Texas Opens a TriWest Investigation Over Denied TRICARE Claims: What Military Families in Texas Should Know

What Changed, and When

On September 1, 2026, the Office of the Attorney General of Texas announced that it had launched an investigation into TriWest Healthcare Alliance Corp. “over the company’s conduct in its insurance policies,” stemming from “reports and admission that the company wrongfully denied health care claims.” According to the announcement, the office has issued Civil Investigative Demands — the formal document-and-information demand the Attorney General may issue while investigating a possible Deceptive Trade Practices Act violation — to the company, and plans to interview consumers and TriWest employees.

The announcement describes the complaint pattern this way: TriWest is said to have denied claims “by falsely claiming that the insured has other health insurance,” known in TRICARE paperwork as OHI. When TRICARE records show a patient has other coverage, TRICARE pays second, so a claim submitted as primary is denied until the other insurer is billed. If the “other insurance” does not exist — or is something like a stand-alone vision plan that does not cover the care at issue — the denial has nothing to bill against.

The office uses one Texas family as its example: a husband and wife who together served more than 20 years, where the husband, being treated for cancer, had claims for treatment and appointments denied because TriWest read his vision plan as other health insurance. According to the announcement he spent almost two years trying to correct it and got relief only after a national news story aired. The office states that the family’s situation “is not unique.”

Two points about all of this matter, and it is easy to read past both:

• An investigation is not a finding. No court has found, and the Attorney General has not announced, that TriWest violated Texas law. A Civil Investigative Demand is a request for information at the start of an inquiry, not a charge and not a judgment.
• The underlying problem was acknowledged by the company before the state acted. In a letter to beneficiaries dated May 19, 2026, TriWest’s president and chief executive wrote that “some beneficiaries’ claims incorrectly reflected that they had OHI, which resulted in the claims initially being denied,” called it “not acceptable,” said the OHI denial rate had fallen to 1.3 percent, and set up a dedicated email address and an OHI questionnaire for affected beneficiaries. That letter is the “admission” the Attorney General’s announcement refers to.

Why Texas, and Why Now

TriWest did not administer TRICARE claims for Texas residents until recently. On January 1, 2025, the Defense Health Agency’s new regional contracts took effect, moving six states — Texas, Arkansas, Illinois, Louisiana, Oklahoma and Wisconsin — from the East Region (Humana Military) into the West Region, and putting TriWest in charge of the West Region in place of Health Net Federal Services. Texas TRICARE families changed contractors on that date whether or not they noticed.

NBC News, whose reporting the Attorney General’s announcement credits, reported in May 2026 that the company’s apology went to roughly 4.2 million beneficiaries, and that it had spoken with more than a dozen beneficiaries who described denied services, overturned approvals and dead-end customer service after the transition. Local Texas outlets carried the Attorney General’s announcement on September 2, noting that “investigators have not determined that TriWest violated Texas law.”

Who in Texas This Reaches

This one reaches a large and specific group, because Texas is home to some of the country’s biggest military communities — Fort Cavazos in Killeen, Fort Bliss in El Paso, Joint Base San Antonio, Naval Air Station Corpus Christi, Sheppard Air Force Base in Wichita Falls, Dyess in Abilene, Goodfellow in San Angelo and Laughlin in Del Rio, plus the retirees and reservists who settled near them:

• TRICARE beneficiaries in Texas whose claims were denied for “other health insurance” they do not have. Active-duty families on TRICARE Prime or Select, retirees under 65 and their dependents, and Reserve and Guard families on TRICARE Reserve Select are all administered by TriWest in Texas. Retirees on TRICARE For Life, whose claims are processed by a different contractor, are a different case.
• Beneficiaries who paid providers out of pocket, or were sent to collections, while a wrongful denial stood. Reversing the denial in TRICARE’s system and being made whole for the money already spent are two separate problems.
• Beneficiaries whose care was delayed or interrupted. The example in the Attorney General’s announcement is a cancer patient. Where an interruption in treatment is alleged to have caused harm, the questions stop being about billing.
• Texas doctors, clinics and hospitals that treated TRICARE patients and were not paid. Providers in the TriWest network have their own contract and billing questions, which are business questions rather than consumer ones.

