Complaining to the Texas Department of Insurance: Filing So It Lands

A complaint to the Texas Department of Insurance lands or it does not, and the thing that decides which is not how well it is written: it is whether TDI regulates the plan at all. TDI has authority over the health plans it regulates and none over the plans it does not, so that question comes before the letter, the attachments, and the argument. In TDI’s own framing: “Texas law applies to health plans regulated by TDI”, and “federal law applies to health plans not regulated by TDI and air ambulance services”¹ (TDI page last updated 21 July 2026, checked 30 July 2026).

The Certified Application Counselor half of my week is applications, and the other half is people holding paperwork that has stalled. A woman in Lubbock brought me a complaint she had sent about a surprise anesthesia bill: four typed pages, every word true, describing a difficult year in the order she had lived it. There were no dates of service, no member number, no copy of the explanation of benefits, and no sentence saying what she wanted to happen. We rewrote it in about forty minutes into one page: a dated timeline, the amount she had been billed against the cost sharing her plan documents set, the itemized bill and the explanation of benefits attached, and one line at the end saying what outcome she was asking for. That version could be acted on. The first one could only be read.

This page is about filing so it can be acted on. Nothing here is legal advice, this site is not TDI, has no authority over any plan or provider, and cannot tell you whether your bill breaks a rule. Every figure below carries the date it was checked.

Who has authority over what?

Match the complaint to the body with power over the party in the wrong, because filing in the wrong place costs weeks and nothing else. There are four common destinations for a Texas medical billing problem, and they do not overlap.

The problem	Where it goes
A balance bill or a plan decision, where TDI regulates the plan	Texas Department of Insurance
The same problem, where the plan is self-funded and has not opted in	The federal No Surprises Act process
A hospital billing error, or a refused financial assistance application	The hospital billing office, then its patient advocate or ombudsman
A hospital that has not published its prices	CMS, under the price transparency requirements

The federal route exists because the No Surprises Act has protected people in group and individual health plans from surprise bills for most emergency services, non-emergency services from out-of-network providers at in-network facilities, and out-of-network air ambulance services since 2022² (checked 30 July 2026). The CMS route exists because hospitals have been required to publish prices online since 1 January 2021, and CMS audits a sample of hospitals, investigates complaints, and can impose civil monetary penalties³ (checked 30 July 2026).

Before you send anything about a hospital bill, apply for the hospital’s financial assistance, because that runs in parallel and is the highest value hour available to you: hospital charity care in Texas.

Does TDI regulate your plan?

Look at the card, then confirm the funding arrangement with your employer. TDI’s consumer test is whether the insurance card carries DOI, for department of insurance, or TDI, for Texas Department of Insurance. It also names ERS plans including HealthSelect, TRS plans including TRS ActiveCare and TRS-Care Standard for non-Medicare retirees, and Texas Farm Bureau or an employer plan that has opted into the Texas balance billing laws, whose card “might have TXI on it”⁴ (TDI page last updated 23 July 2026, checked 30 July 2026).

The card is a strong signal rather than a certificate, so the second step matters. A self-funded employer plan is usually administered by a well known insurance company, carries that company’s logo, and looks exactly like a fully insured plan from the outside. Ask the benefits contact in writing whether the plan is fully insured or self-funded, and if self-funded, whether it has opted in to the Texas balance billing laws. Keep the reply, because it is the document that decides which process you are in.

Deliberately absent from this page: any itemized list of plan types said to be excluded from the Texas law. TDI publishes no such sentence, and inventing one on a regulator’s behalf is how a reader who is in fact protected concludes they are not. The verified framing is the one above, and where the card leaves it ambiguous, the help line resolves it. The whole test is worked through in Texas balance billing law.

What TDI can act on

A plan it regulates, doing something the law does not allow. In practice that means a small number of recurring situations.

• A balance bill above your cost sharing on a service the Texas law reaches: emergency care, a facility-based provider at a network facility, or diagnostic imaging or laboratory work ordered by a network provider. Where the law applies, TDI says health plans have to pay an amount set by Texas law and “you don’t have to pay more than your deductible, copay, or coinsurance”¹ (checked 30 July 2026).
• A ground ambulance balance bill on a TDI-regulated plan for a trip on or after 1 January 2024, because Texas law bans balance billing for emergency medical services and ground ambulance trips from that date¹ (checked 30 July 2026). An insurer telling a Texan with a TDI-regulated plan that no surprise billing protection reaches a 2024 or later ground ambulance trip is stating the position wrongly, and that is exactly a complaint. See ambulance bills in Texas.
• A plan decision on a claim, a benefit, or a network question, on a plan TDI regulates.

If the trouble is instead that no legitimate product will cover you at all, that is a different problem with different pages: Texas has the highest uninsured rate in the country at 16.7% in 2024 against 8.2% nationally⁵ (2024 data, checked 30 July 2026), and the route out of that starts at health coverage in Texas.

What TDI cannot act on

Anything outside the insurance it regulates, and the exempt arrangements are the sharpest edge. TDI’s consumer page on alternatives to a health plan is explicit: because arrangements such as health care sharing ministries and discount plans are exempt from regulation, TDI generally cannot help with a complaint about them⁶ (TDI page last updated 7 January 2026, checked 30 July 2026).

That reverses how most people assume a dispute ends. With a regulated plan there is a regulator to write to. With an exempt arrangement, the same call usually establishes only that nobody has authority over it. It is still worth making, both because TDI can confirm on the record whether what you bought is regulated insurance and because TDI states that Texas has taken enforcement actions against some health care sharing ministries for violations of the exemption law. What these products are, in TDI’s own words, is set out in short term plans and health shares.

