Mazen Khusayem, MD
NPI 1285604934ActiveIndividual· Internal Medicine· Clayton, NC
Internal Medicine (MD) with Legacy Healthcare Services Inc, practicing in Clayton, North Carolina. Their prescriptions cost Medicare Part D more than their services did: $1,487,483 for 16,275 claims, against $168,495 paid for services in 2024. Novo Nordisk Inc was the largest of 28 companies reporting payments in 2025, $2,366 in all, mostly food and beverage. Lists Johnston Health as a hospital affiliation.
Overview
| NPI | 1285604934 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 25, 2006 |
| Last updated in NPPES | Aug 6, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 9900898 | 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 - Internal Medicine (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 365 |
|---|---|
| Services billed | 3,404 across 41 procedure codes |
| Paid by Medicare | $168,495 |
Part D prescriptions in 2024
| Prescriptions (claims) | 16,275 · 33,448 30-day fills |
|---|---|
| Patients | 842 |
| Total drug cost | $1,487,483 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 1987 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Legacy Healthcare Services IncGreenville, SC · 3,223 clinicians
Hospital affiliation
- Johnston HealthSmithfield, NC
Other facilities
- Medi Home Health AgencyHome health agency · Raleigh, NC
- Well Care Home Health of the Southern Triangle, Inc.Home health agency · Holly Springs, NC
Industry payments (Open Payments)
- 2025$2,366 · 102 payments from 28 companies
- 2024$2,189 · 99 payments from 34 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $530.69 | 14 |
| Astrazeneca Pharmaceuticals LP | $340.97 | 15 |
| Amgen Inc. | $291.81 | 14 |
| Viatris Specialty LLC | $167.92 | 8 |
| Lilly USA, LLC | $157.67 | 14 |
What the 2025 payments were for
- Food and Beverage$2,366 · 102 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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