Michelle Ekua Serwaa Tweedie, PA-C
NPI 1518646645ActiveIndividual· Physician Assistant· Gaithersburg, MD
Physician Assistant (PA-C) with Medstar Medical Group II LLC, practicing in Gaithersburg, Maryland. Part D covered 593 prescriptions written in 2024, 92% of them generic. Astrazeneca Pharmaceuticals LP was the largest of 8 companies reporting payments in 2025, $245.88 in all, mostly food and beverage. Lists Medstar Southern Maryland Hospital Center as a hospital affiliation.
Overview
| NPI | 1518646645 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | Yes |
| NPI issued | Jul 17, 2023 |
| Last updated in NPPES | Jul 17, 2023 |
| Certified by provider | Jul 15, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | C0008968 | MD |
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 - Physician Assistant (DC) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 593 · 1,394 30-day fills |
|---|---|
| Patients | 119 |
| Total drug cost | $42,817 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 2023 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Medstar Medical Group II LLCWashington, DC · 3,767 clinicians
Hospital affiliation
- Medstar Southern Maryland Hospital CenterClinton, MD
Industry payments (Open Payments)
- 2025$245.88 · 12 payments from 8 companies
- 2024$554.67 · 23 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $71.36 | 3 |
| Exact Sciences Corporation | $43.11 | 2 |
| Lilly USA, LLC | $42.71 | 2 |
| Astellas Pharma US Inc | $20.63 | 1 |
| Amgen Inc. | $18.47 | 1 |
What the 2025 payments were for
- Food and Beverage$245.88 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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