Contact Claims
Need to reach out? Call our provider contact center or submit an online inquiry for general claims assistance. First Coast's representatives are available Monday-Friday, 8 a.m.- 4 p.m. ET/CT* (excluding holidayclosings and trainingdates).

Florida / U.S. Virgin Islands:
888-644-4112
TTY: 711
Fax: 904-361-0318
Florida / U.S. Virgin Islands:
866-454-9007
TTY: 711
Fax: 904-361-0318
Puerto Rico
877-908-8433
TTY: 711
Fax: 904-361-0318
Puerto Rico:
877-715-1921
TTY: 711
Fax: 904-361-0318
*CT hours only apply to FL providers
General claims / ADRs

Mailing address: Florida
First Coast Service Options
Medicare Part A Claims
P.O. Box 2006
Mechanicsburg, PA 17055-0733
Mailing address: Florida
First Coast Service Options
Part B Claims and Claims ADR FL
P.O. Box 2009
Mechanicsburg, PA 17055-0709
Mailing address: Puerto Rico / U.S. Virgin Islands
First Coast Service Options
Medicare Part A Claims PR/VI
P.O. Box 2001
Mechanicsburg, PA 17055-0733
Mailing address: Puerto Rico / U.S. Virgin Islands
First Coast Service Options
Part B Claims and Claims ADR PR/VI
P.O. Box 2004
Mechanicsburg, PA 17055-0704
Additional mailing addresses
Priority mailing address
First Coast Service Options
Medicare Claims Department
2020 Technology Parkway Suite 100
Mechanicsburg, PA 17050-9419
Post-pay medical review
First Coast Service Options Inc.
Part A and Part B Post Pay Medical Review
P.O. Box 3701
Mechanicsburg, PA 17055-1860
Credit balance report (CMS-838)
First Coast Service Options
Attn: Cashier
P.O. Box 3162
Mechanicsburg, PA 17055-1837
Additional claims information
- Electronic claims submission
- Claims resources
- Overpayments
- Credit balance report (CMS-838)
- Railroad providers Palmetto RRB Specialty MAC
- Durable medical equipment, prosthetics, orthotics, and supplies (DMEPOS) CGS Medicare
- Home health / hospice Palmetto GBA