P.O. Box Mailing Addresses
| Business Function | State | Mailing Address |
|---|---|---|
| Additional Documentation Requests | CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. P.O. Box 7108 Indianapolis, IN 46207-7108 |
| Additional Documentation Requests | IL, MN, WI | National Government Services, Inc. Attn: Medical Review P.O. Box 6474 Indianapolis, IN 46206-6474 |
| ASCA Waiver Request Forms | All | National Government Services, Inc. Attn: ASCA P.O. Box 7022 Indianapolis, IN 46207-7022 |
| Appeals | CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. Appeals Department P.O. Box 7111 Indianapolis, IN 46207-7111 |
| Appeals | IL, MN, WI | National Government Services, Inc. Appeals Department P.O. Box 6474 Indianapolis, IN 46206-6474 |
| Audit and Reimbursement (cost reports) |
CT, IL, MA, ME, MN, NH, NY, RI, VT, WI |
National Government Services, Inc. Attn: Cost Report Unit P.O. Box 7040 Indianapolis, IN 46207-7040 FEDEX or courier only: National Government Services, Inc. Attn: Cost Report Unit 220 Virginia Ave Indianapolis, IN 46204 |
| Bank Lockbox (MSP and non-MSP) |
CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. P.O. Box 809366 Chicago, IL 60680-9366 U.S. Bank P.O. Box 809366 National Government Services, Inc. 5635 South Archer Avenue Unit #1 Chicago, IL 60638 |
| Bank Lockbox (MSP and non-MSP) |
IL, MN, WI |
National Government Services, Inc. P.O. Box 809199 Chicago, IL 60680-9199 U.S. Bank P.O. Box 809199 National Government Services, Inc. 5635 South Archer Avenue Unit #1 Chicago, IL 60638 |
| Claims (UB-04 forms) |
IL, MN, WI | National Government Services, Inc. P.O. Box 6474 Indianapolis, IN 46206-6474 |
| Claims (UB-04 forms) |
CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. P.O. Box 7091 Indianapolis, IN 46207-7091 |
| Congressional Correspondence | All | National Government Services, Inc. P.O. Box 6131 Indianapolis, IN 46206-6131 |
| EDI Customer Support (electronic billing forms and inquiries) |
CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. P.O. Box 7111 Indianapolis, IN 46207-7165 |
| EDI Customer Support (electronic billing forms and inquiries) |
IL, MN, WI | National Government Services, Inc. Attn: EDI P.O. Box 6474 Indianapolis, IN 46206-6474 |
| FOIA Inquiries | All | National Government Services, Inc. P.O. Box 6131 Indianapolis, IN 46206-6131 |
| Medical Policy (policy/local coverage determination reconsideration requests) |
All | National Government Services, Inc. Medical Policy Unit Attn: LCD Reconsideration Requests P.O. Box 7108 Indianapolis, IN 46207-7108 |
| Medical Review (documents/medical records and responses to ADR letters) |
CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. P.O. Box 7108 Indianapolis, IN 46207-7108 Fax: 315-442-4390 |
| Medical Review (documents/medical records and responses to ADR letters) |
IL, MN, WI | National Government Services, Inc. Attn: Medical Review P.O. Box 6474 Indianapolis, IN 46206-6474 Fax: 315-442-4154 |
| Medicare Secondary Payer/Refunds | IL, MN, WI | National Government Services, Inc Attn: MSP Inquiries P.O. Box 6474 Indianapolis, IN 46206-6474 |
| ORU and Credit Balance Reports | CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. Part A ORU/Credit Balance Reports P.O. Box 7071 Indianapolis, IN 46207-7071 Fax Numbers: CT, NY: 315-442-4258 ME, MA, RI, RHHI: 315-442-4009 NH, VT: 315-442-4008 |
| ORU and Credit Balance Reports | IL, MN, WI | National Government Services, Inc Attn: ORU/Credit Balance P.O. Box 6474 Indianapolis, IN 46206-6474 Fax: 315-442-4287 |
| Provider Enrollment (CMS-855 and EFT forms) |
CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. Attention: Provider Enrollment P.O. Box 7149 Indianapolis, IN 46207-7149 |
| Provider Enrollment (CMS-855 and EFT forms) |
IL, MN, WI | National Government Services, Inc. Attention: Provider Enrollment P.O. Box 6474 Indianapolis, IN 46206-6474 |
| Provider Enrollment Overnight Address (new EFT [CMS-588] or [CMS-855]) |
CT, MA, ME, NY, RI, VT, IL, MN, WI |
National Government Services, Inc. Attention: Provider Enrollment 220 Virginia Ave. Indianapolis, IN 46204 |
| Provider Outreach and Education (seminar payments and publication orders) | CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. P.O. Box 7149 Indianapolis, IN 46207-7149 |
