Ian Thomas Greenwalt, M.D.
NPI 1720405665ActiveIndividual· Surgery· Haymarket, VA
Surgery (M.D.) in Haymarket, Virginia, trained at Drexel University College of Medicine (class of 2014). Mostly services rather than prescriptions: Medicare paid $59,112 for 184 patients in 2024, with only 27 Part D claims. Hologic Sales and Service, LLC reported $145.56 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1720405665 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 27, 2014 |
| Last updated in NPPES | Dec 6, 2024 |
| Certified by provider | Dec 6, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 0101283801 | VA |
| Surgery, Surgical Oncology | 2086X0206X | MD047318 | DC |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Surgical Oncology (DC); Practitioner - General Surgery (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 184 |
|---|---|
| Services billed | 328 across 18 procedure codes |
| Paid by Medicare | $59,112 |
Part D prescriptions in 2024
| Prescriptions (claims) | 27 · 27 30-day fills |
|---|---|
| Patients | 18 |
| Total drug cost | $149.29 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | Drexel University College of Medicine |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | General Surgery |
Medical group
- Uva Community Health Medical Group LLCBristow, VA · 340 clinicians
Hospital affiliations
- Fauquier HospitalWarrenton, VA
- Medstar Georgetown University HospitalWashington, DC
- Uva Health Haymarket Medical CenterHaymarket, VA
- Uva Health Prince William Medical CenterManassas, VA
Industry payments (Open Payments)
- 2025$145.56 · 1 payment from 1 company
- 2024$4,827 · 23 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Hologic Sales and Service, LLC | $145.56 | 1 |
What the 2025 payments were for
- Food and Beverage$145.56 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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