Payer directory
TRICARE provider contacts
Provider phone number, Prior authorization, Payer ID, Claims address, from TRICARE's own provider pages.
Humana Military provider service line (IVR) (TRICARE East Region): 1-800-444-5445. From TRICARE's own page on humanamilitary.com, verified October 23, 2026. 1 more entry by plan type below.
Provider phone number
| For | Type | Value | Payer page says | Verified |
|---|---|---|---|---|
| Humana Military provider service line (IVR)TRICARE East Region | Phone | 1-800-444-5445 | Providers who do not have internet access can take advantage of Humana Military’s IVR system through our toll-free service line, (800) 444-5445,humanamilitary.com | |
| TriWest customer serviceTRICARE West Region | Phone | 1-888-874-9378 | Call us at 888-TRIWEST (874-9378) and follow the prompts for expert service.tricare.triwest.com |
Prior authorization
| For | Type | Value | Payer page says | Verified |
|---|---|---|---|---|
| Referrals and authorizations faxTRICARE East Region | Fax | 1-877-548-1547 | Submit via fax (if unable to electronically submit via provider self-service): Referrals and authorizations: (877) 548-1547humanamilitary.com | |
| Mental health referrals and authorizations faxTRICARE East Region | Fax | 1-877-378-2316 | Mental health referrals and authorizations: (877) 378-2316humanamilitary.com | |
| Referral and authorization guidelinesTRICARE West Region | Web page | tricare.triwest.com | Use the Online Referral Management System on provider portal, Availity to submit and view TRICARE West Region referrals and authorizations.tricare.triwest.com |
Payer ID
| For | Type | Value | Payer page says | Verified |
|---|---|---|---|---|
| Electronic claims payer IDTRICARE East Region | Payer ID | 99727 | In order to process claims payments under the TRICARE East Region contract, Humana Military changed the required payer ID to 99727humanamilitary.com | |
| Electronic claims payer IDTRICARE West Region | Payer ID | 99726 | The TRICARE West Region Payer ID is 99726.tricare.triwest.com |
Claims address
| For | Type | Value | Payer page says | Verified |
|---|---|---|---|---|
| Paper claims (East Region handbook: SHCP, CHCBP, and DME claims)TRICARE East Region | Mailing address | TRICARE East Region claims, PO Box 202146, Florence, SC 29502-2146 | Send all paper TRICARE claims to: TRICARE East Region claims PO Box 202146 Florence, SC 29502-2146humanamilitary.com | |
| Paper claimsTRICARE West Region | Mailing address | TRICARE West Claims, P.O. Box 202160, Florence, SC 29502-2160 | Mail or fax your claim(s) to: TRICARE West Claims P.O. Box 202160 Florence, SC 29502-2160tricare.triwest.com | |
| Paper claims faxTRICARE West Region | Fax | 1-877-989-0070 | Florence, SC 29502-2160 Fax Number: 1-877-989-0070tricare.triwest.com |
Rivvi lists only what TRICARE publishes on its own provider pages (tricare.mil). A topic with nothing verified is left off. This page does not say which providers or plans TRICARE contracts with.
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Source: TRICARE'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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