| Provider Outreach and Education (seminar payments and publication orders) | IL, MN, WI | National Government Services, Inc. Attn: Provider Outreach and Education P.O. Box 6474 Indianapolis, IN 46206-6474 |
| Provider Written General Inquiries | CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. Attn: Provider Written General Inquiries P.O. Box 6189 Indianapolis, IN 46206-6189 |
| Provider Written General Inquiries | IL, MN, WI | National Government Services, Inc Attn: Provider Written General Inquiries P.O. Box 6474 Indianapolis, IN 46206-6474 |
| Redeterminations | IL, MN, WI | National Government Services, Inc Attn: Appeals P.O. Box 6474 Indianapolis, IN 46206-6474 |
There has been no change to the P.O. Boxes used for remitting payment for Medicare Trust Fund debts. Please refer to addresses found on demand letters and overpayment recovery forms to make payments on debts to the Medicare Trust Fund.
We encourage you to send business mail via the United States Postal Service Office (USPS). The USPS delivers to specific Post Office Boxes allowing for faster receipt, timely processing, and enhanced service to you.
Revised 7/3/2024
P.O. Box Mailing Addresses
| Business Function | Mailing Address |
|---|---|
| Additional Development Requests | National Government Services, Inc. Attn: Medical Review P.O. Box 6474 Indianapolis, IN 46206-6474 |
| ASCA Waiver Request Forms | National Government Services, Inc. Attn: ASCA P.O. Box 7022 Indianapolis, IN 46207-7022 |
| Appeals | National Government Services, Inc. Appeals Department P.O. Box 6474 Indianapolis, IN 46206-6474 |
| Audit and Reimbursement (cost reports) |
National Government Services, Inc. Attn: Cost Report Unit P.O. Box 7040 Indianapolis, IN 46207-7040 FEDEX or courier only: National Government Services, Inc. Attn: Cost Report Unit 220 Virginia Ave Indianapolis, IN 46204 |
| Bank Lockbox (JK) (MSP and non-MSP) |
National Government Services, Inc. P.O. Box 809366 Chicago, IL 60680-9366 U.S. Bank P.O. Box 809366 National Government Services, Inc. 5635 South Archer Avenue Unit #1 Chicago, IL 60638 |
| Bank Lockbox (J6) (MSP and non-MSP) |
National Government Services, Inc. P.O. Box 809199 Chicago, IL 60680-9199 U.S. Bank P.O. Box 809199 National Government Services, Inc. 5635 South Archer Avenue Unit #1 Chicago, IL 60638 |
| Claims (UB-04 forms) |
National Government Services, Inc. P.O. Box 6474 Indianapolis, IN 46206-6474 |
| Congressional Correspondence | National Government Services, Inc. P.O. Box 6131 Indianapolis, IN 46206-6131 |
| EDI Customer Support (electronic billing forms and inquiries) |
National Government Services, Inc. Attn: EDI P.O. Box 6474 Indianapolis, IN 46206-6474 |
| FOIA Inquiries | National Government Services, Inc. P.O. Box 6131 Indianapolis, IN 46206-6131 |
| Medical Policy (policy/LCD reconsideration requests) |
National Government Services, Inc. Medical Policy Unit Attn: LCD Reconsideration Requests P.O. Box 7108 Indianapolis, IN 46207-7108 |
| Medical Review (documents/medical records and responses to ADR letters) |
National Government Services, Inc. Attn: Medical Review P.O. Box 6474 Indianapolis, IN 46206-6474 Fax: 315-442-4154 |
| Medicare Secondary Payer/Refunds | National Government Services, Inc Attn: MSP Inquiries P.O. Box 6474 Indianapolis, IN 46206-6474 |
| ORU and Credit Balance Reports | National Government Services, Inc Attn: ORU/Credit Balance P.O. Box 6474 Indianapolis, IN 46206-6474 Fax: 315-442-4287 |
| Provider Enrollment (CMS-855 and EFT forms) |
National Government Services, Inc. Attention: Provider Enrollment P.O. Box 6474 Indianapolis, IN 46206-6474 |
| Provider Enrollment Overnight Address |
National Government Services, Inc. Attention: Provider Enrollment 220 Virginia Ave Indianapolis, IN 46204 |
| Provider Outreach and Education (seminar payments and publication orders) | National Government Services, Inc. Attn: Provider Outreach and Education P.O. Box 6474 Indianapolis, IN 46206-6474 |
| Provider Written General Inquiries | National Government Services, Inc Attn: Provider Written General Inquiries P.O. Box 6474 Indianapolis, IN 46206-6474 |
| Redeterminations | National Government Services, Inc Attn: Appeals P.O. Box 6474 Indianapolis, IN 46206-6474 |
There has been no change to the P.O. Boxes used for remitting payment for Medicare Trust Fund debts. Please refer to addresses found on demand letters and overpayment recovery forms to make payments on debts to the Medicare Trust Fund.
