Quick answers
- Which hospitals does Ernest A. Haeusslein work at?
- Medicare's official clinician data lists Ernest A. Haeusslein at 4 hospitals: Ascension Seton Hays, Ascension Seton Medical Center Austin, Ascension Seton Northwest and Dell Seton Medical Center at the University of TX. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ernest A. Haeusslein see patients?
- Medicare's clinician data lists 11 practice locations, including Austin, TX, Georgetown, TX and Round Rock, TX. Call before your visit to confirm the address.
- What is Ernest A. Haeusslein's specialty?
- Medicare lists Advanced Heart Failure and Transplant Cardiology as the primary specialty.
- Does Ernest A. Haeusslein accept Medicare assignment?
- Yes. Medicare's clinician data says Ernest A. Haeusslein accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Ernest A. Haeusslein?
- (512) 324-3580, as listed in official Medicare / NPI Registry data.
- What is Ernest A. Haeusslein's NPI number?
- 1780617571. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ernest A. Haeusslein works
Medicare's Facility Affiliation Data lists Ernest A. Haeusslein at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension Seton HaysKyle, TX · Acute Care Hospital · CCN 670056
- Ascension Seton Medical Center AustinAustin, TX · Acute Care Hospital · CCN 450056
- Ascension Seton NorthwestAustin, TX · Acute Care Hospital · CCN 450867
- Dell Seton Medical Center at the University of TXAustin, TX · Acute Care Hospital · CCN 450124
Practice locations
Addresses where Ernest A. Haeusslein is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 11; the Medicare profile lists all.
- 1004 W 32nd St, 200 Ascension Texas Spine and ScoliosisAustin, TX 78705 (512) 324‑3580
- 1101 Wolf Lake DrGeorgetown, TX 78628
- 11113 Research BlvdAustin, TX 78759 (512) 324‑6000
- 1201 W 38th StAustin, TX 78705
- 1301 W 38th St, 514 Tri County Prac AssocAustin, TX 78705 (512) 681‑0500
Group practices
Medicare enrollment lists Ernest A. Haeusslein as a member of this group (CMS data updated 2026-10-02).
- Seton Family of Doctors792 clinicians in the group
Specialties
Find other Advanced Heart Failure and Transplant Cardiology doctors in Texas →
Other heart failure and transplant cardiologists in Austin
Clinicians with the same Medicare primary specialty in Austin, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1981 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1780617571 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians