Mark D. Harris, M.D.
NPI 1437157872ActiveIndividual· Internal Medicine, Rheumatology· Wilmington, NC
Internal Medicine, Rheumatology (M.D.) in Wilmington, North Carolina, trained at Tufts University School of Medicine (class of 1992). 695 Medicare patients in 2024, $3,350,781 paid; nearly all of their 2,254 Part D prescriptions were generic (93%). E.R. Squibb & Sons, L.L.C. was the largest of 9 companies reporting payments in 2025, $235.08 in all, mostly food and beverage.
Overview
| NPI | 1437157872 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 11, 2005 |
| Last updated in NPPES | Jul 9, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | 200100549 | NC |
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 - Rheumatology (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 695 |
|---|---|
| Services billed | 296,175 across 103 procedure codes |
| Paid by Medicare | $3,350,781 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,254 · 4,231 30-day fills |
|---|---|
| Patients | 359 |
| Total drug cost | $1,378,764 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Rheumatology |
| Telehealth | Offers telehealth |
Medical group
- Carolina Arthritis Associates PAWilmington, NC · 5 clinicians
Hospital affiliation
- Novant Health New Hanover Regional Medical CenterWilmington, NC
Industry payments (Open Payments)
- 2025$235.08 · 11 payments from 9 companies
- 2024$268.13 · 9 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $59.24 | 3 |
| Abbvie Inc. | $28.25 | 1 |
| Radius Health, Inc. | $25.85 | 1 |
| Organon LLC | $22.80 | 1 |
| Actelion Pharmaceuticals US, Inc. | $22.11 | 1 |
What the 2025 payments were for
- Food and Beverage$235.08 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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