Emergency Medicine Billing Services in Texas

Texas Insurance Code Section 1467.002 names exactly three categories of plan the state's out-of-network dispute chapter reaches: a health benefit plan offered by an HMO under Chapter 843, a preferred provider or exclusive provider benefit plan offered by an insurer under Chapter 1301, and an administrator of a non-HMO plan under Chapter 1551, 1575, or 1579 — the Employees Retirement System and Teacher Retirement System plans. Self-funded ERISA plans are absent from that list, and the Texas Department of Insurance states it directly: Texas law does not apply to self-funded employer-sponsored health plans or Medicare.

That distinction never shows up on the claim form. It shows up on the card. TDI's own test is that a state-regulated plan's ID card carries "DOI" or "TDI." Since September 1, 2023, HB 1592 has let a self-insured or self-funded ERISA plan elect, for a given plan year, to be governed by Texas balance-billing rules under Insurance Code Chapter 1275, and TDI notes that an opted-in employer plan — or a Texas Farm Bureau plan — may show "TXI" on the card instead. TDI publishes a live, dated list — its "ERISA plans that have opted for Texas IDR" page — of the employer plans that filed that election, each with its own expiration date, so an election in force last quarter may not cover today's date of service. We check that list per claim rather than caching an answer, and we never infer a plan's administrator from the fact that it opted in.

Our triage from registration to first submission runs in this order:

1. Capture both sides of the insurance card as an image at registration, not just the member ID keyed into the ADT feed.
2. Read the card for "DOI" or "TDI" (state-regulated, Texas track) or "TXI" (an ERISA plan that elected in, or Texas Farm Bureau).
3. Send ERS HealthSelect and TRS ActiveCare coverage to the Texas track, along with TRS-Care Standard for non-Medicare retirees; Medicare-eligible retirees sit on Medicare, and Texas law does not reach Medicare.
4. Send every other self-funded employer plan without a live election to federal No Surprises Act dispute resolution, and route Medicare, Medicaid, CHIP and TRICARE claims to neither — the federal IDR process does not apply to items and services payable by those programs.
5. Re-verify regulatory status before filing any dispute, because a request filed in the wrong forum is at risk of being rejected as ineligible, no matter how strong the underlying claim is.

Two guardrails worth stating plainly. EMTALA and the federal No Surprises Act are uniform federal law and do not vary by state; what varies is which plans a state statute can reach, and a state surprise-billing law never reaches an ERISA self-funded plan on its own force. CMS classifies Texas as a "Bifurcated Process" state on its federal IDR applicability chart, which is correct as a label — but that chart is expressly current only as of January 11, 2023 and lists six opt-in states that do not include Texas, because the Texas election took effect after it was published. For any specific self-funded plan, TDI's live opt-in list governs, not the CMS chart.

Chapter 1467 divides the dispute process by who submitted the claim, and an emergency physician group always lands on the arbitration side. Section 1467.050 applies the mediation subchapter "only with respect to a health benefit claim submitted by an out-of-network provider that is a facility." Section 1467.081 applies the arbitration subchapter "only with respect to a health benefit claim submitted by an out-of-network provider who is not a facility." The hospital or freestanding ER and the group that staffs it therefore file into two different processes on the same encounter, under two different clocks.

The assignment row is sourced to TDI's published arbitration timeline, which states the day-31 rule for arbitrators; TDI does not publish a matching day-31 assignment rule on the mediation side.

The award mechanism is baseball-style and final. The arbitrator "selects the amount determined to be closest" under the statutory factors "as the binding award amount," and "may not modify the binding award amount selected." There is no splitting the difference. The number the group submits is the case. Section 1467.083 lists the factors weighed, two of which are benchmark percentiles: the 80th percentile of all billed charges for the service performed by a provider in the same or similar specialty in the same geozip area, and the 50th percentile of rates paid to participating providers in the same or similar specialty in the same geozip area, both as reported in a benchmarking database described by Section 1467.006. The statute names no vendor — it says "a benchmarking database" — so a Texas arbitration position built on percentile data has to identify its own source rather than borrow authority from the statute.

Batching has a hard ceiling. The commissioner's rules for submitting multiple claims in one proceeding must provide that the total amount in controversy may not exceed $5,000 and that the claims be limited to the same out-of-network provider. For a group holding hundreds of small out-of-network balances, that cap decides how the docket is assembled, which is why we build arbitration queues by counterparty and dollar band instead of by date of service.

For emergency care by a non-network physician, Section 1271.155(a) requires an HMO to pay "at the usual and customary rate or at an agreed rate," and Section 1301.155(b) carries the parallel rule for preferred provider and exclusive provider plans. That is the entire statutory standard. Texas fixes no percentage of Medicare, publishes no fee schedule, and sets no floor for out-of-network emergency physician services under state-regulated plans. The number is resolved case by case through arbitration.

