Quick answers
- Which hospitals does John M. Pfeifer work at?
- Medicare's official clinician data lists John M. Pfeifer at 2 hospitals: Geisinger Medical Center and WellSpan Evangelical Community Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John M. Pfeifer see patients?
- Medicare's clinician data lists 3 practice locations, including Lewisburg, PA and York, PA. Call before your visit to confirm the address.
- What is John M. Pfeifer's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does John M. Pfeifer accept Medicare assignment?
- Yes. Medicare's clinician data says John M. Pfeifer 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 John M. Pfeifer's NPI number?
- 1104845395. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John M. Pfeifer works
Medicare's Facility Affiliation Data lists John M. Pfeifer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Geisinger Medical CenterDanville, PA · Acute Care Hospital · CCN 390006
- WellSpan Evangelical Community HospitalLewisburg, PA · Acute Care Hospital · CCN 390013
Practice locations
Addresses where John M. Pfeifer is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Hospital DrLewisburg, PA 17837
- 25 Monument RdYork, PA 17403
- 3 Hospital DrLewisburg, PA 17837
Group practices
Medicare enrollment lists John M. Pfeifer as a member of these groups (CMS data updated 2026-10-02).
- WellSpan Medical Group2,480 clinicians in the group
- Evangelical Medical Services Organization248 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Pennsylvania →
Other cardiologists in Lewisburg
Clinicians with the same Medicare primary specialty in Lewisburg, PA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Maryland School Of Medicine |
| Graduation year | 2003 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1104845395 |
| 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