Garbis Kassabian, M.D.
NPI 1083692669ActiveIndividual· Specialist· Mission Hills, CA
Specialist (M.D.) in Mission Hills, California, trained at Medical College of Wisconsin (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $1,766,915 for 2,876 claims, against $143,460 paid for services in 2024. Insmed, Inc. was the largest of 15 companies reporting payments in 2025, $1,112 in all, mostly food and beverage.
Overview
| NPI | 1083692669 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 4, 2006 |
| Last updated in NPPES | Jan 3, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | G79982 | 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 - Pulmonary Disease (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 295 |
|---|---|
| Services billed | 1,365 across 18 procedure codes |
| Paid by Medicare | $143,460 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,876 · 3,806 30-day fills |
|---|---|
| Patients | 448 |
| Total drug cost | $1,766,915 |
Education and affiliations
| Medical school | Medical College of Wisconsin |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists), Internal Medicine |
Industry payments (Open Payments)
- 2025$1,112 · 58 payments from 15 companies
- 2024$1,202 · 60 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Insmed, Inc. | $270.65 | 14 |
| Glaxosmithkline, LLC. | $248.81 | 15 |
| Astrazeneca Pharmaceuticals LP | $192.94 | 11 |
| Grifols USA, LLC | $87.73 | 3 |
| Viatris Specialty LLC | $82.26 | 4 |
What the 2025 payments were for
- Food and Beverage$1,095 · 57 payments
- Education$17.38 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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