We encourage you to send business mail via the USPS. The USPS delivers to specific Post Office Boxes allowing for faster receipt, timely processing, and enhanced service to you.
Revised 7/3/2024
P.O. Box Mailing Addresses
| Business Function | State | Mailing Address |
|---|---|---|
| Administration Simplification Compliance Act Waiver Request Forms | All states | National Government Services, Inc. Attn: ASCA P.O. Box 7022 Indianapolis, IN 46250-7022 |
| Appeals | AK, AZ, CA, HI, ID, NV, OR, WA, American Samoa, Guam, Northern Mariana Island, MI, MN, NJ, NY, WI, Puerto Rico, Virgin Islands | National Government Services, Inc. Appeals Department P.O. Box 6474 Indianapolis, IN 46206-6474 |
| Appeals | CT, MA, ME, NH, RI, VT | National Government Services, Inc. Appeals Department P.O. Box 7111 Indianapolis, IN 46207-7111 |
| Audit and Reimbursement (cost report - HH+H) |
CT, IL, MA, ME, MN, NH, RI, VT, AK, AZ, CA, HI, ID, NV, OR, WA, American Samoa, Guam, Northern Mariana Island, MI, MN, NJ, NY, WI, Puerto Rico, Virgin Islands | National Government Services, Inc. Attn: Cost Report Unit P.O. Box 7040 Indianapolis, IN 46207-7040 FEDEX or courier only: National Government Services, Inc. Attn: Cost Report Unit 220 Virginia Ave Indianapolis, IN 46204 |
| Bank Lockbox (MSP and non-MSP) |
AK, AZ, CA, HI, ID, NV, OR, WA, American Samoa, Guam, Northern Mariana Island | National Government Services, Inc. 00454 CA Part A Non-MSP P.O. Box 809199 Chicago, IL 60680-9311 U.S. Bank P.O. Box 809199 National Government Services, Inc. 5635 South Archer Avenue Unit #1 Chicago, IL 60638 |
| Bank Lockbox (MSP and non-MSP) |
CT, MA, ME, NH, RI, VT | National Government Services, Inc. P.O. Box 809366 Chicago, IL 60680-9366 U.S. Bank P.O. Box 809366 National Government Services, Inc. 5635 South Archer Avenue Unit #1 Chicago, IL 60638 |
| Bank Lockbox (MSP and non-MSP) |
MI, MN, NJ, NY, WI, Puerto Rico, Virgin Islands | National Government Services, Inc. 00450 WI Part A Non-MSP P.O. Box 809199 Chicago, IL 60680-9199 U.S. Bank P.O. Box 809199 National Government Services, Inc. 5635 South Archer Avenue Unit #1 Chicago, IL 60638 |
| Claims (UB-04 forms) |
AK, AZ, CA, HI, ID, MI, MN, NV, OR, WA, WI, American Samoa, Guam, Northern Mariana Islands, Puerto Rico, Virgin Islands | National Government Services, Inc. P.O. Box 7150 Indianapolis, IN 46207-7150 |
| Claims (UB-04 forms) |
CT, MA, ME, NH, RI, VT | National Government Services, Inc. P.O. Box 7091 Indianapolis, IN 46207-7091 |
| Congressional Correspondence | All states | National Government Services, Inc. P.O. Box 6131 Indianapolis, IN 46206-6131 |
| Electronic Data Interchange (EDI) Customer Support (electronic billing forms and inquiries) |
AK, AZ, CA, HI, ID, MI, MN, NV, OR, WA, WI, American Samoa, Guam, Northern Mariana Islands, Puerto Rico, Virgin Islands | National Government Services, Inc. P.O. Box 7149 Indianapolis, IN 46207-7149 |
| EDI Customer Support (electronic billing forms and inquiries) |
