TRICARE West provider portal, phone and payer ID quick facts
| Provider portal | https://tricare.triwest.com/provider |
|---|---|
| Provider phone | 1-888-874-9378 |
| Claims payer ID | 99726 |
| Eligibility payer ID | TRICW |
| ERA payer ID | TRICW |
| Timely filing | 365 days (verify applicability) |
| Prior auth route | X12 278 plus provider portal |
| Last reviewed | 2026-04-23 |
TRICARE West at a glance
| Legal name | TriWest Healthcare Alliance Corporation (TRICARE West Region contractor) |
|---|---|
| Also known as | TriWest, TRICARE West Region |
| Category | Government program |
| Parent organization | Defense Health Agency (contracted through TriWest) |
| Claims payer ID | 99726 |
| Eligibility (270/271) payer ID | TRICW |
| ERA (835) payer ID | TRICW |
| NAIC company code | Not established in this registry |
| States covered | Alaska, Arizona, California, Colorado, Hawaii, Idaho, Kansas, Minnesota, Missouri, Montana, Nevada, New Mexico, North Dakota, Oregon, South Dakota, Texas, Utah, Washington, Wyoming |
| Provider portal | https://tricare.triwest.com/provider |
| Provider phone | 1-888-874-9378 |
Always verify claims-routing details against the member ID card and the payer's current EDI companion guide before submission.
Timely filing & appeals for TRICARE West
This registry lists 365 days as an initial-claim reference for TRICARE West. Confirm the applicable product, provider agreement, start event and current payer instructions. Do not apply this value automatically to out-of-network, secondary, corrected or appealed claims.
| Submission type | Window |
|---|---|
| Initial claim reference | 365 days (verify applicability) |
| 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 |
Reconsideration and appeal routes
- ReconsiderationFile within 90 days
Written reconsideration request within 90 days of the initial determination per TRICARE Policy Manual.
- Formal ReviewFile within 60 days
Formal review by the TRICARE Area Office following an unfavorable reconsideration.
- HearingFile within 60 days
Hearing before a DHA-appointed hearing officer (claims ≥ the TRICARE hearing threshold).
Source: TRICARE West provider policy. Always confirm before disputing a TFL denial — payer policies are versioned and product-specific.
Prior authorization with TRICARE West
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
TRICARE West accepts X12 278 prior-authorization transactions electronically. The procedures most commonly subject to prior authorization include advanced imaging, inpatient admissions, specialty pharmacy, and certain outpatient surgical procedures. Use the payer's authorization tool below to confirm requirements per CPT before scheduling a service.
TRICARE West maintains a live prior-authorization code lookup tool that supersedes any cached list. Use the provider portal or the policy documents below to confirm the current PA list before rendering a service.
Top denial reasons for TRICARE West
Per-payer denial benchmarks publish here once the QuickIntell anonymized ETL pipeline ingests sufficient TRICARE West volume. Until then, see the broader CARC reference for industry-wide remediation guides.
Electronic claims, eligibility & ERA
| Transaction | Supported | Payer ID |
|---|---|---|
| 837P / 837I claims | Yes | 99726 |
| 270 / 271 eligibility | Yes | TRICW |
| 278 prior authorization | Yes | Verify X12 278 routing separately |
| 835 ERA | Yes | TRICW |
Payer IDs vary by clearinghouse — confirm against your clearinghouse payer list (Availity, Change Healthcare/Optum, Waystar) before configuring submitter routing.
What revenue cycle teams should verify before submitting claims
- Use 99726 for TRICARE West claim submission to PGBA, and confirm eligibility/remit mappings such as TRICW in the provider's clearinghouse.
- Submit referrals and authorizations through Availity under TRICARE West/TriWest Payer Spaces.
- Secondary claims with Other Health Insurance must be submitted within the separate OHI timing rule after primary adjudication.
Common denial and routing risks for this payer
- Using legacy TRICARE West or VA CCN payer IDs after the TriWest transition.
- Missing referral or authorization requirements for Prime and specialty care services.
- Submitting OHI secondary claims outside the TRICARE West post-primary-adjudication window.
How QuickIntell supports this workflow
- Split TRICARE West claim routing from VA Community Care and CHAMPVA routing so similar government names do not collide.
- Use authorization workqueues tied to Availity referral status before releasing scheduled services.
- Track TRICARE reconsideration and appeal clocks directly from the remittance advice date.
Sources used for this guide
State coverage
TRICARE West operates in the following states. Each link opens state-level Medicaid program details, dominant commercial payers, and state-specific RCM regulations.
QuickIntell coverage for TRICARE West
- QuickRCM
End-to-end claim lifecycle automation tuned to TRICARE West's edits and adjudication patterns.
- QuickAuth
Automated prior-authorization submissions and status checks for TRICARE West services that require PA.
- QuickERA
Automated 835 ERA posting from TRICARE West with payment reconciliation and denial routing.
Frequently asked questions about TRICARE West
Where is the TRICARE West provider portal?
The TRICARE West provider portal is available at https://tricare.triwest.com/provider. Use it for eligibility checks, claim status, prior authorization workflows, appeals, and payer-specific routing updates. QuickIntell links to the payer's provider-facing portal as a reference and is not the official payer portal.
What is the timely filing limit for TRICARE West?
This registry lists 365 days as an initial-claim reference for TRICARE West. Confirm the applicable product, provider agreement, start event and current payer instructions. Do not apply this value automatically to out-of-network, secondary, corrected or appealed claims.
What is the TRICARE West payer ID?
The registry lists claims payer ID 99726 for TRICARE West. Eligibility (270/271): TRICW. ERA (835): TRICW. Do not substitute a claims ID for an unverified transaction ID. Confirm the member ID card, product and clearinghouse payer list before submitting.
Does TRICARE West accept electronic claims?
Yes — TRICARE West accepts ANSI X12 837P and 837I electronic claims through standard clearinghouses. Real-time eligibility (270/271) is supported and X12 278 prior authorization is supported.
How do I appeal a TRICARE West denial?
Identify the product, state and reason for the decision before choosing a TRICARE West dispute route. The listed starting route is Reconsideration (File within 90 days). Written reconsideration request within 90 days of the initial determination per TRICARE Policy Manual. Verify the controlling notice and exceptions; reconsideration, appeal and external review are not always a mandatory sequence.
How long do TRICARE West 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 TRICARE West provider phone number?
This registry lists 1-888-874-9378 as a provider contact for TRICARE West. Confirm the service scope and the number on the member ID card; claim, eligibility and authorization inquiries may use different teams. Have the member ID, date of service and tax ID ready. The provider portal is https://tricare.triwest.com/provider.
For revenue-cycle teams
Connect payer lookups to your revenue-cycle workflow
Do staff repeatedly move between payer references, eligibility checks, claim status and remittance follow-up?
- Keep this payer's official reference available to the team.
- Identify one repeated administrative task and measure its handling time.
- Evaluate the required access, exceptions and reviewer handoff before expanding automation.
TRICARE West is an operational reference. Payer decisions remain with the payer. Confirm plan coverage, system access and supported actions during a scoped evaluation.
Download the illustrative workflow worksheet (PDF) · Explore the AI RCM evaluation toolkit · Model the workload and costs
Automate workflows around TRICARE West 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 TRICARE West's current published documents before submission. CPT® is a registered trademark of the American Medical Association.