Zachary A. Gregg, M.D.
NPI 1285836312ActiveIndividual· Colon & Rectal Surgery· Charlottesville, VA
Colon & Rectal Surgery (M.D.) in Charlottesville, Virginia, trained at Rutgers New Jersey Medical School (class of 2007). 220 Medicare patients in 2024, $86,987 paid; nearly all of their 161 Part D prescriptions were generic (99%).
Overview
| NPI | 1285836312 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 1, 2007 |
| Last updated in NPPES | Jul 3, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Colon & Rectal Surgery Primary | 208C00000X | 0101258691 | VA |
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 - Colorectal Surgery (Proctology) (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 220 |
|---|---|
| Services billed | 520 across 60 procedure codes |
| Paid by Medicare | $86,987 |
Part D prescriptions in 2024
| Prescriptions (claims) | 161 · 161 30-day fills |
|---|---|
| Patients | 70 |
| Total drug cost | $1,118 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | Rutgers New Jersey Medical School |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Colorectal Surgery (Proctology) |
| Telehealth | Offers telehealth |
Medical group
- Martha Jefferson Medical Group LLCZion Crossroads, VA · 195 clinicians
Hospital affiliations
- Sentara Martha Jefferson HospitalCharlottesville, VA
- Sentara Rmh Medical CenterHarrisonburg, VA
- University of Virginia Medical CenterCharlottesville, VA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records