David Earl McMahon, M.D.
Internal Medicine Physician · Grove City, OH
David Earl McMahon, M.D. is an internal medicine physician with a practice address in Grove City, Ohio, and NPI 1033174339, issued on Apr 19, 2006. Check the license (Ohio 35063725, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- David Earl McMahon
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 35063725 OH
Self-reported in NPPES; status is on the state search - Practice location
- 4191 Kelnor Dr Ste 300, Grove City, OH 43123
- Phone
- (614) 875-6349
- Enumerated
- Apr 19, 2006
- Record last updated
- Sep 30, 2025
- Fax
- (614) 875-3633
- Medicaid ID
- 0890111 OH
- Medicare enrollment
- Enrolled (PECOS I20090529000434); accepts Medicare assignment
- Medical or professional school
- University Of Chicago, Pritzker School Of Medicine, 1978
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,277 in Ohio → Look up another NPI →
Also registered at 4191 Kelnor Dr Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mabel Aggoe-OpokuFamily Nurse Practitioner1477877645
- Alivia Benfield, FNPFamily Nurse Practitioner1669047593
- Emilia Bowers, PA-CPhysician Assistant1003596305
- Brandi Brenner, CNPFamily Nurse Practitioner1184146854
- Carolyn Comes, MDFamily Medicine Physician1306473822
- Jennifer Garber, NPFamily Nurse Practitioner1922658780
Verify David Earl McMahon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35063725Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% more Medicare Part D claims than the average internal medicine physician in 2024
5,300 Medicare Part D claims for 327 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 175 claims were for opioids.
Most prescribed
- Atorvastatin Calcium357 claims
- Lisinopril311 claims
- Gabapentin203 claims
- Amlodipine Besylate197 claims
- Losartan Potassium187 claims
- Buprenorphine-Naloxone159 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.
Bills Medicare through one group practice
- Ohiohealth CorporationCircleville, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Earl McMahon among 5,277 internal medicine physician records in Ohio
David Earl McMahon, M.D. is one of 5,277 internal medicine physician records with a practice address in Ohio. 81% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 55% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated1978 · median 2006 among the 3,414 with a school on file
- Record last updated2025 · 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 207R00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
24 internal medicine physician records list a practice address in Grove City
They are 24 of the 1,237 NPPES records with a practice address in Grove City, and 5,277 internal medicine physician records in Ohio.
All 5,277 in Ohio → Every provider in Grove City → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Luiza Bdoyan, MDGrove City, OH 431231174866404
- Agatha Beynen, MDGrove City, OH 431231972571057
- Rohit Chand, M.DGrove City, OH 431231285991976
- Binay Eapen, M.D.Grove City, OH 431231255591228
- Gerad Gray, D.OGrove City, OH 431231639598246
- Vijay Jain, MDGrove City, OH 431231093709941
- Kristen Landry, MDGrove City, OH 431231922411289
- Perry Lin, M.D.Grove City, OH 431231649513193
Common questions
What is David Earl McMahon, M.D.'s NPI number?
David Earl McMahon, M.D.'s National Provider Identifier (NPI) is 1033174339, issued on Apr 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David Earl McMahon, M.D. located?
The NPPES record lists a practice address at 4191 Kelnor Dr Ste 300, Grove City, OH, 43123. Phone: (614) 875-6349. Providers update this record themselves, so call before visiting.
How can I verify David Earl McMahon, M.D.'s license?
NPPES lists Ohio license number 35063725, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does David Earl McMahon, M.D. prescribe under Medicare Part D?
In 2024, David Earl McMahon, M.D. had 5,300 Medicare Part D claims for 327 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.