CT, MA, ME, NH, RI, VT | National Government Services, Inc. P.O. Box 7111 Indianapolis, IN 46207-7111 |
| Freedom of Information Act (FOIA) Inquiries | All states | National Government Services, Inc. P.O. Box 6131 Indianapolis, IN 46206-6131 |
| Medical Review (documents/medical records and responses to ADR letters) |
CA, MI, WI, AK, AZ, HI, ID, MN, NV, OR, WA, American Samoa, Guam, Northern Mariana Islands, Puerto Rico, Virgin Islands, New Jersey, New York | National Government Services, Inc. P.O. Box 6474 Indianapolis, IN 46206-6474 Fax: 315-442-4154 |
| Medical Review (documents/medical records and responses to ADR letters) |
CT, MA, ME, NH, RI, VT | National Government Services, Inc. P.O. Box 7108 Indianapolis, IN 46207-7108 Fax: 315-442-4390 |
| Medical Review (documents/medical records and responses to ADR letters) |
New York TPL | National Government Services, Inc. P.O. Box 7149 Indianapolis, IN 46207-7149 Fax: 414-459-2936 |
| Medical Policy (policy/local coverage determination reconsideration requests) |
All states | National Government Services, Inc. Medical Policy Unit Attention: LCD Reconsideration Requests P.O. Box 7108 Indianapolis, IN 46207-7108 |
| MSP Inquiries/ORU Requests (other than those sent to MSP regional carrier) |
All states | National Government Services, Inc. P.O. Box 7149 Indianapolis, IN 46207-7149 |
| ORU and Credit Balance Reports | All states | National Government Services, Inc. Part A ORU/Credit Balance Reports P.O. Box 7071 Indianapolis, IN 46207-7071 Fax: 315-442-4287 |
| Provider Enrollment (CMS-855 and EFT forms) |
AK, AZ, CA, HI, ID, MI, MN, NJ, NV, NY, OR, WA, WI, American Samoa, Guam, Northern Mariana Islands, Puerto Rico, Virgin Islands | National Government Services, Inc. Attention: Provider Enrollment P.O. Box 6474 Indianapolis, Indiana 46206-6474 |
| Provider Enrollment Overnight Address (new EFT [CMS-588] or [CMS-855]) |
AK, AZ, CA, HI, ID, MI, MN, NJ, NV, NY, OR, WA, WI, American Samoa, Guam, Northern Mariana Islands, Puerto Rico, Virgin Islands | National Government Services, Inc. Attention: Provider Enrollment 220 Virginia Ave Indianapolis, IN 46204 |
| Provider Outreach and Education (seminar payments and publication orders) |
All states | National Government Services, Inc. P.O. Box 7149 Indianapolis, IN 46207-7149 |
| Provider Written General Inquiries | CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. Attn: Provider Written General Inquiries P.O. Box 6189 Indianapolis, IN 46206-6189 |
| Provider Written General Inquiries | AK, AZ, CA, HI, ID, MI, MN, NV, OR, WA, WI, American Samoa, Guam, Northern Mariana Islands, Puerto Rico, Virgin Islands | National Government Services, Inc. Attn: Provider Written General Inquiries P.O. Box 6474 Indianapolis, IN 46206-6474 |
There has been no change to the P.O. Boxes used for remitting payment for Medicare Trust Fund debts. Please refer to addresses found on demand letters and overpayment recovery forms to make payments on debts to the Medicare Trust Fund.
