Quick answers
- Which hospitals does David Sommerhalder work at?
- Medicare's official clinician data lists David Sommerhalder at 1 hospital: Methodist Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does David Sommerhalder see patients?
- Medicare's clinician data lists 2 practice locations, including Austin, TX and San Antonio, TX. Call before your visit to confirm the address.
- What is David Sommerhalder's specialty?
- Medicare lists Hematology/Oncology as the primary specialty, and also Internal Medicine and Medical Oncology.
- Does David Sommerhalder accept Medicare assignment?
- Yes. Medicare's clinician data says David Sommerhalder 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 David Sommerhalder offer telehealth?
- Medicare's clinician data says David Sommerhalder offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for David Sommerhalder?
- (512) 873-8900, as listed in official Medicare / NPI Registry data.
- What is David Sommerhalder's NPI number?
- 1821417270. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where David Sommerhalder works
Medicare's Facility Affiliation Data lists David Sommerhalder at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Methodist HospitalSan Antonio, TX · Acute Care Hospital · CCN 450388
Practice locations
Addresses where David Sommerhalder is enrolled with Medicare (CMS data updated 2026-10-02).
- 12221 Renfert Way, Suite 120Austin, TX 78758 (512) 873‑8900
- 2829 Babcock Rd, Suite 300San Antonio, TX 78229 (210) 580‑9544
Group practices
Medicare enrollment lists David Sommerhalder as a member of this group (CMS data updated 2026-10-02).
- Texas Oncology PA1,014 clinicians in the group
Specialties
- Hematology/Oncologyprimary
- Internal Medicinealso
- Medical Oncologyalso
Other hematologist-oncologists in Austin
Clinicians with the same Medicare primary specialty in Austin, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2013 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1821417270 |
| 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