Kamyar Assil, MD
Opted out of Medicare from October 2026 to October 2028. Pain Medicine, Interventional Pain Medicine (MD) in Westlake Village, California, trained at University of Southern California Keck School of Medicine (class of 1990). 596 Medicare patients in 2024, $251,482 paid; nearly all of their 330 Part D prescriptions were generic (99%). Spr Therapeutics, Inc was the largest of 4 companies reporting payments in 2025, $186.92 in all, mostly food and beverage.
Overview
| NPI | 1750321568 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jun 8, 2006 |
| Last updated in NPPES | Aug 24, 2026 |
| Certified by provider | Aug 24, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pain Medicine, Interventional Pain Medicine Primary | 208VP0014X | G81184 | CA |
| Pain Medicine, Pain Medicine | 208VP0000X | G81184 | 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Opt-out | Opted out Oct 1, 2026 – Oct 1, 2028 |
| Can order and refer | Yes |
| Accepts assignment | Yes (participating) |
During an opt-out period the provider sees Medicare patients only under private contracts, and Medicare does not pay claims for their services.
Medicare services in 2024
| Medicare patients | 596 |
|---|---|
| Services billed | 2,584 across 69 procedure codes |
| Paid by Medicare | $251,482 |
Part D prescriptions in 2024
| Prescriptions (claims) | 330 · 402 30-day fills |
|---|---|
| Patients | 123 |
| Total drug cost | $6,711 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | University of Southern California Keck School of Medicine |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Pain Management |
| Secondary specialties | Anesthesiology |
Industry payments (Open Payments)
- 2025$186.92 · 7 payments from 4 companies
- 2024$1,500 · 35 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Spr Therapeutics, Inc | $71.59 | 2 |
| Medtronic, Inc. | $55.82 | 2 |
| Pacira Pharmaceuticals Incorporated | $37.97 | 2 |
| Bioventus LLC | $21.54 | 1 |
What the 2025 payments were for
- Food and Beverage$186.92 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records