Arsen Osipov, M.D.
NPI 1598108482ActiveIndividual· Internal Medicine, Medical Oncology· West Hollywood, CA
Internal Medicine, Medical Oncology (M.D.) with Cedars-Sinai Medical Center, practicing in West Hollywood, California. Their prescriptions cost Medicare Part D more than their services did: $708,136 for 595 claims, against $115,035 paid for services in 2024. Novocure Inc. was the largest of 2 companies reporting payments in 2025, $9,188 in all, mostly consulting fees. Lists Cedars-Sinai Medical Center as a hospital affiliation.
Overview
| NPI | 1598108482 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 10, 2013 |
| Last updated in NPPES | Jul 21, 2022 |
| Certified by provider | Jul 8, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | A135404 | CA |
| Internal Medicine | 207R00000X | A135404 | 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 - Medical Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 167 |
|---|---|
| Services billed | 1,065 across 16 procedure codes |
| Paid by Medicare | $115,035 |
Part D prescriptions in 2024
| Prescriptions (claims) | 595 · 664 30-day fills |
|---|---|
| Patients | 98 |
| Total drug cost | $708,136 |
| Generic share | 64% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Medical Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Cedars-Sinai Medical CenterWest Hollywood, CA · 799 clinicians
Hospital affiliation
- Cedars-Sinai Medical CenterLos Angeles, CA
Industry payments (Open Payments)
- 2025$9,188 · 29 payments from 2 companies
- 2024$3,769 · 3 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novocure Inc. | $9,159 | 28 |
| Abbvie Inc. | $28.86 | 1 |
What the 2025 payments were for
- Consulting Fee$6,000 · 3 payments
- Travel and Lodging$2,176 · 11 payments
- Food and Beverage$1,012 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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