David Earl McMahon, M.D.
Individual provider Active NPI Internal Medicine Physician · Grove City, OH
NPI 1033174339 · NPPES record last updated Sep 30, 2025
Key facts
- NPI
- 1033174339
- Entity type
- Individual (NPI type 1)
- Primary specialty
- Internal Medicine Physician 207R00000X
- License
- 35063725 (OH)
- Practice address
- 4191 Kelnor Dr Ste 300
Grove City, OH 43123-3990 - Phone
- (614) 875-6349
- Fax
- (614) 875-3633
- NPI assigned
- Apr 19, 2006
- Sex
- Male
- Sole proprietor
- No
Organizations & group practices 4
Hospital & facility affiliations 5
Medicare Care Compare profile
- Specialty
- Internal Medicine
- Education
- University of Chicago, Pritzker School of Medicine, 1978
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
- Ohiohealth Corporation
Practice addresses (Care Compare)
600 N Pickaway St
Suite 102
Circleville, OH 43113-1499
Phone (740) 420-8174
Hospital & facility affiliations
- Mount Carmel Home Care
- Berger Hospital
- Riverside Methodist Hospital
- Doctors Hospital
Medicare participation
- Medicare fee-for-service enrollment
- Enrolled in OH
- Eligible to order & refer
- Part B services: Yes · DME: Yes · Home health: Yes · Power mobility devices: Yes · Hospice: Yes
Medicare enrollment records
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20090529000434 | OH | Practitioner - Internal Medicine | 2264581867 | Reassigns benefits to 1 organization |
National Provider Directory
- Medicare enrollment (NPD)
- Yes
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 35063725 | OH | MD | Internal Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Ohiohealth Corporation | Current |
Accepting new patients | |
| Ohiohealth Corporation | Current |
Accepting new patients | |
| Ohiohealth Corporation | Internal Medicine | Current | Accepting new patients |
| Pickaway Health Services | Past |
Accepting new patients |
Locations
600 N Pickaway St
Ste 203
Circleville, OH 43113
Phone (740) 420-8365
600 N Pickaway St
Circleville, OH 43113
Phone (614) 352-6479
600 N Pickaway St
Ste 102
Circleville, OH 43113
Phone (740) 420-8174
393 E Town St
Ste 116
Columbus, OH 43215
Phone (614) 566-9108
Dept L3652
Columbus, OH 43260
5450 Frantz Rd
Ste 360
Dublin, OH 43016
Phone (614) 533-6497
4191 Kelnor Dr
Ste 300
Grove City, OH 43123
Phone (614) 875-3592
9085 Southern St
Ste A
Orient, OH 43146
Phone (614) 277-4652
9085 Southern St
Ste 150
Orient, OH 43146
Phone (614) 277-4670
500 S Cleveland Ave
Westerville, OH 43081
Phone (380) 898-4000
Specialties & licenses
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | 35063725 | OH | Yes |
Addresses
Primary practice location
4191 Kelnor Dr Ste 300
Grove City, OH 43123-3990
Mailing address
PO Box 7527
Dublin, OH 43017-0727
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0890111 | Medicaid | OH |
Electronic endpoints
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | dmcmahon373832@direct.ohiohealth.com | OhioHealth Physician Group |
Other providers in Grove City, OH
- Rebecca McGovern
- Christine Ann McKee
- Elizabeth McKinney
- Michael David McLaughlin
- Tiffany Nicole McLaughlin
- Joanne M McMaken
- Scott McMaken
- Erin Justine McManus
- Rebecca C McNeil
- Andrew Joel McPherson
All providers in Grove City, OH · Internal Medicine Physician in Ohio
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Record last updated by the provider on Sep 30, 2025. Information in NPPES is self-reported and not verified by CMS.
- NUCC Health Care Provider Taxonomy: specialty names.
- Medicare Fee-For-Service Public Provider Enrollment (CMS/PECOS): enrollments, PAC IDs and benefit reassignments.
- Order and Referring (CMS).
- Medicare Care Compare provider data (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.