First Coast Medicare provider portal, phone and payer ID quick facts
| Provider resource entry point | https://medicare.fcso.com |
|---|---|
| Payer contact reference | 1-877-602-8816Choose the First Coast provider contact for Florida/USVI or Puerto Rico and Medicare Part A or Part B using the official claims contact matrix. |
| Claims payer ID | No single all-product identifier established in this registry; see source findings and verify the member product and transaction separately |
| Eligibility payer ID | No single all-product identifier established in this registry; see source findings and verify the member product and transaction separately |
| ERA payer ID | No single all-product identifier established in this registry; see source findings and verify the member product and transaction separately. Clearinghouse-specific: This registry has not established one national ERA payer ID for First Coast Medicare. ERA enrollment and 835 routing are clearinghouse- and product-specific; verify in the payer portal or clearinghouse payer list before enrollment. |
| Timely filing | One calendar year from the applicable service date |
| Prior auth route | Verify the current product policy and delegated reviewer; X12 278 support is not established by a portal link |
| Last reviewed | 2026-04-23 |
- Choose the First Coast provider contact for Florida/USVI or Puerto Rico and Medicare Part A or Part B using the official claims contact matrix.
- Medicare claims must meet the one-calendar-year filing rule. First Coast uses the through-date for Part A span claims and from-date for Part B; receipt and limited CMS exceptions apply.
- This registry has not established a payer-specific appeal ladder for First Coast Medicare. Use the denial notice, plan document, provider agreement, or jurisdictional rule to assign the correct route and deadline. Missing registry evidence does not mean appeal rights are unavailable.
- This registry has not established one national ERA payer ID for First Coast Medicare. ERA enrollment and 835 routing are clearinghouse- and product-specific; verify in the payer portal or clearinghouse payer list before enrollment.
First Coast Medicare at a glance
| Legal name | First Coast Service Options, Inc. |
|---|---|
| Also known as | First Coast, FCSO |
| Category | Government program |
| Parent organization | GuideWell Mutual Holding |
| Claims payer ID | No single all-product identifier established in this registry; see source findings and verify the member product and transaction separately |
| Eligibility (270/271) payer ID | No single all-product identifier established in this registry; see source findings and verify the member product and transaction separately |
| ERA (835) payer ID | No single all-product identifier established in this registry; see source findings and verify the member product and transaction separately. Clearinghouse-specific: This registry has not established one national ERA payer ID for First Coast Medicare. ERA enrollment and 835 routing are clearinghouse- and product-specific; verify in the payer portal or clearinghouse payer list before enrollment. |
| NAIC company code | Not established in this registry |
| States covered | Nationwide (50 states) |
| Provider resource entry point | https://medicare.fcso.com |
| Provider phone | 1-877-602-8816Choose the First Coast provider contact for Florida/USVI or Puerto Rico and Medicare Part A or Part B using the official claims contact matrix. |
Always verify claims-routing details against the member ID card and the payer's current EDI companion guide before submission.
Timely filing & appeals for First Coast Medicare
Medicare claims must meet the one-calendar-year filing rule. First Coast uses the through-date for Part A span claims and from-date for Part B; receipt and limited CMS exceptions apply.
| Submission type | Window |
|---|---|
| Initial claim reference | One calendar year from the applicable service date |
| Out-of-network initial claim | Verify the member's plan and applicable out-of-network rules |
| Secondary / coordination of benefits | Verify the allowed window and start event; a primary EOB does not automatically restart filing |
| Corrected claim | Verify correction instructions; do not substitute an appeal deadline |
| Reconsideration / appeal | Use the applicable denial or decision notice and the process below |
This registry has not established a payer-specific appeal ladder for First Coast Medicare. Use the denial notice, plan document, provider agreement, or jurisdictional rule to assign the correct route and deadline. Missing registry evidence does not mean appeal rights are unavailable.
Source: First Coast Medicare provider policy. Always confirm before disputing a TFL denial — payer policies are versioned and product-specific.
Prior authorization with First Coast Medicare
Decision deadlines depend on the product, service and urgency. CMS-0057-F generally starts its decision-timeframe requirements in 2026 for Medicare Advantage, Medicaid and CHIP payers subject to the rule: seven calendar days for standard requests and 72 hours for expedited requests. Those requirements exclude drug authorizations and QHP issuers on the federally facilitated exchanges. Other plans, state rules and permitted extensions can differ. Check the applicable policy; a decision deadline is not a guarantee of approval.
CMS-0057-F decision-timeframe requirements and exclusions
Verify First Coast Medicare electronic claims (837), eligibility (270/271), remittance (835) and authorization (278) separately for the member product and clearinghouse. Registry flags and routing references are not current transaction-complete approval. Confirm the companion guide, enrollment and applicable source findings below. A blank or unverified field does not establish that the transaction is unavailable. Authorization requirements and submission channels depend on the product, service and delegated reviewer. Verify the applicable policy before scheduling; a portal listing is not proof of X12 278 connectivity.
This registry does not provide a current prior-authorization code list for First Coast Medicare. Start with the provider resources or the policy documents below, then confirm the applicable product, service and effective date. A resource link does not establish that a live code-lookup tool is available.
Top denial reasons for First Coast Medicare
Per-payer denial benchmarks publish here once the QuickIntell anonymized ETL pipeline ingests sufficient First Coast Medicare volume. Until then, see the broader CARC reference for industry-wide remediation guides.
Electronic claims, eligibility & ERA
| Transaction | Registry indication — not verification | Routing reference |
|---|---|---|
| 837P / 837I claims | Listed in registry; verify current scope | No single all-product identifier established in this registry; see source findings and verify the member product and transaction separately |
| 270 / 271 eligibility | Listed in registry; verify current scope | No single all-product identifier established in this registry; see source findings and verify the member product and transaction separately |
| 278 prior authorization | Listed in registry; verify current scope | Verify X12 278 routing separately |
| 835 ERA | Verify support and enrollment separately | No single all-product identifier established in this registry; see source findings and verify the member product and transaction separately. Clearinghouse-specific: This registry has not established one national ERA payer ID for First Coast Medicare. ERA enrollment and 835 routing are clearinghouse- and product-specific; verify in the payer portal or clearinghouse payer list before enrollment. |
Payer IDs vary by clearinghouse — confirm against your clearinghouse payer list (Availity, Change Healthcare/Optum, Waystar) before configuring submitter routing.
Source checks and remaining limits
The latest partial comparison is dated . Retained earlier findings keep their original dates below. This is a partial source check, not a whole-page, clinical or legal review. It does not refresh the legacy review date above.
portal_url
Source comparison: 2026-09-26
First Coast official claims contact is within the existing Medicare resource domain.
Primary source for portal_urlprovider_phone
Source comparison: 2026-09-26
Current contacts vary by jurisdiction and Part A/B; stored 877-602-8816 was not confirmed as a universal claims line. Use the contact matrix rather than choosing one number without its Part scope.
Primary source for provider_phonetimely_filing_days
Source comparison: 2026-09-26
First Coast specifies one calendar year, not an invariant 365-day count; span dates and limited exceptions matter.
Primary source for timely_filing_days
Not checked in this pass: Whole-record approval, legal identity, ownership and complete product coverage; Authenticated transactions and QuickIntell integrations; record_scope: Not verified by the retrieved sources in this bounded comparison; retain explicit uncertainty and do not infer from another field or organization.; payer_ids.claims: Not verified by the retrieved sources in this bounded comparison; retain explicit uncertainty and do not infer from another field or organization.; payer_ids.eligibility / payer_ids.era / era_payer_id: No current transaction-specific eligibility/ERA identifier evidence was verified; do not reuse claim identifiers.; electronic_claims_supported / supports_279_271 / supports_278: Not verified by the retrieved sources in this bounded comparison; retain explicit uncertainty and do not infer from another field or organization.; appeal_levels / prior_auth_required_codes_sample / qi_module_coverage: Not verified by the retrieved sources in this bounded comparison; retain explicit uncertainty and do not infer from another field or organization..
Sources used for this guide
Medicare coverage policies from First Coast Service Options, Inc.
First Coast Service Options, Inc. maintains 78 active Local Coverage Determinations across 5 Medicare contracts in the current Medicare Coverage Database export. Each LCD applies only to claims this contractor processes, so the same service can be covered under different criteria by the contractor next door.
