Quick answers
- Which hospitals does Gregory W. Yost work at?
- Medicare's official clinician data lists Gregory W. Yost at 5 hospitals: Geisinger Jersey Shore Hospital, Geisinger Medical Center, Geisinger-Bloomsburg Hospital, Geisinger-Lewistown Hospital and WellSpan Evangelical Community Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gregory W. Yost see patients?
- Medicare's clinician data lists 4 practice locations, including Lewisburg, PA, Danville, PA and Montoursville, PA. Call before your visit to confirm the address.
- What is Gregory W. Yost's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Gregory W. Yost accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory W. Yost 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 Gregory W. Yost?
- (570) 271-6211, as listed in official Medicare / NPI Registry data.
- What is Gregory W. Yost's NPI number?
- 1558500280. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gregory W. Yost works
Medicare's Facility Affiliation Data lists Gregory W. Yost at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Geisinger Jersey Shore HospitalJersey Shore, PA · Critical Access Hospital · CCN 391300
- Geisinger Medical CenterDanville, PA · Acute Care Hospital · CCN 390006
- Geisinger-Bloomsburg HospitalBloomsburg, PA · Acute Care Hospital · CCN 390003
- Geisinger-Lewistown HospitalLewistown, PA · Acute Care Hospital · CCN 390048
- WellSpan Evangelical Community HospitalLewisburg, PA · Acute Care Hospital · CCN 390013
Practice locations
Addresses where Gregory W. Yost is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Hospital DrLewisburg, PA 17837
- 100 N Academy AveDanville, PA 17822 (570) 271‑6211
- 3 Hospital DrLewisburg, PA 17837
- 780 Broad StMontoursville, PA 17754 (570) 368‑2870
Group practices
Medicare enrollment lists Gregory W. Yost as a member of these groups (CMS data updated 2026-10-02).
- Geisinger Clinic3,467 clinicians in the group
- Geisinger-Hm Joint Venture LLC422 clinicians in the group
- Evangelical Medical Services Organization248 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Lewisburg
Clinicians with the same Medicare primary specialty in Lewisburg, PA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Lake Erie College Of Osteopathic Medicine, Erie |
| Graduation year | 2009 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1558500280 |
| 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