Quick answers
- Which hospitals does John Dallas work at?
- Medicare's official clinician data lists John Dallas at 4 hospitals: Ascension Seton Hays, Ascension Seton Medical Center Austin, Ascension Seton Williamson and St David's Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Dallas see patients?
- Medicare's clinician data lists 3 practice locations, including Austin, TX. Call before your visit to confirm the address.
- What is John Dallas's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Critical Care (Intensivists).
- Does John Dallas accept Medicare assignment?
- Yes. Medicare's clinician data says John Dallas 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.
- Does John Dallas offer telehealth?
- Medicare's clinician data says John Dallas offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John Dallas?
- (512) 324-6000, as listed in official Medicare / NPI Registry data.
- What is John Dallas's NPI number?
- 1972687127. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John Dallas works
Medicare's Facility Affiliation Data lists John Dallas 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 WilliamsonRound Rock, TX · Acute Care Hospital · CCN 670041
- St David's Medical CenterAustin, TX · Acute Care Hospital · CCN 450431
Practice locations
Addresses where John Dallas is enrolled with Medicare (CMS data updated 2026-10-02).
- 11113 Research BlvdAustin, TX 78759 (512) 324‑6000
- 1201 W 38th StAustin, TX 78705 (512) 324‑1017
- 1301 W 38th St, 700 Tri County Practice AssociationAustin, TX 78705 (512) 324‑3380
Group practices
Medicare enrollment lists John Dallas as a member of these groups (CMS data updated 2026-10-02).
- Seton Family of Doctors792 clinicians in the group
- Usacs Critical Care Medicine Services of Texas PLLC75 clinicians in the group
Specialties
Other internal medicine doctors in Austin
Clinicians with the same Medicare primary specialty in Austin, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Baylor College Of Medicine |
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1972687127 |
| 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