Selected active policies from this contractor
A selection, not the full list: policies with measured search demand come first, then those on topics that more contractors publish LCDs for.
- L36377 Application of Skin Substitute Grafts for Treatment of DFU and VLU of Lower Extremities
- L34976 Percutaneous Vertebral Augmentation (PVA) for Vertebral Compression Fracture (VCF)
- L38805 Colon Capsule Endoscopy (CCE)
- L33252 Psychiatric Diagnostic Evaluation and Psychotherapy Services
- L37561 Cystatin C Measurement
- L33405 Polysomnography and Sleep Testing
States where it is the A/B MAC
All 78 First Coast Service Options, Inc. LCDs and jurisdictions
Evaluate QuickIntell workflow fit for First Coast Medicare
These module references are evaluation starting points, not evidence of a validated connection, supported transaction or customer deployment. Confirm the actual member plan, data access and product scope first.
- QuickRCM
Evaluate claim preparation, follow-up and denial worklists for First Coast Medicare; verify the actual plan rules and available connections before implementation.
- QuickAuth
Assess authorization-packet and status workflows for First Coast Medicare; confirm product, service, delegated reviewer and permitted submission channels.
- QuickERA
Verify the actual 835 files, posting exceptions and reconciliation requirements for First Coast Medicare before evaluating automation. An ERA identifier alone does not establish supported ingestion or posting.
- QuickCode
Evaluate documentation and coding-review controls for First Coast Medicare; require applicable sources and qualified review rather than assuming payer-specific edits are configured.
Frequently asked questions about First Coast Medicare
Where is the First Coast Medicare provider portal?
Use https://medicare.fcso.com as a starting point for First Coast Medicare provider resources. This link may open a directory or contact page rather than a transaction portal. Select the applicable product and administrator, then verify the available functions, enrollment and access requirements. QuickIntell is not the official payer portal.
What is the timely filing limit for First Coast Medicare?
Medicare claims must meet the one-calendar-year filing rule. First Coast uses the through-date for Part A span claims and from-date for Part B; receipt and limited CMS exceptions apply.
Does First Coast Medicare publish a single claims payer ID?
This registry has not established one all-product claims payer ID for First Coast Medicare. See the source findings for transaction-specific references. Look up the correct ID for the member's plan and transaction in your clearinghouse directory and verify against the member ID card before submission.
Does First Coast Medicare accept electronic claims?
Verify First Coast Medicare electronic claims (837), eligibility (270/271), remittance (835) and authorization (278) separately for the member product and clearinghouse. Registry flags and routing references are not current transaction-complete approval. Confirm the companion guide, enrollment and applicable source findings below. A blank or unverified field does not establish that the transaction is unavailable.
How do I appeal a First Coast Medicare denial?
This registry has not established a payer-specific appeal ladder for First Coast Medicare. Use the denial notice, plan document, provider agreement, or jurisdictional rule to assign the correct route and deadline. Missing registry evidence does not mean appeal rights are unavailable.
How long do First Coast Medicare prior authorization approvals take?
Decision deadlines depend on the product, service and urgency. CMS-0057-F generally starts its decision-timeframe requirements in 2026 for Medicare Advantage, Medicaid and CHIP payers subject to the rule: seven calendar days for standard requests and 72 hours for expedited requests. Those requirements exclude drug authorizations and QHP issuers on the federally facilitated exchanges. Other plans, state rules and permitted extensions can differ. Check the applicable policy; a decision deadline is not a guarantee of approval.
What is the First Coast Medicare provider phone number?
This registry lists 1-877-602-8816 as a contact reference for First Coast Medicare. Choose the First Coast provider contact for Florida/USVI or Puerto Rico and Medicare Part A or Part B using the official claims contact matrix.
Automate workflows around First Coast Medicare requirements
Connect eligibility, prior authorization, pre-submission claim checks, and remittance routing in one governed workflow. Payer and plan configuration is confirmed during implementation.
Disclaimer
This page is operational reference for medical-billing professionals. It is not legal, clinical, or contractual advice. Payer policies change without notice — always verify against First Coast Medicare's current published documents before submission. CPT® is a registered trademark of the American Medical Association.