The contrast inside the same code is worth naming out loud. Texas extended its balance-billing ban to emergency medical services and ground ambulance trips provided on or after January 1, 2024, and for those services Section 1301.166(b) does give a number: the rate set, controlled, or regulated by the political subdivision where the service or transport originated, if that rate was submitted to TDI, and otherwise the lesser of the provider's billed charge or 325 percent of the current Medicare rate including applicable extenders and modifiers. Ground ambulance gets a formula. The emergency physician does not. The federal No Surprises Act does not cover ground ambulance at all, while Texas law does not reach air ambulance — TDI states that federal law applies to air ambulance services.

Payment timing is fixed even where the amount is not. Under Section 1271.155(f) the HMO must make that payment directly to the non-network physician no later than the 30th day after it receives an electronic clean claim or the 45th day after a nonelectronic clean claim, with the same clock at Section 1301.155(c) on the preferred provider side. Patient exposure is capped: an out-of-network provider "may not bill an enrollee in, and the enrollee does not have financial responsibility for, an amount greater than an applicable copayment, coinsurance, and deductible."

What Texas publishes about outcomes needs a careful read. TDI's most recent SB 1264 biennial report is the November 2024 edition, covering data through 2023. For single-claim arbitration requests actually decided by an arbitrator in 2023, it reports an average original payment of $289, an average awarded amount of $2,342, and an average billed amount of $18,577 — reported across all provider types, not broken out for emergency medicine. TDI publishes no emergency-medicine-specific award amounts, win rates, or settlement rates, and neither TDI nor HHSC publishes a Texas emergency-department denial rate, clean-claim rate, or payer-level ED reimbursement benchmark. A vendor quoting you a "Texas ED denial rate" is quoting something no Texas agency has published. We report yours out of your own remittance data instead, through a documented accounts receivable follow-up cadence.

Texas commercial filing is short and unforgiving. Section 843.337(a) requires a physician or provider to submit a claim to an HMO "not later than the 95th day after the date the physician or provider provides the health care services," and subsection (b) is blunt about the consequence: "If a physician or provider fails to submit a claim in compliance with this section, the physician or provider forfeits the right to payment." That period can be extended by contract, and Section 1301.102 carries the parallel rule on the preferred provider side. Ninety-five days is the real design constraint for an ED group whose demographic and coverage data arrives from someone else's registration desk, which is why we run claims submission against the filing calendar rather than the batch calendar.

The plan's own clock is 30/45. Section 843.338 requires a determination on a clean claim from a participating physician or provider no later than the 45th day after a nonelectronic claim or the 30th day after an electronically submitted one, with Section 1301.103 mirroring it for insurers.

Texas prompt-pay penalties are not an interest rate. Section 843.342 computes them off billed charges: a late clean claim owes the contracted rate plus the lesser of 50 percent of the difference between billed charges as submitted and the contracted rate, or $100,000; a claim paid on or after day 46 and before day 91 owes the lesser of 100 percent of that same gap or $200,000; a claim paid on or after day 91 owes the day 46-90 penalty plus 18 percent annual interest on it. Section 1301.137 is the preferred provider analogue.

The carve-out matters more to an ED group than the penalty does. Section 1301.155(e) provides that the out-of-network emergency care section "may not be construed to require the imposition of a penalty under Section 1301.137," and Section 1271.155 carries the same disclaimer as to Section 843.342. On an out-of-network emergency claim the prompt-pay penalty is not the lever — arbitration is. Prompt pay is the lever on the in-network book, and the two demand different appeal and denial workflows.

Concentration shapes both books. The AMA's Competition in Health Insurance study analyzed 2024 data across 384 metropolitan areas and found 97% of commercial metro-area markets highly concentrated, up from 95% in 2014, with a Blue Cross Blue Shield insurer holding the largest commercial share in 84% of metro areas. In Texas — per the Texas Medical Association's summary of the same AMA report — Health Care Service Corporation, which oversees Blue Cross and Blue Shield of Texas, holds a plurality or majority of combined commercial products in each of the 26 Texas metro areas measured, from 37% in Austin-Round Rock-San Marcos to 74% in Abilene, and 60% of the PPO-only market; Aetna holds 19% and is second in 13 of those markets, peaking at 30% in El Paso, and Cigna is second in 10, highest at 23% in Dallas-Fort Worth-Arlington. The AMA's full report is a paid publication and the Texas figures available at no cost are metro-level, so we quote no statewide Texas share.

Texas Medicaid is overwhelmingly managed care, and the roster an ED group bills is set by service area, not statewide. HHSC's Managed Care Service Areas map, revised January 2026, lists STAR Health statewide through Superior and dental statewide through DentaQuest, MCNA, and UnitedHealthcare Dental, while STAR, STAR+PLUS, STAR Kids, and CHIP rosters differ by area: Harris STAR runs Community Health Choice, Molina, Texas Children's, United, and Wellpoint; Dallas STAR runs Molina, Parkland, and Wellpoint. Residual fee-for-service claims go to TMHP.

