Michael S. Karp, M.D.
NPI 1336177229ActiveIndividual· Internal Medicine· Los Angeles, CA
Internal Medicine (M.D.) in Los Angeles, California, trained at University of Southern California Keck School of Medicine (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $796,254 for 5,834 claims, against $82,226 paid for services in 2024. Astrazeneca Pharmaceuticals LP reported $40.89 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1336177229 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 29, 2006 |
| Last updated in NPPES | Nov 27, 2023 |
| Certified by provider | Sep 8, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A75098 | CA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 516 |
|---|---|
| Services billed | 1,135 across 14 procedure codes |
| Paid by Medicare | $82,226 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,834 · 13,130 30-day fills |
|---|---|
| Patients | 506 |
| Total drug cost | $796,254 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | University of Southern California Keck School of Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Usc Care Medical Group IncLos Angeles, CA · 1,380 clinicians
Hospital affiliations
- Keck Hospital of UscLos Angeles, CA
- Los Angeles General Medical CenterLos Angeles, CA
- Usc Verdugo Hills HospitalGlendale, CA
Other facilities
- Americare Home Health, IncHome health agency · Van Nuys, CA
- First American Home Health IncHome health agency · Glendale, CA
Industry payments (Open Payments)
- 2025$40.89 · 2 payments from 1 company
- 2024$87.68 · 5 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $40.89 | 2 |
What the 2025 payments were for
- Food and Beverage$40.89 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 1,782 internal medicine physicians in Los Angeles · All internal medicine physicians in California