Quick answers
- Which hospitals does Matthias Sommer work at?
- Medicare's official clinician data lists Matthias Sommer at 2 hospitals: Hospital of University of Pennsylvania and Temple University Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Matthias Sommer see patients?
- Medicare's clinician data lists 4 practice locations, including Philadelphia, PA, Wernersville, PA and Phila, PA. Call before your visit to confirm the address.
- What is Matthias Sommer's specialty?
- Medicare lists Psychiatry as the primary specialty.
- Does Matthias Sommer accept Medicare assignment?
- Yes. Medicare's clinician data says Matthias Sommer 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 Matthias Sommer?
- (215) 707-0637, as listed in official Medicare / NPI Registry data.
- What is Matthias Sommer's NPI number?
- 1295046241. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Matthias Sommer works
Medicare's Facility Affiliation Data lists Matthias Sommer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hospital of University of PennsylvaniaPhiladelphia, PA · Acute Care Hospital · CCN 390111
- Temple University HospitalPhiladelphia, PA · Acute Care Hospital · CCN 390027
Practice locations
Addresses where Matthias Sommer is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 E Lehigh AvePhiladelphia, PA 19125 (215) 707‑0637
- 160 Main StWernersville, PA 19565 (610) 670‑4100
- 3400 Spruce StPhiladelphia, PA 19104 (215) 662‑7119
- 8835 Germantown AvePhila, PA 19118 (215) 707‑2098
Group practices
Medicare enrollment lists Matthias Sommer as a member of these groups (CMS data updated 2026-10-02).
- University of Penn - Medical Group3,505 clinicians in the group
- Temple Faculty Practice Plan Inc1,368 clinicians in the group
- Pennsylvania Department of Human Services35 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Philadelphia
Clinicians with the same Medicare primary specialty in Philadelphia, PA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1295046241 |
| 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