John E. Muscalus, DO
Family Medicine Physician · Hummelstown, PA
John E. Muscalus, DO is a family medicine physician with a practice address in Hummelstown, Pennsylvania, and NPI 1710919774, issued on Jul 7, 2006. Check the license (Pennsylvania OS 005054 L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- John E. Muscalus
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- OS 005054 L PA
Self-reported in NPPES; status is on the state search - Practice location
- 655 Hershey RD, Hummelstown, PA 17036
- Phone
- (717) 566-3796
- Enumerated
- Jul 7, 2006
- Record last updated
- Jun 25, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (717) 566-0576
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 7,483 in Pennsylvania → Look up another NPI →
Also registered at 655 Hershey RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shanda Powell, FNB-BCFamily Nurse Practitioner1003635400
- Joseph Thomas, DOFamily Medicine Physician1316459480
Verify John E. Muscalus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS 005054 LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average family medicine physician in 2024
307 Medicare Part D claims for 155 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Atorvastatin Calcium27 claims
- Simvastatin17 claims
- Amlodipine Besylate16 claims
- Metoprolol Succinate15 claims
- Omeprazole14 claims
- Metformin Hcl13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
John E. Muscalus among 7,483 family medicine physician records in Pennsylvania
John E. Muscalus, DO is one of 7,483 family medicine physician records with a practice address in Pennsylvania. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 53% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 61% of these records are
- Record last updated2008 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 family medicine physician records list a practice address in Hummelstown
They are 8 of the 322 NPPES records with a practice address in Hummelstown, and 7,483 family medicine physician records in Pennsylvania.
All 7,483 in Pennsylvania → Every provider in Hummelstown → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Todd Fisher, MDHummelstown, PA 170361336104504
- Dudley Gordon, MDHummelstown, PA 170361245298074
- Mark Lauer, M.D.Hummelstown, PA 170361134288053
- Marko Miljkovic, M.D.Hummelstown, PA 170361821208414
- Sean Rhoads, PA-CHummelstown, PA 170361548227499
- Joseph Thomas, DOHummelstown, PA 170361316459480
- Timothy Warren, DOHummelstown, PA 170361902435373
- Larry Espenshade, DOHighspire, PA 170341326010786
Common questions
What is John E. Muscalus, DO's NPI number?
John E. Muscalus, DO's National Provider Identifier (NPI) is 1710919774, issued on Jul 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John E. Muscalus, DO located?
The NPPES record lists a practice address at 655 Hershey RD, Hummelstown, PA, 17036. Phone: (717) 566-3796. Providers update this record themselves, so call before visiting.
How can I verify John E. Muscalus, DO's license?
NPPES lists Pennsylvania license number OS 005054 L, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John E. Muscalus, DO prescribe under Medicare Part D?
In 2024, John E. Muscalus, DO had 307 Medicare Part D claims for 155 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.