Quick answers
- Where does Jacob T. Witmer see patients?
- Medicare's clinician data lists 3 practice locations, including Mechanicsburg, PA, Carlisle, PA and Harrisburg, PA. Call before your visit to confirm the address.
- What is Jacob T. Witmer's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Jacob T. Witmer accept Medicare assignment?
- Yes. Medicare's clinician data says Jacob T. Witmer 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 Jacob T. Witmer?
- (717) 231-8772, as listed in official Medicare / NPI Registry data.
- What is Jacob T. Witmer's NPI number?
- 1548096076. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Jacob T. Witmer is enrolled with Medicare (CMS data updated 2026-10-02).
- 1995 Technology PkwyMechanicsburg, PA 17050 (717) 231‑8772
- 361 Alexander Spring RdCarlisle, PA 17015 (717) 231‑8772
- 4300 Londonderry RdHarrisburg, PA 17109 (717) 657‑7332
Group practices
Medicare enrollment lists Jacob T. Witmer as a member of this group (CMS data updated 2026-10-02).
- Pinnacle Health Hospitalist Services LLC177 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Mechanicsburg
Clinicians with the same Medicare primary specialty in Mechanicsburg, PA — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2024 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548096076 |
| 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
- 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