Revised 7/3/2024
P.O. Box Mailing Addresses
| Business Function | Mailing Address |
|---|---|
| Additional Development Requests | National Government Services, Inc. Attn: Medical Review P.O. Box 6474 Indianapolis, IN 46206-6474 |
| ASCA Waiver Request Forms | National Government Services, Inc. Attn: ASCA P.O. Box 7022 Indianapolis, IN 46207-7022 |
| Appeals | National Government Services, Inc. Appeals Department P.O. Box 6474 Indianapolis, IN 46206-6474 |
| Audit and Reimbursement (cost reports) |
National Government Services, Inc. Attn: Cost Report Unit P.O. Box 7040 Indianapolis, IN 46207-7040 FEDEX or courier only: National Government Services, Inc. Attn: Cost Report Unit 220 Virginia Ave Indianapolis, IN 46204 |
| Bank Lockbox (JK) (MSP and non-MSP) |
National Government Services, Inc. P.O. Box 809366 Chicago, IL 60680-9366 U.S. Bank P.O. Box 809366 National Government Services, Inc. 5635 South Archer Avenue Unit #1 Chicago, IL 60638 |
| Bank Lockbox (J6) (MSP and non-MSP) |
National Government Services, Inc. P.O. Box 809199 Chicago, IL 60680-9199 U.S. Bank P.O. Box 809199 National Government Services, Inc. 5635 South Archer Avenue Unit #1 Chicago, IL 60638 |
| Claims (UB-04 forms) |
National Government Services, Inc. P.O. Box 6474 Indianapolis, IN 46206-6474 |
| Congressional Correspondence | National Government Services, Inc. P.O. Box 6131 Indianapolis, IN 46206-6131 |
| EDI Customer Support (electronic billing forms and inquiries) |
National Government Services, Inc. Attn: EDI P.O. Box 6474 Indianapolis, IN 46206-6474 |
| FOIA Inquiries | National Government Services, Inc. P.O. Box 6131 Indianapolis, IN 46206-6131 |
| Medical Policy (policy/LCD reconsideration requests) |
National Government Services, Inc. Medical Policy Unit Attn: LCD Reconsideration Requests P.O. Box 7108 Indianapolis, IN 46207-7108 |
| Medical Review (documents/medical records and responses to ADR letters) |
National Government Services, Inc. Attn: Medical Review P.O. Box 6474 Indianapolis, IN 46206-6474 Fax: 315-442-4154 |
| Medicare Secondary Payer/Refunds | National Government Services, Inc Attn: MSP Inquiries P.O. Box 6474 Indianapolis, IN 46206-6474 |
| ORU and Credit Balance Reports | National Government Services, Inc Attn: ORU/Credit Balance P.O. Box 6474 Indianapolis, IN 46206-6474 Fax: 315-442-4287 |
| Provider Enrollment (CMS-855 and EFT forms) |
National Government Services, Inc. Attention: Provider Enrollment P.O. Box 6474 Indianapolis, IN 46206-6474 |
| Provider Enrollment Overnight Address (new EFT [CMS-588] or [CMS-855] |
National Government Services, Inc. Attention: Provider Enrollment 220 Virginia Ave Indianapolis, IN 46204 |
| Provider Outreach and Education (seminar payments and publication orders) | National Government Services, Inc. Attn: Provider Outreach and Education P.O. Box 6474 Indianapolis, IN 46206-6474 |
| Provider Written General Inquiries | National Government Services, Inc Attn: Provider Written General Inquiries P.O. Box 6474 Indianapolis, IN 46206-6474 |
| Redeterminations | National Government Services, Inc Attn: Appeals P.O. Box 6474 Indianapolis, IN 46206-6474 |
There has been no change to the P.O. Boxes used for remitting payment for Medicare Trust Fund debts. Please refer to addresses found on demand letters and overpayment recovery forms to make payments on debts to the Medicare Trust Fund.
We encourage you to send business mail via the USPS. The USPS delivers to specific Post Office Boxes allowing for faster receipt, timely processing, and enhanced service to you.
