Gregory McMahon, D.O.
Urology Physician · Wynnewood, PA
Gregory McMahon, D.O. is a urology physician with a practice address in Wynnewood, Pennsylvania, and NPI 1295116218, issued on Jun 16, 2015. Check the license on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Gregory McMahon
- Credential
- D.O.
- Primary taxonomy
- Urology Physician 208800000X
- License number
- 64741 CT
Self-reported in NPPES; status is on the state search - Practice location
- 100 E Lancaster Ave, Wynnewood, PA 19096
- Phone
- (610) 649-6420
- Enumerated
- Jun 16, 2015
- Record last updated
- Jan 16, 2023
- Medicare enrollment
- Enrolled (PECOS I20210519002185); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 2015
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest urology physician records → All 663 in Pennsylvania → Look up another NPI →
Also registered at 100 E Lancaster Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nicholas Abate, DOStudent in an Organized Health Care Education/Training Program1508568676
- John Abramson, M.D.Gastroenterology Physician1710953633
- Sandra Abramson, MDCardiovascular Disease Physician1275538282
- Olivia Ackley, MDInternal Medicine Physician1174453930
- Ashley Adams, CRNPWomen's Health Nurse Practitioner1497225635
- Bonnie Adelman, M.S.P.A.Audiologist1568718088
Verify Gregory McMahon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)Check the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% more Medicare Part D claims than the average urology physician in 2024
2,088 Medicare Part D claims for 492 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims.
Most prescribed
- Tamsulosin Hcl653 claims
- Orgovyx276 claims
- Finasteride176 claims
- Erleada155 claims
- Abiraterone Acetate94 claims
- Xtandi80 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 92.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $18,448.93
121 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 9,340 providers of this specialty with any payment received $3,800.04 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- The Centers For Advanced Urology LLPPlymouth Meeting, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory McMahon among 663 urology physician records in Pennsylvania
Gregory McMahon, D.O. is one of 663 urology physician records with a practice address in Pennsylvania. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 73% of them.
- NPI issued2015 · 73% of these records are older, 24% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2015 · median 2004 among the 420 with a school on file
- Record last updated2023 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Urology Physician providers in Pennsylvania
There are 663 urology physician records in Pennsylvania.
All 663 in Pennsylvania → Every provider in Wynnewood → Urology Physician nationwide →
The 8 urology physician records with the nearest ZIP codes
- Max Ahn, M.D.Wynnewood, PA 190961548224462
- Darlene Gaynor Krupnick, DOWynnewood, PA 190961629097803
- Alex Gordon, DOWynnewood, PA 190961801636972
- Michael Hagg, M.D.Wynnewood, PA 190961477518991
- Matthew Klein, MDPenn Wynne, PA 190961700680089
- Robert Schnall, M.D.Wynnewood, PA 190961275598583
- Jennifer Sherwood, MDWynnewood, PA 190961205851193
- Brian Thomas, DO, PHARMDWynnewood, PA 190961851836134
Common questions
What is Gregory McMahon, D.O.'s NPI number?
Gregory McMahon, D.O.'s National Provider Identifier (NPI) is 1295116218, issued on Jun 16, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Gregory McMahon, D.O. located?
The NPPES record lists a practice address at 100 E Lancaster Ave, Wynnewood, PA, 19096. Phone: (610) 649-6420. Providers update this record themselves, so call before visiting.
How can I verify Gregory McMahon, D.O.'s license?
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 Gregory McMahon, D.O. prescribe under Medicare Part D?
In 2024, Gregory McMahon, D.O. had 2,088 Medicare Part D claims for 492 beneficiaries; the average among urology physician prescribers was 1,340. Part D covers Medicare prescriptions only.
What is Gregory McMahon, D.O.'s MIPS final score?
The 2023 MIPS final score is 92.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.