Quick answers
- Which hospitals does Stewart L. Schaefer work at?
- Medicare's official clinician data lists Stewart L. Schaefer at 2 hospitals: Ascension Seton Medical Center Austin 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 Stewart L. Schaefer see patients?
- Medicare's clinician data lists 1 practice location in Austin, TX. Call before your visit to confirm the address.
- What is Stewart L. Schaefer's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Stewart L. Schaefer accept Medicare assignment?
- Yes. Medicare's clinician data says Stewart L. Schaefer 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 Stewart L. Schaefer?
- (512) 324-7000, as listed in official Medicare / NPI Registry data.
- What is Stewart L. Schaefer's NPI number?
- 1669867834. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Stewart L. Schaefer works
Medicare's Facility Affiliation Data lists Stewart L. Schaefer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension Seton Medical Center AustinAustin, TX · Acute Care Hospital · CCN 450056
- Dell Seton Medical Center at the University of TXAustin, TX · Acute Care Hospital · CCN 450124
Practice locations
Addresses where Stewart L. Schaefer is enrolled with Medicare (CMS data updated 2026-10-02).
- 1500 Red River StAustin, TX 78701 (512) 324‑7000
Group practices
Medicare enrollment lists Stewart L. Schaefer as a member of this group (CMS data updated 2026-10-02).
- Seton Family of Doctors792 clinicians in the group
Specialties
- Internal Medicineprimary
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 | University Of Texas Medical School At San Antonio |
| Graduation year | 2015 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1669867834 |
| 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