What This Changes Legally

Nothing about the announcement changes the law itself. What it does is put a specific practice — recording other health insurance a patient does not have, and denying claims on that basis — under a statute Texas already had, alongside the federal appeal process TRICARE already had. A few facts about each:

• TRICARE’s own appeal deadline is short. Under the factual appeal rules published by the Defense Health Agency, a beneficiary appealing a payment denial sends a letter to the regional contractor postmarked within 90 days of the date on the explanation of benefits or other decision. If the amount is $50 or more, a formal review by the Defense Health Agency can follow, with its own 60-day window, and amounts of $300 or more can go to an independent hearing. The rules say to send the appeal with whatever documents you have rather than wait for a complete file.
• The state statute is the DTPA. The Texas Deceptive Trade Practices–Consumer Protection Act, Chapter 17 of the Texas Business and Commerce Code, prohibits false, misleading or deceptive acts in trade or commerce. The Attorney General’s stated question is whether TriWest’s conduct violated it.
• The Attorney General enforcing the DTPA and a consumer suing under it are two different tracks. The Attorney General’s authority sits in Subchapter E; a private consumer action is a separate right under Section 17.50. An enforcement action by the state does not by itself resolve any individual claim, and a consumer does not have to wait for the state to finish.
• There is a written notice step and a deadline. Section 17.505 requires a consumer to give written notice of the complaint and the amount of damages at least 60 days before filing suit. Section 17.565 sets a two-year limitations period, running from the deceptive act or from when the consumer discovered or reasonably should have discovered it. How either applies to a particular denial is exactly the kind of question that depends on the individual facts.
• A federal contractor is not an ordinary insurer. TriWest administers a federal program under a Defense Health Agency contract. Whether, and how far, a state consumer statute reaches a federal health care contractor is a legal question the investigation itself may test, and it is one reason the state’s inquiry and an individual’s options are worth reviewing separately rather than assumed to be the same thing.

What Kind of Option Might Apply

Nothing here is a prediction about any case or about the company. What a Texas consumer protection or health care lawyer can review includes:

• Whether a denied claim is still inside TRICARE’s 90-day factual appeal window, and what the appeal letter needs to include.
• Whether TriWest’s own OHI correction process, described in its May 19 letter, is the right first step for a specific family, and how to document what was submitted and when.
• Whether the conduct in a specific case fits what the Texas Deceptive Trade Practices Act covers, and whether the two-year period has run or when the clock is treated as having started.
• Whether money paid out of pocket, or a provider’s collection action, can be addressed — and against whom.
• Where care was delayed or interrupted, whether that raises questions beyond a billing dispute.
• For a Texas provider, what its network agreement with TriWest says about claims, appeals and payment timelines, which is a commercial question rather than a consumer one.

Explanations of benefits, denial letters, the dates of any calls or emails to TriWest, and receipts for anything paid out of pocket are the sort of thing a lawyer will typically ask about. Those are ordinary questions about your own record, not a commitment to anything.

Why Acting Quickly Can Matter

Two clocks are running at once, and they are measured differently. The first is TRICARE’s 90-day appeal window, which runs from the date printed on the explanation of benefits, not from the day the letter is read. The second is the two-year DTPA limitations period in Section 17.565, measured from the deceptive act or from reasonable discovery of it, with the 60-day pre-suit notice window in Section 17.505 sitting inside that period rather than extending it.

The investigation itself has no announced timetable. It is best to talk with a lawyer about your own denied claims rather than wait to see how the state’s inquiry ends.

Sources

1. Office of the Attorney General of Texas, Attorney General Ken Paxton Investigates TriWest Health Insurance Company Over Wrongful Denial of TRICARE Claims (September 1, 2026) — primary document.
2. TriWest Healthcare Alliance, Letter to TRICARE West Region beneficiaries on Other Health Insurance (May 19, 2026) — primary document.
3. Defense Health Agency, TRICARE, Factual Appeals — primary document (appeal deadlines).
4. TRICARE Newsroom, Reminder: TRICARE Regions Are Changing Jan. 1, 2025 — primary document (Texas moved to the West Region).
5. Texas Business and Commerce Code, Chapter 17, Deceptive Trade Practices–Consumer Protection Act (Texas Statutes) — primary document.
6. NBC News, Military healthcare contractor apologizes to 4 million beneficiaries (May 2026).
7. NBC News, He pitched military service with a promise of lifetime healthcare. When he needed it, the system failed. (2026).
8. WBAP / Dallas Express, Paxton Investigates TriWest Over Alleged Wrongful Denial Of TRICARE Claims (September 2, 2026).