John J. Mast, M.D.
NPI 1154392371ActiveIndividual· Family Medicine· Elizabethtown, PA
Family Medicine (M.D.) in Elizabethtown, Pennsylvania, trained at Indiana University School of Medicine (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $402,143 for 4,818 claims, against $66,944 paid for services in 2024.
Overview
| NPI | 1154392371 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 27, 2006 |
| Last updated in NPPES | Oct 25, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | MD066311L | PA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Geriatric Medicine (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 218 |
|---|---|
| Services billed | 889 across 13 procedure codes |
| Paid by Medicare | $66,944 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,818 · 4,918 30-day fills |
|---|---|
| Patients | 290 |
| Total drug cost | $402,143 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | Indiana University School of Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Geriatric Medicine |
| Secondary specialties | Family Practice |
Medical group
- Lancaster General HospitalLancaster, PA · 520 clinicians
Hospital affiliation
- Lancaster General HospitalLancaster, PA
Other facilities
- Masonic Village HospiceHospice · Elizabethtown, PA
- Masonic Village at ElizabethtownNursing home · Elizabethtown, PA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other family medicine physicians in Elizabethtown
- 1194741082
- 1386852895
- 1508392440
- 1801380993
- 1902848948
- 1942260435
- 1083694533
- 1144908302
- 1164401436
- 1174757744
- 1194173492
- 1245219625
All 40 family medicine physicians in Elizabethtown · All family medicine physicians in Pennsylvania