Aaron Michael Gerstenmaier, M.D.
NPI 1851602767ActiveIndividual· Family Medicine· Colmar Manor, MD
Family Medicine (M.D.) in Colmar Manor, Maryland, trained at Ohio State University College of Medicine (class of 2010). Their prescriptions cost Medicare Part D more than their services did: $1,031,334 for 1,867 claims, against $4,253 paid for services in 2024. Viiv Healthcare Company reported $24,395 in payments in 2025, mostly speaking and faculty fees.
Overview
| NPI | 1851602767 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 24, 2010 |
| Last updated in NPPES | Sep 13, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | MD041031 | DC |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Family Practice (DC); Practitioner - Family Practice (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 45 |
|---|---|
| Services billed | 90 across 23 procedure codes |
| Paid by Medicare | $4,253 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,867 · 3,005 30-day fills |
|---|---|
| Patients | 108 |
| Total drug cost | $1,031,334 |
| Generic share | 72% of claims |
Education and affiliations
| Medical school | Ohio State University College of Medicine |
|---|---|
| Graduation year | 2010 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical groups
- Medstar Urgent Care LLCWheaton, MD · 300 clinicians
- Community of Hope, IncWashington, DC · 58 clinicians
- Optimum Health LLCAlexandria, VA · 6 clinicians
Industry payments (Open Payments)
- 2025$24,395 · 30 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Viiv Healthcare Company | $24,395 | 30 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$20,800 · 5 payments
- Travel and Lodging$2,473 · 10 payments
- Food and Beverage$1,122 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 15 family medicine physicians in Colmar Manor · All family medicine physicians in Maryland