Payer directory
Fidelis Care provider contacts
Provider phone number, Prior authorization, Payer ID, Claims address, from Fidelis Care's own provider pages.
Provider Call Center (Medicaid): 1-888-343-3547. From Fidelis Care's own page on fideliscare.org, verified October 23, 2026.
Provider phone number
| For | Type | Value | Payer page says | Verified |
|---|---|---|---|---|
| Provider Call CenterMedicaid | Phone | 1-888-343-3547 | Where do I direct billing questions? 1-888-FIDELIS (1-888-343-3547) and follow the prompts for the Provider Services Departmentfideliscare.org |
Prior authorization
| For | Type | Value | Payer page says | Verified |
|---|---|---|---|---|
| Utilization Management authorization assistance | Phone | 1-718-896-6500 | Fidelis Care's Utilization Management Department can provide authorization assistance from 8:30 a.m. to 5 p.m. Monday through Friday except on holidays. Call: 1-718-896-6500fideliscare.org | |
| Behavioral health and utilization management fax | Fax | 1-833-561-0094 | Fax: 1-833-561-0094fideliscare.org | |
| Prior authorization request faxMedicaid | Fax | 1-877-533-2405 | Prior authorization requests can be submitted via fax (e-fax) to: 1-877-533-2405.fideliscare.org |
Payer ID
| For | Type | Value | Payer page says | Verified |
|---|---|---|---|---|
| Electronic claims payer IDMedicaid | Payer ID | 11315 | Receiver Name: Fidelis Care Fidelis Care Receiver ID: 113153422 Fidelis Payer ID: 11315fideliscare.org |
Claims address
| For | Type | Value | Payer page says | Verified |
|---|---|---|---|---|
| Paper professional claims (CMS-1500), first-time submissionMedicaid, CHP, Essential Plan | Mailing address | Fidelis Care, PO Box 898, Amherst, NY 14226-0898 | CMS-1500 Fidelis Care PO Box 898 Amherst NY 14226-0898fideliscare.org | |
| Paper facility claims (UB-04), first-time submissionMedicaid, CHP, Essential Plan | Mailing address | Fidelis Care, PO Box 806, Amherst, NY 14226-0806 | UB-04 Fidelis Care PO Box 806 Amherst NY 14226-0806fideliscare.org | |
| Paper claims, first-time submissionMedicare | Mailing address | Fidelis Care Dual Advantage and Fidelis Care Medicare Advantage, PO Box 170, Amherst, NY 14226-0170 | Fidelis Care Dual Advantage and Fidelis Care Medicare Advantage PO Box 170 Amherst NY 14226-0170fideliscare.org |
Rivvi lists only what Fidelis Care publishes on its own provider pages (fideliscare.org). A topic with nothing verified is left off. This page does not say which providers or plans Fidelis Care contracts with.
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Source: Fidelis Care's own provider pages, linked in each table. Checked . Last updated . How Rivvi sources data. Spot an error? hello@rivvi.ai.
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