That roster is moving. HHSC states that FirstCare and RightCare Scott & White leave the Texas Medicaid STAR program on August 31, 2026, affecting the Central Texas and West Texas/Lubbock service areas, with members required to pick a new plan by July 14, 2026 or be moved automatically. Separately, HHSC has issued a Notice of Intent to Award — not executed contracts — for STAR and CHIP managed care under RFP No. HHS0011152, naming respondents by service area including Molina, Blue Cross and Blue Shield of Texas, Aetna Better Health of Texas, UnitedHealthcare Community Plan, Wellpoint, and Superior HealthPlan. HHSC publishes no operational start date for those contracts, and no STAR Kids award is posted, so we publish no date for either. Any West Texas or Lubbock payer mix still built on FirstCare or RightCare goes obsolete that day.

The filing window is 95 days on both tracks. The Uniform Managed Care Manual requires filing with the MCO or its subcontracted claims processor within 95 days from the date of service, and if the claim is not received in that window "the MCO must deny the Claim" absent a listed exception. On fee-for-service, TMHP must receive claims within 95 days of each date of service, hospital inpatient claims run 95 days from discharge or the last date of service, and appeals are due within 120 days of the R&S Report disposition date.

Two rules cut in the group's favor, one cuts against. In its favor: Medicaid claims administrators are prohibited from requiring prior authorization or primary care provider notification for emergency services, including those needed to evaluate or stabilize an emergency medical or emergency behavioral health condition, so a denial premised on missing authorization for an emergency is contestable on its face. Also favorable: MCOs owe 18 percent annual interest, calculated daily, for the full period a clean claim or portion of one remains unadjudicated past the 30-day deadline, enforced as a contractual remedy including liquidated damages. Against: ED services are subject to retrospective review, and Texas applies an Emergency Department Payment Reduction to nonemergent and nonurgent ED evaluation and management on the outpatient hospital claim at 125 percent of the adult physician office visit fee for procedure code 99202, or 55 percent of the allowed rate at rural hospitals, with critically ill or critically injured clients of any age exempt. That reduction sits in Texas Medicaid's inpatient and outpatient hospital policy and applies on the facility claim; we do not price the group's professional claim as though it carries the same reduction when we post Texas Medicaid remittances.

TDI's own data explains why so much Texas emergency volume sits out of network. Health plans reported to TDI that they were far less likely to have network arrangements with freestanding ERs than with other provider types, and TDI notes hospitals are more likely to be in network than freestanding ERs and ground ambulances. That is a structural feature of the Texas market rather than a contracting failure by any one group, and it is why the arbitration docket, not the fee schedule, is where the money gets decided.

State law folds those facilities into the emergency-care definition itself. Section 1301.155(a) defines emergency care as services provided "in a hospital emergency facility, freestanding emergency medical care facility, or comparable emergency facility" to evaluate and stabilize a condition of recent onset and severity, including severe pain, that a prudent layperson with average knowledge of medicine and health would believe could place health in serious jeopardy without immediate care. HB 2041 (2019) added freestanding emergency medical care facilities, including those exempt from Chapter 254 licensing, to the state's health care facility definition and imposed disclosure requirements.

The reporting obligation reaches further than most groups expect. Under Health and Safety Code Chapter 108, a freestanding emergency medical care facility exempt from licensing must report data on emergency services provided at its location under its assigned THCIC ID, and a hospital outpatient department that performs emergency services and bills using revenue codes 0450, 0451, 0452, 0456, or 0459 must report as well. What is reported is administrative claims-level billing data on all patient ED visits, including visits that generate no billing claim because the patient is self-pay or charity. That is a facility duty rather than the physician group's, but it runs off the same encounter data, and mismatches surface quickly.

Two details we build into every Texas workflow. First, the SB 1264 balance-billing waiver cannot be used in an emergency; where it is available at all — an out-of-network doctor at an in-network facility — the patient must sign it at least 10 business days before the procedure, and no waiver is needed for office appointments or when a patient chooses an out-of-network facility. Nobody signs a valid waiver in an emergency department. Second, the explanation of benefits is a Texas trigger document: Section 1271.008 requires the EOB furnished to the physician or provider to carry information advising of the availability of mediation or arbitration under Chapter 1467, alongside the balance-billing prohibition statement and an itemization of what the patient may be billed. We index EOBs on receipt, because the 90-day arbitration window runs from the date the initial payment is received.

That is the shape of our emergency medicine billing practice in Texas: card-level forum triage at registration, 95-day filing discipline, an arbitration queue built to the $5,000 consolidation ceiling, and a Medicaid book worked against a roster that changes on August 31, 2026.