Gregory Michael Knoll, MD
NPI 1477849446ActiveIndividual· Orthopaedic Surgery· Cary, NC
Orthopaedic Surgery (MD) in Cary, North Carolina, trained at Wake Forest University School of Medicine (class of 2011). Mostly services rather than prescriptions: Medicare paid $74,814 for 131 patients in 2024, with only 14 Part D claims. Baxter Healthcare was the largest of 2 companies reporting payments in 2025, $44.24 in all, mostly food and beverage.
Overview
| NPI | 1477849446 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 28, 2011 |
| Last updated in NPPES | Oct 13, 2022 |
| Certified by provider | Oct 13, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | 2022-02702 | NC |
| Surgery, Plastic and Reconstructive Surgery | 2086S0122X | 4301098475 | MI |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | FL |
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 - Orthopedic Surgery (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 131 |
|---|---|
| Services billed | 892 across 63 procedure codes |
| Paid by Medicare | $74,814 |
Part D prescriptions in 2024
| Prescriptions (claims) | 14 · 14 30-day fills |
|---|---|
| Total drug cost | $1,784 |
| Generic share | 79% of claims |
Education and affiliations
| Medical school | Wake Forest University School of Medicine |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- University of North Carolina at Chapel HillChapel Hill, NC · 2,052 clinicians
Hospital affiliations
- Chatham Hospital IncSiler City, NC
- Unc HospitalsChapel Hill, NC
Industry payments (Open Payments)
- 2025$44.24 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Baxter Healthcare | $28.14 | 1 |
| Depuy Synthes Sales Inc. | $16.10 | 1 |
What the 2025 payments were for
- Food and Beverage$44.24 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 31 orthopedic surgeons in Cary · All orthopedic surgeons in North Carolina