TDI also cannot referee the hospital side of a bill. It does not decide whether a charge was correct, whether a service was duplicated, or whether a hospital should have granted financial assistance. Those are hospital matters, and the productive routes are reading an itemized bill and negotiating a hospital bill, with the hospital’s billing office first and its patient advocate or ombudsman second, in writing, keeping the dates.

And a TDI complaint is not an HHSC appeal. A decision by the Texas Health and Human Services Commission about Medicaid, CHIP, or Healthy Texas Women is challenged through the state fair hearing process on the deadline printed on the notice, which is a separate system with a separate clock: appealing a denial in Texas.

How to file so it lands

One page of dated facts with the documents attached, and a sentence saying what you want to happen. Assemble this before you write anything:

1. The plan name, the member number, and what the card says, including DOI, TDI, or TXI markings.
2. The dates of service, not the date on the statement.
3. The provider name and the facility name, which are frequently different entities sending different bills.
4. The itemized bill, requested in writing if you do not have it.
5. The explanation of benefits for the claim, showing what the plan paid and what it says you owe.
6. The amount billed against the cost sharing your plan documents set for that service, worked out as a sum.
7. The specific rule you say was broken, named plainly: for example, a balance bill above cost sharing for a facility-based provider at a network facility, on a service provided on or after 1 January 2020.
8. What you want to happen, in one sentence.
9. A dated call log, with the name of every person you spoke to and what they said.

Then contact TDI. The consumer help line is 800-252-3439 toll free, or 512-676-6000 in Austin, “8 a.m. to 5 p.m. Central time, Monday through Friday”, and TDI’s consumer page is where the current filing route lives⁷ (checked 30 July 2026). This site links that page rather than any portal address behind it, deliberately, because the page is maintained and a copied link is not.

Two habits worth more than eloquence. Send copies and keep originals. And date your own file note the day you send anything, because in a dispute that runs months, the sequence of who knew what and when is usually what settles it.

A skeleton for the complaint itself

Write it as a timeline with an ask at the end, and let the attachments carry the detail. Four short paragraphs do more than four pages, and the structure below is the one that survived the rewrite in Lubbock.

Paragraph one, who and what. Your name, the plan name, the member number, what the card carries, and one sentence saying what the complaint is about: for example, a balance bill above cost sharing from an out-of-network provider at an in-network facility.

Paragraph two, the timeline. Dates only, in order: the date of service, the date the plan processed the claim, the date the provider billed you, the amount, the dates of each call and who you spoke to, and the date of any written reply. Resist explaining. The dates do the explaining.

Paragraph three, the rule. Name the protection you say applies and why you believe it reaches your plan, including the card markings and the date of service. If the plan has told you in writing that a protection does not apply, quote that sentence and attach the letter.

Paragraph four, the ask. One sentence saying what you want to happen: the bill withdrawn, the claim reprocessed, the balance reduced to your cost sharing. A complaint without an ask leaves the reader to guess at the remedy.

Then the attachments, labeled and in date order: the itemized bill, the explanation of benefits, both sides of the insurance card, any letters, and the call log. Number them and refer to them by number in the text.

One more thing to include that people leave out: whether you have already applied to the hospital for financial assistance, and on what date. It signals that you have worked the parallel tracks, and it keeps the two processes from being confused with each other.

How long it takes, and why no number appears here

This site publishes no TDI complaint volume, no resolution rate, and no average handling time, because none of those figures is in its verified set. A timescale printed from memory or lifted from another article does one specific harm: it tells somebody who is frightened about a bill when to expect relief, and if it is wrong they either stop chasing too early or panic too soon.

Ask TDI directly what its current timescales are for the type of complaint you are filing, and write the answer down with the date you were given it. Meanwhile, treat the complaint as one track of three rather than the only one. The hospital financial assistance application runs on its own clock: under section 501(r), a nonprofit hospital should refrain from extraordinary collection actions for at least 120 days from the first post-discharge billing statement, and its application period ends on the later of several dates, one of which is the 240th day after that statement, which makes 240 a floor rather than a cut-off⁸ (checked 30 July 2026). So an account that has already moved to a collection agency is not a closed door: medical bill collections in Texas.

And do not settle the disputed amount while you wait. Agreeing a payment plan is an acknowledgement that the full sum is owed, which can undercut the complaint you have just filed: payment plans and what to avoid.

When the bill came from an emergency

Emergency bills produce most of the large complaints, and the law that got you through the door is not the law that pays for it. Under EMTALA a Medicare-participating hospital that offers emergency services must screen and stabilize you regardless of ability to pay⁹, and a bill still follows, because it is a right to be seen rather than a payment. Both halves belong together every time, and they are set out in EMTALA and the emergency room.

What TDI can act on afterwards is the plan’s handling of the claim and any balance bill above your cost sharing. What it cannot act on is the size of the hospital’s charge, which is where the price transparency requirements and the good faith estimate come in instead: hospital price transparency. Whatever the paperwork looks like afterwards, cost is never a reason to delay emergency care. Go, and file later.

For county level help finding the right office for anything on this page, 2-1-1 Texas answers from anywhere in the state, or on (877) 541-7905¹⁰ (checked 30 July 2026). For the full sequence from first statement to closed account, start at medical bills in Texas.

Texas Care Map is an independent publisher with no connection to the Texas Department of Insurance and no role in any complaint filed with it. We are not part of the State of Texas, HHSC, or CMS, we do not act for readers, and we cannot say whether a particular plan is regulated or a particular bill is unlawful. The department can, and its help line is free to call.