Mary Green Knox, M.D.
NPI 1043273550ActiveIndividual· Family Medicine· Charlotte, NC
Family Medicine (M.D.) with Avance Care PA, practicing in Charlotte, North Carolina. Their prescriptions cost Medicare Part D more than their services did: $105,261 for 1,687 claims, against $50,517 paid for services in 2024. Abbvie Inc. was the largest of 11 companies reporting payments in 2025, $1,065 in all, mostly food and beverage. Lists Novant Health Matthews Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1043273550 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 7, 2006 |
| Last updated in NPPES | Mar 7, 2022 |
| Certified by provider | Mar 7, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 2000-01589 | NC |
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 (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 136 |
|---|---|
| Services billed | 853 across 37 procedure codes |
| Paid by Medicare | $50,517 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,687 · 3,877 30-day fills |
|---|---|
| Patients | 181 |
| Total drug cost | $105,261 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Avance Care PAChapel Hill, NC · 239 clinicians
Hospital affiliations
- Novant Health Matthews Medical CenterMatthews, NC
- Novant Health Presbyterian Medical CenterCharlotte, NC
Industry payments (Open Payments)
- 2025$1,065 · 56 payments from 11 companies
- 2024$1,000 · 54 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $272.45 | 11 |
| Astrazeneca Pharmaceuticals LP | $162.56 | 13 |
| Pfizer Inc. | $159.55 | 9 |
| Novo Nordisk Inc | $112.52 | 6 |
| Lilly USA, LLC | $91.44 | 5 |
What the 2025 payments were for
- Food and Beverage$1,065 · 56 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 599 family medicine physicians in Charlotte · All family medicine physicians in North Carolina