	Number of Paid in Full Loans					80	146	226
	Number of Repurchased Loans					-	-	-
	Total Number of Loans Prepaid in Full					80	146	226

	Paid in Full Balance					22,250,340.25	24,538,346.77	46,788,687.02
	Repurchased Loans Balance					-	-	-
	Curtailments Amount					(28,356.54)	161,874.53	133,517.99
	Total Prepayment Amount					22,221,983.71	24,700,221.30	46,922,205.01

SPACE INTENTIONALLY LEFT BLANK


Total Prepayments by Groups (in thousands of dollars)					Total Prepayments (in thousands of dollars)


				Page 16 of 25				© COPYRIGHT 2003 Deutsche Bank
	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates

	Prepayment Report for September 25, 2003 Distribution


	Prepayment Report - Voluntary Prepayments


VOLUNTARY PREPAYMENT RATES						GROUP 2	GROUP 1	TOTAL

	SMM					2.32%	1.64%	1.89%
	3 Months Avg SMM					2.08%	1.46%	1.69%
	12 Months Avg SMM
	Avg SMM Since Cut-off					1.60%	1.08%	1.28%

	CPR					24.52%	18.01%	20.51%
	3 Months Avg CPR					22.29%	16.17%	18.52%
	12 Months Avg CPR
	Avg CPR Since Cut-off					17.64%	12.20%	14.29%

	PSA					1648.30%	1238.98%	1398.60%
	3 Months Avg PSA Approximation					1731.25%	1289.50%	1462.43%
	12 Months Avg PSA Approximation
	Avg PSA Since Cut-off Approximation					1620.86%	1157.92%	1339.44%



	Group 1
	Group 2


CPR by Groups					Total CPR


PSA by Groups					Total PSA


				Page 17 of 25				© COPYRIGHT 2003 Deutsche Bank
	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates

	Prepayment Report for September 25, 2003 Distribution


	Prepayment Report - Voluntary Prepayments

	Group 1
	Group 2

CPR Avg since Cut-Off by Groups					Total CPR Avg since Cut-Off


PSA Avg since Cut-Off by Groups					Total PSA Avg since Cut-Off


PREPAYMENT CALCULATION METHODOLOGY
Single Monthly Mortality (SMM): (Voluntary partial and full prepayments + Repurchases)/(Beg Principal Balance - Sched Principal)
Conditional Prepayment Rate (CPR): 1-((1-SMM)^12)
PSA Standard Prepayment Model: CPR/(0.02*min(30,WAS))
Average SMM over period between nth month and mth month (AvgSMMn,m): [(1-SMMn) * (1-SMMn+1) .......(1-SMMm)]^(1/months in period n,m)
Average CPR over period between the nth month and mth month (AvgCPRn,m): 1-((1-AvgSMMn,m)^12)
Average PSA Approximation over period between the nth month and mth month: AvgCPRn,m/(0.02*Avg WASn,m))
Average WASn,m: (min(30,WASn)+min(30,WASn+1)+.......+min(30,WASm)/(number of months in the period n,m)
Weighted Average Seasoning (WAS)

Note: Prepayment rates are calculated since deal issue date and include partial and full voluntary prepayments and repurchases.
Dates correspond to distribution dates.

				Page 18 of 25				© COPYRIGHT 2003 Deutsche Bank


	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates

	Prepayment Detail Report for September 25, 2003 Distribution


	Prepayment Detail Report - Loans Prepaid in Full During Current Distribution


SUMMARY						LOAN GROUP

Total Loan Count = 65						Loan Group 1 = Group 1 Group
Total Original Principal Balance = 13,815,100.00						Loan Group 2 = Group 2 Group
Total Prepayment Amount = 13,740,025.96


Loan Number			Original			Current	State &	Type Prepayment
&		Loan	Principal	Prepayment	Prepayment	Note	LTV at	&	Origination
Loan Group		Status	Balance	Amount	Date	Rate	Origination	Original Term	Date

