Tonja Lourene Gadsden, MD
NPI 1689783102ActiveIndividual· Internal Medicine· Washington, DC
Internal Medicine (MD) in Washington, District of Columbia, trained at Howard University College of Medicine (class of 1989). 205 Medicare patients in 2024, $59,816 paid; nearly all of their 1,174 Part D prescriptions were generic (92%). Corcept Therapeutics was the largest of 24 companies reporting payments in 2025, $897.82 in all, mostly food and beverage.
Overview
| NPI | 1689783102 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 29, 2006 |
| Last updated in NPPES | Apr 2, 2025 |
| Certified by provider | Apr 2, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | MD20448 | DC |
| Internal Medicine | 207R00000X | D0043699 | MD |
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 (DC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 205 |
|---|---|
| Services billed | 701 across 21 procedure codes |
| Paid by Medicare | $59,816 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,174 · 2,794 30-day fills |
|---|---|
| Patients | 133 |
| Total drug cost | $51,083 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Howard University College of Medicine |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Internal Medicine |
Medical group
- Howard UniversityWashington, DC · 181 clinicians
Hospital affiliation
- Howard University Hospital CorpWashington, DC
Industry payments (Open Payments)
- 2025$897.82 · 37 payments from 24 companies
- 2024$844.10 · 29 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Corcept Therapeutics | $200.50 | 7 |
| Astrazeneca Pharmaceuticals LP | $74.70 | 3 |
| Insulet Corporation | $64.64 | 3 |
| Sanofi-Aventis U.S. LLC | $55.86 | 2 |
| Verona Pharma, Inc. | $41.76 | 2 |
What the 2025 payments were for
- Food and Beverage$897.82 · 37 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 1,030 internal medicine physicians in Washington · All internal medicine physicians in District of Columbia