Gregory Vassilev, MD
NPI 1073539748ActiveIndividual· Anesthesiology, Pain Medicine· Van Nuys, CA
Anesthesiology, Pain Medicine (MD) in Van Nuys, California, trained at University of California, Geffen School of Medicine (class of 1995). 416 Medicare patients in 2024, $244,177 paid; nearly all of their 3,887 Part D prescriptions were generic (96%). Medtronic, Inc. was the largest of 8 companies reporting payments in 2025, $1,010 in all, mostly food and beverage.
Overview
| NPI | 1073539748 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jul 14, 2006 |
| Last updated in NPPES | Jun 6, 2022 |
| Certified by provider | Jun 6, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology, Pain Medicine Primary | 207LP2900X | A63560 | CA |
| Anesthesiology | 207L00000X | A63560 | 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 - Pain Management (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 416 |
|---|---|
| Services billed | 2,375 across 35 procedure codes |
| Paid by Medicare | $244,177 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,887 · 4,096 30-day fills |
|---|---|
| Patients | 420 |
| Total drug cost | $129,853 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | University of California, Geffen School of Medicine |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Pain Management |
| Secondary specialties | Anesthesiology |
| Telehealth | Offers telehealth |
Medical group
- Regents of the University of CaliforniaLos Angeles, CA · 140 clinicians
Industry payments (Open Payments)
- 2025$1,010 · 38 payments from 8 companies
- 2024$1,426 · 51 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $587.85 | 19 |
| Amgen Inc. | $204.70 | 9 |
| Collegium Pharmaceutical, Inc. | $73.65 | 4 |
| Nalu Medical, Inc. | $36.52 | 1 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $35.80 | 2 |
What the 2025 payments were for
- Food and Beverage$1,010 · 38 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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