746612 1			190,000.00	188,555.02	Aug-26-03	6.875%	NC - 79.17%	Paid Off - 360	Dec-04-02
764252 1			204,850.00	203,702.08	Aug-08-03	7.250%	NJ - 85.00%	Paid Off - 360	Dec-31-02
764629 1			116,000.00	115,611.81	Aug-12-03	8.990%	ME - 80.00%	Paid Off - 360	Jan-07-03
764976 1			240,000.00	238,664.90	Aug-30-03	7.250%	CA - 80.00%	Paid Off - 360	Dec-31-02
765491 1			95,200.00	94,695.46	Aug-08-03	7.500%	WA - 85.00%	Paid Off - 360	Dec-30-02
766143 1			50,000.00	49,576.04	Aug-22-03	7.750%	OH - 51.62%	Paid Off - 360	Dec-23-02
766770 1			145,000.00	144,193.67	Aug-01-03	7.250%	CA - 58.70%	Paid Off - 360	Dec-31-02
767156 1			138,400.00	137,591.84	Aug-07-03	7.000%	FL - 80.00%	Paid Off - 360	Dec-31-02
767486 1			258,900.00	257,837.99	Aug-08-03	7.990%	CA - 49.69%	Paid Off - 360	Jan-08-03
770374 1			144,900.00	144,092.62	Aug-26-03	7.240%	DE - 89.98%	Paid Off - 360	Dec-19-02
774210 1			91,000.00	90,726.05	Aug-21-03	9.500%	MA - 45.05%	Paid Off - 360	Jan-13-03
775106 1			312,000.00	310,501.88	Aug-06-03	7.990%	CA - 80.00%	Paid Off - 360	Dec-24-02
775719 1			225,000.00	223,733.22	Aug-30-03	6.750%	IL - 94.94%	Paid Off - 360	Jan-07-03
775730 1			74,000.00	73,777.19	Aug-08-03	9.500%	FL - 68.52%	Paid Off - 360	Jan-10-03
775743 1			168,750.00	168,074.95	Aug-11-03	8.890%	MI - 75.00%	Paid Off - 360	Dec-30-02
779426 1			157,500.00	156,634.04	Aug-22-03	6.500%	WA - 75.00%	Paid Off - 360	Jan-06-03
779794 1			126,000.00	125,281.88	Aug-13-03	6.990%	AZ - 90.00%	Paid Off - 360	Jan-15-03
781577 1			65,000.00	64,705.39	Aug-13-03	7.490%	MN - 40.12%	Paid Off - 360	Jan-31-03
781762 1			92,800.00	92,505.67	Aug-13-03	9.250%	MI - 80.00%	Paid Off - 360	Jan-10-03
783052 1			276,250.00	275,034.38	Aug-26-03	7.990%	NY - 85.00%	Paid Off - 360	Jan-29-03
783055 1			375,000.00	373,109.90	Aug-11-03	6.990%	CA - 66.37%	Paid Off - 360	Jan-10-03
783570 1			231,300.00	230,136.57	Aug-14-03	6.990%	IL - 90.00%	Paid Off - 360	Jan-29-03
783902 1			106,500.00	106,064.03	Aug-13-03	8.000%	MI - 75.00%	Paid Off - 360	Jan-08-03
783922 1			202,500.00	201,014.16	Aug-13-03	6.500%	CA - 90.00%	Paid Off - 360	Jan-15-03
784610 1			324,000.00	322,671.01	Aug-29-03	7.990%	CA - 58.91%	Paid Off - 360	Jan-30-03
785225 1			130,000.00	129,466.75	Aug-22-03	7.990%	CA - 78.79%	Paid Off - 360	Jan-09-03
785482 1			143,000.00	142,175.19	Aug-14-03	6.250%	CA - 58.61%	Paid Off - 360	Jan-15-03
786451 1			110,000.00	109,501.33	Aug-04-03	7.650%	NY - 42.31%	Paid Off - 360	Jan-14-03
786464 1			107,500.00	106,947.59	Aug-13-03	6.850%	MO - 67.19%	Paid Off - 360	Jan-27-03
786821 1			196,800.00	195,717.98	Aug-25-03	6.500%	CA - 80.00%	Paid Off - 360	Jan-30-03
787697 1			171,750.00	171,114.56	Aug-14-03	8.500%	IL - 83.78%	Paid Off - 360	Jan-17-03
787791 1			204,000.00	203,094.93	Aug-05-03	7.600%	VA - 85.00%	Paid Off - 360	Jan-31-03
788720 1			129,600.00	129,118.48	Aug-13-03	8.500%	MI - 80.00%	Paid Off - 360	Jan-30-03
790005 1			225,900.00	224,770.41	Aug-28-03	6.990%	CA - 90.00%	Paid Off - 360	Jan-14-03
791288 1			112,600.00	112,036.96	Aug-18-03	6.990%	RI - 78.74%	Paid Off - 360	Jan-17-03
793055 1			140,000.00	139,507.76	Aug-04-03	8.750%	IL - 69.31%	Paid Off - 360	Jan-30-03
794550 1			216,000.00	215,113.98	Aug-15-03	7.990%	CA - 53.33%	Paid Off - 360	Jan-31-03
796218 1			250,000.00	249,096.16	Aug-06-03	8.615%	CA - 74.63%	Paid Off - 360	Jan-30-03
796700 1			83,300.00	83,050.79	Aug-25-03	9.600%	MI - 85.00%	Paid Off - 360	Jan-29-03
799038 1			144,000.00	143,528.91	Aug-28-03	9.100%	IL - 80.00%	Paid Off - 360	Jan-29-03
801564 1			160,000.00	159,365.98	Aug-04-03	7.240%	CA - 80.00%	Paid Off - 360	Jan-31-03
802184 1			155,000.00	154,277.05	Aug-15-03	7.750%	CA - 59.62%	Paid Off - 360	Jan-29-03
804367 1			292,000.00	290,665.27	Aug-25-03	7.450%	CA - 89.85%	Paid Off - 360	Jan-31-03
738490 2			399,000.00	396,990.10	Aug-14-03	7.750%	MI - 86.74%	Paid Off - 360	Dec-11-02

