John Thomas Brennan, MD
Family Medicine Physician · Somerset, PA
John Thomas Brennan, MD is a family medicine physician with a practice address in Somerset, Pennsylvania, and NPI 1306840178, issued on Jun 9, 2005. Check the license (Pennsylvania MD036009E, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- John Thomas Brennan
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD036009E PA
Self-reported in NPPES; status is on the state search - Practice location
- 4324 Glades Pike, Somerset, PA 15501
- Phone
- (814) 445-4585
- Enumerated
- Jun 9, 2005
- Record last updated
- Oct 17, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (814) 443-2642
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 7,483 in Pennsylvania → Look up another NPI →
Also registered at 4324 Glades Pike
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lee Dirienzo, PA-CMedical Physician Assistant1700150133
- Robert Kramer, MDInternal Medicine Physician1225029960
- Tanya Sargent, CRNPFamily Nurse Practitioner1134671720
- Cheryl Spangler, CRNPFamily Nurse Practitioner1134126584
Verify John Thomas Brennan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD036009ECheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average family medicine physician in 2024
150 Medicare Part D claims for 61 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Levothyroxine Sodium14 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 Thomas Brennan among 7,483 family medicine physician records in Pennsylvania
John Thomas Brennan, MD 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 61% of these records are
- Record last updated2014 · 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).
11 family medicine physician records list a practice address in Somerset
They are 11 of the 424 NPPES records with a practice address in Somerset, and 7,483 family medicine physician records in Pennsylvania.
All 7,483 in Pennsylvania → Every provider in Somerset → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Zachary Ankney, M.D.Somerset, PA 155011982131157
- Rita Camacho, MDSomerset, PA 155011154334654
- Yuko Gibson, MDSomerset, PA 155011538781919
- Marlo Marcheleovich, D.O.Somerset, PA 155011326240409
- Taylor Morrow, MSN, FNP-CSomerset, PA 155011700300274
- John NicholsonSomerset, PA 155011336152842
- Christopher Poggi, D.O.Somerset, PA 155011750577151
- Paul Serra, MDSomerset, PA 155011811938418
Common questions
What is John Thomas Brennan, MD's NPI number?
John Thomas Brennan, MD's National Provider Identifier (NPI) is 1306840178, issued on Jun 9, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Thomas Brennan, MD located?
The NPPES record lists a practice address at 4324 Glades Pike, Somerset, PA, 15501. Phone: (814) 445-4585. Providers update this record themselves, so call before visiting.
How can I verify John Thomas Brennan, MD's license?
NPPES lists Pennsylvania license number MD036009E, 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 Thomas Brennan, MD prescribe under Medicare Part D?
In 2024, John Thomas Brennan, MD had 150 Medicare Part D claims for 61 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.