Charles W. Karesh, M.D.
NPI 1497881619ActiveIndividual· Internal Medicine· Germantown, MD
Internal Medicine (M.D.) in Germantown, Maryland, licensed in MD, with an NPI issued in February 2007. Their prescriptions cost Medicare Part D more than their services did: $248,834 for 3,620 claims, against $54,378 paid for services in 2024. Acadia Pharmaceuticals Inc reported $122.56 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1497881619 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Feb 23, 2007 |
| Last updated in NPPES | Oct 22, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | D0021726 | 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 | 264 |
|---|---|
| Services billed | 724 across 26 procedure codes |
| Paid by Medicare | $54,378 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,620 · 5,135 30-day fills |
|---|---|
| Patients | 210 |
| Total drug cost | $248,834 |
| Generic share | 89% of claims |
Industry payments (Open Payments)
- 2025$122.56 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Acadia Pharmaceuticals Inc | $122.56 | 2 |
What the 2025 payments were for
- Food and Beverage$122.56 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 36 internal medicine physicians in Germantown · All internal medicine physicians in Maryland