Cardiology Billing Services in Texas

Texas Medicaid runs through three managed care programs — STAR for low-income families and children, STAR+PLUS for adults with disabilities and seniors who need long-term services, and STAR Kids for children with disabilities. Each is administered through MCOs including Superior HealthPlan (Centene), Molina Healthcare, UnitedHealthcare Community Plan, Wellpoint (the plan Texas billers still call Amerigroup — Elevance rebranded Amerigroup Texas to Wellpoint Texas on January 1, 2024), and Community Health Choice. Cardiology practices treating Medicaid-enrolled patients hit the STAR+PLUS population disproportionately because adult cardiac disease aligns with that program's eligibility. Each MCO has its own prior authorization rules for procedures like 93458 (left heart cath) and 92928 (PCI with stent), its own preferred imaging vendors, and its own appeals process. Texas Medicaid is tight on the calendar: the Texas Medicaid Provider Procedures Manual states that, unless otherwise stated, claims must be received by TMHP within 95 days of each date of service, and the managed care track runs the same 95 days (365 days applies only to out-of-state providers; the federal 12-month outer limit still applies to everyone). Commercial payers in Texas typically run 95-180 days, with each contract setting its own clock. Verified against the TMPPM claims filing chapter at tmhp.com on 17 September 2026. We build per-MCO workflows: Superior's portal for STAR+PLUS auth, Molina's separate prior auth fax line for cath lab procedures, UnitedHealthcare Community Plan's medical necessity documentation requirements for stress tests. The Insurance Code prompt-pay penalties do not reach traditional Medicaid or Medicaid HMO plans, but the state's own Medicaid timeliness rules do — and we track every clean claim against the relevant clock.

BCBSTX (a division of Health Care Service Corporation) anchors the Texas commercial cardiology payer mix. Whether your practice is in Houston, Dallas, San Antonio, Austin, Fort Worth, or El Paso, BCBSTX contracts shape your revenue more than any other single payer. Cardiology-specific BCBSTX behaviors we manage every day: prior auth requirements on cardiac imaging including stress echo and nuclear stress, modifier rules for global cardiology codes versus professional component (-26) versus technical component (-TC), and place-of-service edits that differ between hospital outpatient (POS 22), ambulatory surgery center (POS 24), and office-based cath labs (POS 11). BCBSTX uses eviCore and AIM Specialty Health (now Carelon) for high-tech imaging prior auth, which means stress echo (93306+93351) and nuclear cardiology codes need approval before scheduling. We keep templates aligned with BCBSTX medical policy bulletins and run weekly reconciliation against their fee schedule updates.

Texas draws no HMO/PPO line on prompt pay, and a cardiology billing operation that calendars one is calendaring the wrong deadline. Insurance Code 843.338 requires a health maintenance organization to determine and pay a clean claim from a participating physician not later than the 45th day after receipt of a non-electronic claim or the 30th day after an electronically submitted one; Section 1301.103 imposes word-for-word the same deadline on preferred provider benefit plans. The variable is submission format, not plan type. The penalty is not an interest rate either. Under Section 843.342 — and Section 1301.137 on the preferred provider side — a payer that misses the deadline 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 the 46th day and before the 91st day owes the lesser of 100 percent of that difference or $200,000; and a claim paid on or after the 91st day owes that penalty plus 18 percent annual interest on the penalty amount. Because the calculation runs off billed charges rather than the contracted rate, a Texas cardiology charge master is not a cosmetic document. Statutory text verified against statutes.capitol.texas.gov on 17 September 2026. For a practice billing 93458 (left heart cath) or 92928 (PCI with stent), the 30/45-day clock is the difference between predictable and lumpy cash flow. We track every clean claim against the date and format of receipt, flag stalled payments before the applicable deadline, and file TDI prompt-pay complaints when payers default.

Cardiology in Texas runs on the same CPT code set as anywhere else, but Texas-specific edits matter. 93458 (left heart cath with ventriculography) is a high-prior-auth code for BCBSTX and Aetna Texas — both use eviCore for cardiac imaging review. 93306 (complete echo with Doppler) needs the medical necessity documentation that Texas Medicaid MCOs request, especially for follow-up echos within 12 months of a prior. 93015 (cardiovascular stress test, complete) is bundled with -26/-TC component splits in office-based versus hospital settings — getting the modifier right is the difference between full reimbursement and a denial. 93295 (remote ICD interrogation) is one of the codes BCBSTX has tightened documentation requirements on in 2024-2025. 92928 (PCI with stent placement) is reported with the affected vessel modifier (-LD, -RC, -LC, -LM) and pairs with appropriate ICD-10 codes for symptomatic CAD. Texas Medicaid covers cardiac rehab (93798) but each MCO sets its own session limits and prior auth threshold.

Texas SB 1264 (effective 2020) was one of the earliest state surprise-billing protections, predating the federal No Surprises Act (NSA). For cardiology practices, the interaction matters: out-of-network emergency cardiac care, inpatient consults at in-network facilities, and air ambulance for cardiac emergencies are all caught by the protection regime. Where SB 1264 and the NSA overlap, the federal IDR process generally controls for most plans. Where they diverge, the Texas mediation process applies to state-regulated plans (about 30% of the Texas commercial market — most large employers are ERISA self-funded and fall under the NSA). We bill out-of-network cardiac emergency claims at the qualifying payment amount or median in-network rate as appropriate, file IDR or Texas mediation requests when reimbursement is below the benchmark, and document the medical necessity narrative each process requires.

Texas is enormous, and cardiology practice environments vary by region. Houston's Texas Medical Center hosts the world's largest concentration of cardiac care — Texas Heart Institute, Houston Methodist DeBakey, Memorial Hermann Heart & Vascular — and that density means competitive payer contracting and high-volume cath programs. Dallas-Fort Worth has Baylor Scott & White, Texas Health Resources, and Medical City driving payer dynamics. San Antonio is anchored by Methodist Healthcare, University Health, and Baptist. Austin's market is led by Ascension Seton, St. David's HealthCare, and Baylor Scott & White. West Texas (Lubbock, Amarillo, Midland-Odessa) and the Rio Grande Valley face severe provider shortages, higher uninsured rates, and a heavier Medicaid mix — billing in those markets means more emphasis on charity care, sliding fee schedules, and Medicaid MCO authorization workflows. Practice billing strategy adjusts to that geography.