					Page 19 of 25				© COPYRIGHT 2003 Deutsche Bank
	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates

	Prepayment Detail Report for September 25, 2003 Distribution


	Prepayment Detail Report - Loans Prepaid in Full During Current Distribution



Loan Number			Original			Current	State &
&		Loan	Principal	Prepayment	Prepayment	Note	LTV at	Original	Origination
Loan Group		Status	Balance	Amount	Date	Rate	Origination	Term	Date

749115 2			357,000.00	355,250.39	Aug-11-03	7.890%	MI - 85.00%	Paid Off - 360	Dec-30-02
752468 2			384,750.00	382,810.28	Aug-13-03	7.800%	CA - 85.50%	Paid Off - 360	Dec-20-02
760859 2			380,000.00	378,914.42	Aug-13-03	9.750%	TX - 80.00%	Paid Off - 360	Jan-14-03
764334 2			256,000.00	254,710.42	Aug-26-03	7.750%	NV - 80.00%	Paid Off - 360	Dec-31-02
764881 2			418,000.00	415,992.93	Aug-04-03	7.990%	CA - 95.00%	Paid Off - 360	Dec-13-02
766017 2			399,000.00	393,068.13	Aug-27-03	6.990%	CO - 70.00%	Paid Off - 360	Dec-17-02
772814 2			384,000.00	382,079.88	Aug-21-03	6.990%	CA - 80.00%	Paid Off - 360	Jan-30-03
777600 2			117,600.00	117,392.49	Aug-14-03	11.990%	VA - 70.00%	Paid Off - 360	Jan-14-03
781115 2			140,000.00	139,334.72	Aug-25-03	7.250%	CA - 63.06%	Paid Off - 360	Jan-17-03
782917 2			212,500.00	211,603.53	Aug-28-03	7.850%	CA - 85.00%	Paid Off - 360	Jan-29-03
784776 2			135,000.00	134,386.32	Aug-18-03	7.500%	CA - 90.00%	Paid Off - 360	Jan-23-03
784999 2			468,800.00	465,088.97	Aug-13-03	7.000%	IL - 87.27%	Paid Off - 360	Jan-14-03
787348 2			325,000.00	323,669.51	Aug-13-03	8.000%	CA - 83.33%	Paid Off - 360	Jan-31-03
790813 2			405,000.00	396,885.41	Aug-18-03	6.500%	NY - 90.00%	Paid Off - 180	Jan-29-03
791018 2			128,500.00	128,197.79	Aug-27-03	11.990%	CA - 57.11%	Paid Off - 360	Jan-30-03
792498 2			70,200.00	69,945.46	Aug-06-03	8.600%	AL - 90.00%	Paid Off - 360	Jan-23-03
793108 2			440,000.00	438,530.65	Aug-29-03	9.000%	CA - 80.00%	Paid Off - 360	Jan-29-03
793593 2			236,250.00	235,426.18	Aug-29-03	8.790%	CA - 75.00%	Paid Off - 360	Jan-22-03
795710 2			400,000.00	398,578.62	Aug-15-03	8.750%	CA - 68.61%	Paid Off - 360	Jan-22-03
798018 2			149,500.00	148,823.78	Aug-04-03	7.500%	CA - 65.00%	Paid Off - 360	Jan-28-03
802813 2			226,700.00	225,304.17	Aug-19-03	7.990%	CO - 55.29%	Paid Off - 360	Jan-30-03


