David Leng, MD
NPI 1003074428ActiveIndividual· Family Medicine· Ashburn, VA
Family Medicine (MD) in Ashburn, Virginia, trained at University of California, Davis School of Medicine (class of 2008). Part D covered 3,170 prescriptions written in 2024, 86% of them generic. Tg Therapeutics, Inc. reported $27.74 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1003074428 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 2, 2008 |
| Last updated in NPPES | Jun 7, 2021 |
| Certified by provider | Jun 7, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 0101252174 | VA |
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) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 3,170 · 7,881 30-day fills |
|---|---|
| Patients | 281 |
| Total drug cost | $153,429 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | University of California, Davis School of Medicine |
|---|---|
| Graduation year | 2008 |
| Medicare specialty | Family Practice |
Medical group
- Kaiser Foundation Health Plan of the Mid Atlantic States, IncLargo, MD · 1,899 clinicians
Industry payments (Open Payments)
- 2025$27.74 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Tg Therapeutics, Inc. | $27.74 | 1 |
What the 2025 payments were for
- Food and Beverage$27.74 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 42 family medicine physicians in Ashburn · All family medicine physicians in Virginia