Pierre Mawesa Diomi Jr., MD
NPI 1619521051ActiveIndividual· Family Medicine· Manassas, VA
Family Medicine (MD) with Valley Patient Care Inc, practicing in Manassas, Virginia. Their prescriptions cost Medicare Part D more than their services did: $49,009 for 753 claims, against $24,826 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 5 companies reporting payments in 2025, $354.37 in all, mostly food and beverage.
Overview
| NPI | 1619521051 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jul 24, 2019 |
| Last updated in NPPES | Mar 8, 2022 |
| Certified by provider | Feb 22, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 0101268945 | VA |
| General Practice | 208D00000X | 0101268945 | VA |
| General Practice | 208D00000X | 21490 | PR |
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 (DC); Practitioner - Family Practice (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 106 |
|---|---|
| Services billed | 601 across 58 procedure codes |
| Paid by Medicare | $24,826 |
Part D prescriptions in 2024
| Prescriptions (claims) | 753 · 1,385 30-day fills |
|---|---|
| Patients | 158 |
| Total drug cost | $49,009 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Valley Patient Care IncManassas, VA · 2 clinicians
Industry payments (Open Payments)
- 2025$354.37 · 9 payments from 5 companies
- 2024$193.20 · 9 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $272.81 | 5 |
| Lilly USA, LLC | $25.52 | 1 |
| Amgen Inc. | $22.71 | 1 |
| Kowa Pharmaceuticals America, Inc. | $17.05 | 1 |
| Kyowa Kirin, Inc. | $16.28 | 1 |
What the 2025 payments were for
- Food and Beverage$354.37 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 72 family medicine physicians in Manassas · All family medicine physicians in Virginia