					Page 20 of 25				© COPYRIGHT 2003 Deutsche Bank
	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates

	Realized Loss Report for September 25, 2003 Distribution


	Realized Loss Report - Collateral


COLLATERAL REALIZED LOSSES						GROUP 2	GROUP 1	TOTAL

	*Current*
	Number of Loans Liquidated					-	-	-
	Collateral Realized Loss/(Gain) Amount					-	-	-
	Net Liquidation Proceeds					-	-	-

	*Cumulative*
	Number of Loans Liquidated					-	-	-
	Collateral Realized Loss/(Gain) Amount					-	-	-
	Net Liquidation Proceeds					-	-	-

	Note: Collateral Realized Loss Amount may include adjustments to loans liquidated in prior periods.


	Cumulative Loss Percentage							0.00%


	Group 1						3 Months Moving Average
	Group 2

Collateral Loss Severity Approximation by Groups					Collateral Loss Severity Approximation


				Page 21 of 25				© COPYRIGHT 2003 Deutsche Bank
	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates

	Realized Loss Report for September 25, 2003 Distribution


	Realized Loss Report - Collateral


DEFAULT SPEEDS						GROUP 2	GROUP 1	TOTAL

	MDR					0.00%	0.00%	0.00%
	3 Months Avg MDR					0.00%	0.00%	0.00%
	12 Months Avg MDR
	Avg MDR Since Cut-off					0.00%	0.00%	0.00%

	CDR					0.00%	0.00%	0.00%
	3 Months Avg CDR					0.00%	0.00%	0.00%
	12 Months Avg CDR
	Avg CDR Since Cut-off					0.00%	0.00%	0.00%

	SDA					0.00%	0.00%	0.00%
	3 Months Avg SDA Approximation					0.00%	0.00%	0.00%
	12 Months Avg SDA Approximation
	Avg SDA Since Cut-off Approximation					0.00%	0.00%	0.00%

	Loss Severity Approximation for Current Period
	3 Months Avg Loss Severity Approximation
	12 Months Avg Loss Severity Approximation
	Avg Loss Severity Approximation Since Cut-off

	Group 1
	Group 2
CDR by Groups					Total CDR


SDA by Groups					Total SDA


				Page 22 of 25				© COPYRIGHT 2003 Deutsche Bank
	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates

