Mark Boyajian, MD
NPI 1841619244ActiveIndividual· Anesthesiology· Encino, CA
Anesthesiology (MD) with West Hills Anesthesia and Perioperative Physicians, practicing in Encino, California. Medicare paid $54,501 for services to 295 patients in 2024. Janssen Biotech, Inc. reported $22.39 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1841619244 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 14, 2014 |
| Last updated in NPPES | Jun 15, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | A117511 | 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 - Anesthesiology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 295 |
|---|---|
| Services billed | 385 across 51 procedure codes |
| Paid by Medicare | $54,501 |
Education and affiliations
| Graduation year | 2008 |
|---|---|
| Medicare specialty | Anesthesiology |
Medical group
- West Hills Anesthesia and Perioperative PhysiciansWest Hills, CA · 20 clinicians
Industry payments (Open Payments)
- 2025$22.39 · 1 payment from 1 company
- 2024$582.27 · 10 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $22.39 | 1 |
What the 2025 payments were for
- Food and Beverage$22.39 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 79 anesthesiologists in Encino · All anesthesiologists in California