Revised 7/3/2024
P.O. Box Mailing Addresses
| Business Function | State | Mailing Address |
|---|---|---|
| Additional Documentation Requests | CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. P.O. Box 7108 Indianapolis, IN 46207-7108 |
| Additional Documentation Requests | IL, MN, WI | National Government Services, Inc. Attn: Medical Review P.O. Box 6474 Indianapolis, IN 46206-6474 |
| ASCA Waiver Request Forms | All | National Government Services, Inc. Attn: ASCA P.O. Box 7022 Indianapolis, IN 46207-7022 |
| Appeals | CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. Appeals Department P.O. Box 7111 Indianapolis, IN 46207-7111 |
| Appeals | IL, MN, WI | National Government Services, Inc. Appeals Department P.O. Box 6474 Indianapolis, IN 46206-6474 |
| Audit and Reimbursement (cost reports) |
CT, IL, MA, ME, MN, NH, NY, RI, VT, WI | National Government Services, Inc. Attn: Cost Report Unit P.O. Box 7040 Indianapolis, IN 46207-7040 FEDEX or courier only: National Government Services, Inc. Attn: Cost Report Unit 220 Virginia Ave Indianapolis, IN 46204 |
| Bank Lockbox (MSP and non-MSP) |
CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. P.O. Box 809366 Chicago, IL 60680-9366 U.S. Bank P.O. Box 809366 National Government Services, Inc. 5635 South Archer Avenue Unit #1 Chicago, IL 60638 |
| Bank Lockbox (MSP and non-MSP) |
IL, MN, WI | National Government Services, Inc. P.O. Box 809199 Chicago, IL 60680-9199 U.S. Bank P.O. Box 809199 National Government Services, Inc. 5635 South Archer Avenue Unit #1 Chicago, IL 60638 |
| Claims (UB-04 forms) |
IL, MN, WI | National Government Services, Inc. P.O. Box 6474 Indianapolis, IN 46206-6474 |
| Claims (UB-04 forms) |
CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. P.O. Box 7091 Indianapolis, IN 46207-7091 |
| Congressional Correspondence | All | National Government Services, Inc. P.O. Box 6131 Indianapolis, IN 46206-6131 |
| EDI Customer Support (electronic billing forms and inquiries) |
CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. P.O. Box 7111 Indianapolis, IN 46207-7165 |
| EDI Customer Support (electronic billing forms and inquiries) |
IL, MN, WI | National Government Services, Inc. Attn: EDI P.O. Box 6474 Indianapolis, IN 46206-6474 |
| FOIA Inquiries | All | National Government Services, Inc. P.O. Box 6131 Indianapolis, IN 46206-6131 |
| Medical Policy (policy/local coverage determination reconsideration requests) |
All | National Government Services, Inc. Medical Policy Unit Attn: LCD Reconsideration Requests P.O. Box 7108 Indianapolis, IN 46207-7108 |
| Medical Review (documents/medical records and responses to ADR letters) |
CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. P.O. Box 7108 Indianapolis, IN 46207-7108 Fax: 315-442-4390 |
| Medical Review (documents/medical records and responses to ADR letters) |
IL, MN, WI | National Government Services, Inc. Attn: Medical Review P.O. Box 6474 Indianapolis, IN 46206-6474 Fax: 315-442-4154 |
| Medicare Secondary Payer/Refunds | IL, MN, WI | National Government Services, Inc Attn: MSP Inquiries P.O. Box 6474 Indianapolis, IN 46206-6474 |
| ORU and Credit Balance Reports | CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. Part A ORU/Credit Balance Reports P.O. Box 7071 Indianapolis, IN 46207-7071 Fax Numbers: CT, NY: 315-442-4258 ME, MA, RI, RHHI: 315-442-4009 NH, VT: 315-442-4008 |
| ORU and Credit Balance Reports | IL, MN, WI | National Government Services, Inc Attn: ORU/Credit Balance P.O. Box 6474 Indianapolis, IN 46206-6474 Fax: 315-442-4287 |
| Provider Enrollment (CMS-855 and EFT forms) |
CT, MA, ME, NH, RI, VT | National Government Services, Inc. Attention: Provider Enrollment P.O. Box 7149 Indianapolis, IN 46207-7149 |
| Provider Enrollment Overnight Address (new EFT [CMS-588] or [CMS-855]) |
CT, MA, ME, NH, RI, VT | National Government Services, Inc. Attention: Provider Enrollment 220 Virginia Ave Indianapolis, IN 46204 |
| Provider Outreach and Education (seminar payments and publication orders) | CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. P.O. Box 7149 Indianapolis, IN 46207-7149 |
| Provider Outreach and Education (seminar payments and publication orders) | IL, MN, WI | National Government Services, Inc. Attn: Provider Outreach and Education P.O. Box 6474 Indianapolis, IN 46206-6474 |
| Provider Written General Inquiries | CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. Attn: Provider Written General Inquiries P.O. Box 6189 Indianapolis, IN 46206-6189 |
| Provider Written General Inquiries | IL, MN, WI | National Government Services, Inc Attn: Provider Written General Inquiries P.O. Box 6474 Indianapolis, IN 46206-6474 |
| Redeterminations | IL, MN, WI | National Government Services, Inc Attn: Appeals P.O. Box 6474 Indianapolis, IN 46206-6474 |
There has been no change to the P.O. Boxes used for remitting payment for Medicare Trust Fund debts. Please refer to addresses found on demand letters and overpayment recovery forms to make payments on debts to the Medicare Trust Fund.
Revised 7/3/2024
P.O. Box Mailing Addresses
Please note the following county assignments for downstate and upstate New York.
Downstate: Bronx, Columbia, Delaware, Dutchess, Greene, Kings, Nassau, New York, Orange, Putnam, Queens County, Richmond, Rockland, Suffolk, Sullivan, Ulster, West Chester
Upstate: Albany, Allegany, Broome, Cattaraugus, Cayuga, Chautauqua, Chemung, Chenango, Clinton, Cortland, Erie, Essex, Franklin, Fulton, Genesee, Hamilton, Herkimer, Jefferson, Lewis, Livingston, Madison, Monroe, Montgomery, Niagara, Oneida, Onondaga, Ontario, Orleans, Oswego, Otsego, Rensselaer, Saratoga, Schenectady, Schoharie, Schuyler, Seneca, Steuben, St. Lawrence, Tioga, Tompkins, Warren, Washington, Wayne, Wyoming, Yates
| Business Function | State | Mailing Address |
|---|---|---|
| Additional Documentation Requests | CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. P.O. Box 7108 Indianapolis, IN 46207-7108 |
| Additional Documentation Requests | IL, MN, WI | National Government Services, Inc. Attn: Medical Review P.O. Box 6475 Indianapolis, IN 46206-6475 |
| ASCA Waiver Request Forms | All states | National Government Services, Inc. Attn: ASCA P.O. Box 7022 Indianapolis, IN 46207-7022 |
| Appeals (redeterminations and written reopenings) |
CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. P.O. Box 7111 Indianapolis, IN 46207-7111 |
| Appeals (redeterminations and written reopenings) |
IL, MN, WI | National Government Services, Inc. Attn: Appeals P.O. Box 6475 Indianapolis, IN 46206-6475 |
| Bank Lockbox (personal checks/MSP involvement and non-MSP) While we do not recommend sending refund checks overnight, if choosing an overnight mail service, (i.e., FedEx Express, UPS, or USPS), we ask that you use the following alternate mailing address: U.S. Bank P.O. Box 809645 National Government Services, Inc. 5635 S. Archer Avenue Unit #1 Chicago, IL 60638 |
CT, NY, MA, ME, NH, RI, VT | National Government Services, Inc. P.O. Box 809645 Chicago, IL 60680-9645 |
| Bank Lockbox (personal checks/MSP involvement and non-MSP) While we do not recommend sending refund checks overnight, if choosing an overnight mail service, (i.e., FedEx Express, United Parcel Service [UPS], or United States Postal Service [USPS]), we ask that you use the following alternate mailing address: U.S. Bank P.O. Box 809194 National Government Services, Inc. 5635 S. Archer Avenue Unit #1 Chicago, IL 60638 |
IL, MN, WI | National Government Services, Inc. NGS 06002 IL MN WI Part B P.O. Box 809194 Chicago, IL 60680-9194 |
| Beneficiary Submitted Part B Claims (CMS-1490S forms) |
CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. P.O. Box 6178 Indianapolis, IN 46206-6178 |
| Beneficiary Submitted Part B Claims (CMS-1490S forms) |
IL, MN, WI | National Government Services, Inc. P.O. Box 6475 Indianapolis, IN 46206-6475 |
| Claims (CMS-1500 forms) |
CT | National Government Services, Inc. P.O. Box 6185 Indianapolis, IN 46206-6185 |
| Claims (CMS-1500 forms) |
MA, ME, NH, NY (downstate counties), RI, VT | National Government Services, Inc. P.O. Box 6178 Indianapolis, IN 46206-6178 |
| Claims (CMS-1500 forms) |
NY (Queens county) | National Government Services, Inc. P.O. Box 6239 Indianapolis, IN 46206-6239 |
| Claims (CMS-1500 forms) |
NY (upstate counties) | National Government Services, Inc. P.O. Box 6189 Indianapolis, IN 46206-6189 |