	Realized Loss Report for September 25, 2003 Distribution


	Realized Loss Report - Collateral

	Group 1
	Group 2

CDR Avg since Cut-Off by Groups					Total CDR Avg since Cut-Off


SDA Avg since Cut-Off by Groups					Total SDA Avg since Cut-Off


COLLATERAL REALIZED LOSS CALCULATION METHODOLOGY
Monthly Default Rate (MDR): (Beg Principal Balance of Liquidated Loans)/(Total Beg Principal Balance)
Conditional Default Rate (CDR): 1-((1-MDR)^12)
SDA Standard Default Assumption: CDR/IF(WAS<61,MIN(30,WAS)0.02,MAX(0.03,MIN(30,WAS)0.02-0.0095*(WAS-60)))
Average MDR over period between nth month and mth month (AvgMDRn,m): [(1-MDRn) * (1-MDRn+1) .......(1-MDRm)]^(1/months in period n,m)
Average CDR over period between the nth month and mth month (AvgCDRn,m): 1-((1-AvgMDRn,m)^12)
Average SDA Approximation over period between the nth month and mth month:
AvgCDRn,m/IF(Avg WASn,m<61,MIN(30,Avg WASn,m)0.02,MAX(0.03,MIN(30,Avg WASn,m)0.02-0.0095*(Avg WASn,m-60)))
Average WASn,m: (WASn + WASn+1 +.......+ WASm )/(number of months in the period n,m)
Loss Severity Approximation for current period: sum(Realized Loss Amount)/sum(Beg Principal Balance of Liquidated Loans)
Average Loss Severity Approximation over period between nth month and mth month: Avg(Loss Severityn,m)
Note: Default rates are calculated since deal issue date and include realized gains and additional realized losses and gains from prior periods.
Dates correspond to distribution dates.

				Page 23 of 25				© COPYRIGHT 2003 Deutsche Bank


	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates

	Realized Loss Detail Report for September 25, 2003 Distribution


	Realized Loss Detail Report - Loans Liquidated During Current Distribution


SUMMARY						LOAN GROUP

Total Loan Count = 0						Loan Group 1 = Group 1 Group
Total Original Principal Balance = 0.00						Loan Group 2 = Group 2 Group
Total Prior Principal Balance = 0.00
Total Realized Loss Amount = 0.00
Total Net Liquidation Proceeds = 0.00
Note: Total Realized Loss Amount may include adjustments to loans liquidated in prior periods.

Loan Number			Original	Prior		Current	State &
&		Loan	Principal	Principal	Realized	Note	LTV at	Original	Origination
Loan Group		Status	Balance	Balance	Loss/(Gain)	Rate	Origination	Term	Date
SPACE INTENTIONALLY LEFT BLANK


					Page 24 of 25				© COPYRIGHT 2003 Deutsche Bank
	Morgan Stanley Dean Witter Capital I Inc. 2003-NC4
	Mortgage Pass-Through Certificates

	Triggers, Adj. Rate Cert. and Miscellaneous Report for September 25, 2003 Distribution


	Triggers, Adj. Rate Cert. and Miscellaneous Report


TRIGGER EVENTS						GROUP 2	GROUP 1	TOTAL

	Has a Stepdown Date occurred?							No

	Does Trigger Event exist?							No

	1. Does (A) equal or exceed (B)?							No
	(A) 60+ Day Delinq % (quotient of (x) over (y))							1.08%
	(x) Rolling 3-month avg. of 60+ Day Delinq. Loans							7,644,013.40
	(y) Stated Principal Balance							706,355,852.42
	(B) 40% of Sr. Enhancement Percentage							7.56%

	2. Does (A) exceed (B)?							No
	(A) Realized Loss % (quotient of (x) over (y))							0.00%
	(x) Agg. Realized Losses to date							0.00
	(y) Cut-off Date Pool Principal Balance							756,263,897.60
	(B) Applicable Percentage							100.00%


	Senior Enhancement Percentage (Prior)							18.89%



ADJUSTABLE RATE CERTIFICATE INFORMATION						GROUP 2	GROUP 1	TOTAL
SPACE INTENTIONALLY LEFT BLANK


ADDITIONAL INFORMATION						GROUP 2	GROUP 1	TOTAL

	Basis Risk Carry Forward Amount							0.00


				Page 25 of 25				© COPYRIGHT 2003 Deutsche Bank

MORGAN STANLEY DEAN WITTER CAPITAL I INC CERT SER 2003-NC4 8-K