John Mast, M.D.
NPI 1154392371 · Family Medicine Physician · Elizabethtown, PA
Enrolled with Medicare as Practitioner - Geriatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Mast, M.D. is a Family Medicine Physician provider in Elizabethtown, PA (NPI 1154392371).
Provider details
- NPI number
- 1154392371
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD066311L (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
853 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 320 | $102 |
| Prolonged Nursing Facility Evaluation and Management Service(s) Beyond the Total Time for the Primary Service (when the Primary Service Has Been Selected Using Time on the Date of the Primary Service); Each Additional 15 Minutes By the Physician Or QualifiG0317 | 137 | $29 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 129 | $70 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 114 | $172 |
| Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 108 | $145 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 105 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Memantine Hcl | 269 | 40 |
| Apixabanbrand: Eliquis | 231 | 42 |
| Levothyroxine Sodium | 228 | 45 |
| Gabapentin | 176 | 38 |
| Metoprolol Succinate | 149 | 29 |
| Amlodipine Besylate | 140 | 24 |
| Escitalopram Oxalate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-27
- Last updated
- 2007-10-25
Frequently asked questions
- What is John Mast's NPI number?
- John Mast's National Provider Identifier (NPI) is 1154392371, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Mast's specialty?
- John Mast is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Mast located?
- John Mast's practice location on file with NPPES is 418 Cloverleaf Rd, Elizabethtown, PA 17022-9320.
- What is John Mast's phone number?
- The practice phone number listed in the NPPES registry for John Mast is (717) 653-1467.
- Does John Mast accept Medicare?
- John Mast is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Mast's NPI active?
- Yes — John Mast's NPI (1154392371) is active in the NPPES registry as of the last update on 2007-10-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.