| Claims (CMS-1500 forms) |
IL, MN, WI | National Government Services, Inc. Attn: Claims P.O. Box 6475 Indianapolis, IN 46206-6475 |
| Congressional Correspondence | All states | National Government Services, Inc. P.O. Box 6131 Indianapolis, IN 46206-6131 |
| EDI Customer Support (electronic billing forms and inquiries) |
CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. P.O. Box 7111 Indianapolis, IN 46207-7165 |
| EDI Customer Support (electronic billing forms and inquiries) |
IL, WI, MN | National Government Services, Inc. Attn: EDI P.O. Box 6475 Indianapolis, IN 46206-6475 |
| FOIA Inquiries | All states | National Government Services, Inc. P.O. Box 6131 Indianapolis, IN 46206-6131 |
| Health Professional Shortage Area Correspondence (with the exception of HPSA appeals) |
All states | National Government Services, Inc. P.O. Box 7071 Indianapolis, IN 46207-7071 |
| Medical Policy (local coverage determination reconsideration requests) |
All states | National Government Services, Inc. Medical Policy Unit Attn: LCD Reconsideration Requests P.O. Box 7108 Indianapolis, IN 46207-7108 |
| Medical Review (documents/medical records and responses to additional development request [ADR] letters) |
CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. P.O. Box 7108 Indianapolis, IN 46207-7108 Fax: 717-565-3783 |
| Medical Review (documents/medical records and responses to ADR letters) |
IL, MN, WI | National Government Services, Inc.Attn: Medical Review P.O. Box 6475 Indianapolis, IN 46206-6475 Fax: 317-595-4364 |
| ORU (returned Medicare issued checks) |
CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. P.O. Box 6178 Indianapolis, IN 46206-6178 |
| ORU (returned Medicare issued checks) |
IL, MN, WI | National Government Services, Inc. Attn: ORU/Credit Balance P.O. Box 6475 Indianapolis, IN 46206-6475 |
| Provider Enrollment (new EFT [CMS-588] or [CMS-855]) |
CT, MA, ME, NH, NY, RI, VT |
National Government Services, Inc. |
| Provider Enrollment (new EFT [CMS-588] or [CMS-855]) |
IL, MN, WI | National Government Services, Inc. Attention: Provider Enrollment P.O. Box 6475 Indianapolis, IN 46206-6475 |
| Provider Enrollment Overnight Address (new EFT [CMS-588] or [CMS-855]) |
CT, MA, ME, NY, RI, VT, IL, MN, WI | National Government Services, Inc. Attention: Provider Enrollment 220 Virginia Ave Indianapolis, IN 46204 |
| Provider Outreach and Education (seminar payments and publication orders) |
CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. P.O. Box 7149 Indianapolis, IN 46207-7149 |
| Provider Written General Inquiries | CT, MA, ME, NH, NY, RI, VT | National Government Services, Inc. P.O. Box 6189 Indianapolis, IN 46206-6189 |
| Provider Written General Inquiries | IL, MN, WI | National Government Services, Inc. Attn: Written Inquiries P.O. Box 6475 Indianapolis, IN 46206-6475 |
| Redeterminations | IL, MN, WI | National Government Services, Inc. Attn: Appeals P.O. Box 6475 Indianapolis, IN 46206-6475 |
* There has been no change to the P.O. boxes used for remitting payment for Medicare Trust Fund debts. Please refer to addresses found on demand letters and overpayment recovery forms to make payments on debts to the Medicare Trust Fund.
We encourage you to send business mail via the USPS. The USPS delivers to specific post office boxes allowing for faster receipt, timely processing and enhanced service to you.