First Coast Service Options (MAC JN)

Denials, appeals and grievances

Find appeal teams, faxes and mailing addresses. Use the denial notice to confirm the appeal level, filing deadline and recipient.

fax appeals

Part A redeterminations fax (FL, PR, USVI)

Official page read
Phone

No phone listed for this route

Fax

904-361-0593

Published hours

Not published in this record

Product, plan and location

medicare
Florida · Puerto Rico · US Virgin Islands

Mailing address
First Coast Service Options JN Redeterminations Part A/B P.O. Box 3411 Mechanicsburg, PA 17055-1850

Florida redetermination requests (Part A and Part B)

Fax for JN Part A first-level appeals (redeterminations); the SPOT portal is also accepted. Florida mail: First Coast Service Options, JN Redeterminations Part A/B, P.O. Box 3411, Mechanicsburg, PA 17055-1850. Note: the appeals page shows the FL Part A phone as 888-644-4112, which differs from the contact center page (888-664-4112); the phone was not used.

View source ↗ · Source checked 2026-10-25

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fax appeals

Part B redeterminations fax (FL, PR, USVI)

Official page read
Phone

No phone listed for this route

Fax

904-361-0595

Published hours

Not published in this record

Product, plan and location

medicare
Florida · Puerto Rico · US Virgin Islands

Mailing address
First Coast Service Options JN Redeterminations Part A/B P.O. Box 3412 Mechanicsburg, PA 17055-1851

Puerto Rico / U.S. Virgin Islands redetermination requests (Part A and Part B)

Fax for JN Part B first-level appeals (redeterminations); SPOT portal also accepted. Puerto Rico/USVI mail: First Coast Service Options, JN Redeterminations Part A/B, P.O. Box 3412, Mechanicsburg, PA 17055-1851.

View source ↗ · Source checked 2026-10-25

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Find appeal teams, faxes and mailing addresses. Use the denial notice to confirm the appeal level, filing deadline and recipient.

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  • Denial notice, remittance and reason codes
  • Previous appeal confirmation and decision
  • Supporting evidence and any required authorization to represent the member

Questions to resolve

  • Is this a claim correction, provider dispute or member appeal?
  • What deadline and submission channel apply to this case?
  • How can the office confirm receipt and track the decision?

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