John Muscalus, DO
NPI 1710919774 · Family Medicine Physician · Hummelstown, PA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Muscalus, DO is a Family Medicine Physician provider in Hummelstown, PA (NPI 1710919774).
Provider details
- NPI number
- 1710919774
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- OS 005054 L (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 27 | 21 |
| Simvastatin | 17 | 14 |
| Amlodipine Besylate | 16 | 14 |
| Metoprolol Succinate | 15 | 11 |
| Omeprazole | 14 | — |
| Metformin Hcl | 13 | — |
| Escitalopram Oxalate | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-07
- Last updated
- 2008-06-25
Frequently asked questions
- What is John Muscalus's NPI number?
- John Muscalus's National Provider Identifier (NPI) is 1710919774, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Muscalus's specialty?
- John Muscalus is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Muscalus located?
- John Muscalus's practice location on file with NPPES is 655 Hershey Rd, Hummelstown, PA 17036-9243.
- What is John Muscalus's phone number?
- The practice phone number listed in the NPPES registry for John Muscalus is (717) 566-3796.
- Does John Muscalus accept Medicare?
- John Muscalus is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Muscalus's NPI active?
- Yes — John Muscalus's NPI (1710919774) is active in the NPPES registry as of the last update on 2008-06-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.