Quick answers
- Which hospitals does Mark Poag work at?
- Medicare's official clinician data lists Mark Poag at 1 hospital: CHRISTUS Santa Rosa Hospital-San Marcos. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark Poag see patients?
- Medicare's clinician data lists 4 practice locations, including Austin, TX and San Marcos, TX. Call before your visit to confirm the address.
- What is Mark Poag's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Mark Poag accept Medicare assignment?
- Yes. Medicare's clinician data says Mark Poag 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 Mark Poag?
- (512) 519-3457, as listed in official Medicare / NPI Registry data.
- What is Mark Poag's NPI number?
- 1790756708. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark Poag works
Medicare's Facility Affiliation Data lists Mark Poag at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- CHRISTUS Santa Rosa Hospital-San MarcosSan Marcos, TX · Acute Care Hospital · CCN 450272
Practice locations
Addresses where Mark Poag is enrolled with Medicare (CMS data updated 2026-10-02).
- 11714 Wilson Parke Ave, 175 Austin Radiological Association WilsonAustin, TX 78726 (512) 519‑3457
- 1348 N Hwy 123, Suite BSan Marcos, TX 78666 (512) 392‑1831
- 7409 Seneca Falls LoopAustin, TX 78739 (512) 795‑5100
- 919 E 32nd StAustin, TX 78705 (713) 461‑3573
Group practices
Medicare enrollment lists Mark Poag as a member of these groups (CMS data updated 2026-10-02).
- Singleton Associates PA838 clinicians in the group
- Austin Radiological Association127 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Austin
Clinicians with the same Medicare primary specialty in Austin, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical School At San Antonio |
| Graduation year | 1983 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1790756708 |
| 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