David Mcmahon, M.D.
NPI 1033174339 · Internal Medicine Physician · Grove City, OH
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Mcmahon, M.D. is a Internal Medicine Physician provider in Grove City, OH (NPI 1033174339).
Provider details
- NPI number
- 1033174339
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 35063725 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
431 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 153 | $75 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 119 | $90 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 69 | $29 |
| Hemoglobin A1c Level83036 | 47 | $9 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 29 | $16 |
| Administration of Influenza Virus Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 96 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 357 | 96 |
| Lisinopril | 311 | 84 |
| Gabapentin | 203 | 44 |
| Amlodipine Besylate | 197 | 57 |
| Losartan Potassium | 187 | 53 |
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 159 | 14 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-19
- Last updated
- 2025-09-30
- Certified
- 2025-09-30
Frequently asked questions
- What is David Mcmahon's NPI number?
- David Mcmahon's National Provider Identifier (NPI) is 1033174339, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Mcmahon's specialty?
- David Mcmahon is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is David Mcmahon located?
- David Mcmahon's practice location on file with NPPES is 4191 Kelnor Dr Ste 300, Grove City, OH 43123-3990.
- What is David Mcmahon's phone number?
- The practice phone number listed in the NPPES registry for David Mcmahon is (614) 875-6349.
- Does David Mcmahon accept Medicare?
- David Mcmahon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Mcmahon's NPI active?
- Yes — David Mcmahon's NPI (1033174339) is active in the NPPES registry as of the last update on 2025-09-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.