Use current mailing addresses to prevent returned mail

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Home ► Billing news ► Use current mailing addresses to prevent returned mail

Last Modified: 7/18/2022 Location: FL, PR, USVI Business: Part A, Part B

Use current mailing addresses to prevent returned mail

In September 2020, First Coast transitioned our mailing P.O. Box addresses from Jacksonville, Florida, to Mechanicsburg, Pennsylvania. Starting in September 2021, we’re no longer forwarding mail received at the old addresses. Please ensure you are sending First Coast correspondence to the proper address.

Please visit the Contact Center page on our website for the current and correct mailing addresses. Mail received in the old Jacksonville P.O. Boxes will be returned.

Forms were also updated last year with the proper addresses. You should always download the most current forms from the First Coast website for accurate submission and mailing information.

Note: First Coast’s headquarters remain in Jacksonville. Mail services only were transitioned to Mechanicsburg.

The new mailing addresses that became effective in September 2020 included the following areas:

New address	Old address
JN Part A and B Medical Affairs and FOIA requests P.O. Box 3425 Mechanicsburg, PA 17055-1825	P.O. Box 2078 Jacksonville, FL 32231 P.O. Box 45073 Jacksonville, FL 32232 P.O. Box 45092 Jacksonville, FL 32232 P.O. Box 45096 Jacksonville, FL 32232
JN Redeterminations, Inquiries, General Correspondence, Congressional FL Part A/B P.O. Box 3411 Mechanicsburg, PA 17055-1850	P.O. Box 2360 Jacksonville, FL 32231 P.O. Box 45001 Jacksonville, FL 32232 P.O. Box 45020 Jacksonville, FL 32232 P.O. Box 45053 Jacksonville, FL 32232 P.O. Box 45270 Jacksonville, FL 32232
Part B Claims and Claims ADR FL P.O. Box 2009 Mechanicsburg, PA 17055-0709	P.O. Box 2525 Jacksonville, FL 32203 P.O. Box 2537 Jacksonville, FL 32203 P.O. Box 44067 Jacksonville, FL 32231 P.O. Box 44071 Jacksonville, FL 32231 P.O. Box 44078 Jacksonville, FL 32231 P.O. Box 44099 Jacksonville, FL 32231 P.O. Box 44117 Jacksonville, FL 32231 P.O. Box 45031 Jacksonville, FL 32232 P.O. Box 45236 Jacksonville, FL 32232 P.O. Box 45263 Jacksonville, FL 32232
Part A Claims and Claims ADR FL P.O. Box 2006 Mechanicsburg, PA 17055-0733	P.O. Box 2711 Jacksonville, FL 32231
JN Part B Florida Debt Recovery and Check Mail P.O. Box 3092 Mechanicsburg, PA 17055-1810	P.O. Box 44094 Jacksonville, FL 32231 P.O. Box 44141 Jacksonville, FL 32231 P.O. Box 44179 Jacksonville, FL 32231 P.O. Box 44187 Jacksonville, FL 32231
Part A and Part B Post Pay Medical Review P.O. Box 3701 Mechanicsburg, PA 17055-1860	P.O. Box 44159 Jacksonville, FL 32231 P.O. Box 44288 Jacksonville, FL 32231
Part A Claims and Claims ADR PR/VI P.O. Box 2001 Mechanicsburg, PA 17055-0707	P.O. Box 45003 Jacksonville, FL 32232 P.O. Box 45071 Jacksonville, FL 32232
JN Part A Florida, Puerto Rico, and Virgin Islands Debt Recovery and Check Mail P.O. Box 3162 Mechanicsburg, PA 17055-1837	P.O. Box 45011 Jacksonville, FL 32232
JN Part B Florida, Puerto Rico, and Virgin Islands Debt Recovery and Check Mail P.O. Box 3121 Mechanicsburg, PA 17055-1831	P.O. Box 45013 Jacksonville, FL 32232 P.O. Box 45040 Jacksonville, FL 32232
JN Redeterminations, Inquiries, General Correspondence, Congressional PR/VI Part A/B P.O. Box 3412 Mechanicsburg, PA 17055-1851	P.O. Box 45015 Jacksonville, FL 32232 P.O. Box 45024 Jacksonville, FL 32232 P.O. Box 45028 Jacksonville, FL 32232 P.O. Box 45056 Jacksonville, FL 32232 P.O. Box 45091 Jacksonville, FL 32232 P.O. Box 45097 Jacksonville, FL 32232
Part B Claims and Claims ADR PR/VI P.O. Box 2004 Mechanicsburg, PA 17055-0704	P.O. Box 45036 Jacksonville, FL 32232 P.O. Box 45098 Jacksonville, FL 32232
JN Part A and B Complaint Processing Unit P.O. Box 3419 Mechanicsburg, PA 17055-1859	P.O. Box 45087 Jacksonville, FL 32232

First Coast Service Options (First Coast) strives to ensure that the information available on our provider website is accurate, detailed, and current. Therefore, this is a dynamic site and its content changes daily. It is best to access the site to ensure you have the most current information rather than printing articles or forms that may become obsolete without notice.