Michael S. Benjamin, M.D.
NPI 1619933132ActiveIndividual· Internal Medicine, Hematology & Oncology· West Hills, CA
Internal Medicine, Hematology & Oncology (M.D.) in West Hills, California, trained at Tulane University School of Medicine (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $12,314,939 for 1,835 claims, against $2,056,789 paid for services in 2024. Novartis Pharmaceuticals Corporation was the largest of 30 companies reporting payments in 2025, $2,451 in all, mostly food and beverage.
Overview
| NPI | 1619933132 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 24, 2006 |
| Last updated in NPPES | Jan 24, 2023 |
| Certified by provider | Jan 24, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A86460 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology/Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 401 |
|---|---|
| Services billed | 79,034 across 90 procedure codes |
| Paid by Medicare | $2,056,789 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,835 · 2,104 30-day fills |
|---|---|
| Patients | 225 |
| Total drug cost | $12,314,939 |
| Generic share | 16% of claims |
Education and affiliations
| Medical school | Tulane University School of Medicine |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Infectious Disease |
| Telehealth | Offers telehealth |
Hospital affiliations
- Adventist Health Simi ValleySimi Valley, CA
- Los Robles Hospital & Medical CenterThousand Oaks, CA
- Northridge Hospital Medical CenterNorthridge, CA
- UCLA West Valley Medical CenterWest Hills, CA
Industry payments (Open Payments)
- 2025$2,451 · 104 payments from 30 companies
- 2024$2,611 · 102 payments from 28 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $342.71 | 14 |
| Pfizer Inc. | $217.20 | 9 |
| Astrazeneca Pharmaceuticals LP | $194.51 | 10 |
| Genentech USA, Inc. | $177.96 | 7 |
| Janssen Biotech, Inc. | $172.50 | 7 |
What the 2025 payments were for
- Food and Beverage$2,451 · 104 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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