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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 9731
Portland, ME 04104

FEDEX or courier only:
National Government Services, Inc.
Attn: Cost Report Unit
2 Gannett Drive
South Portland, ME 04106
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
Attn: Lockbox #809366
5635 South Archer Avenue
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
Attn: Lockbox #809199
5635 South Archer Avenue
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.
P.O. Box 7149
Indianapolis, IN 46207-7149
Provider Enrollment
(CMS-855 and EFT forms)
IL, MN, WI National Government Services, Inc.
P.O. Box 6474
Indianapolis, IN 46206-6474
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.

P.O. Box Mailing Addresses
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