Quick answers
- Does Garbis Kassabian accept Medicare assignment?
- Yes. Medicare's clinician data says Garbis Kassabian accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Garbis Kassabian see?
- In 2024, CMS data shows 295 Original Medicare patients and 1,365 services for Garbis Kassabian. This counts Original Medicare only and measures volume, not quality.
- What is Garbis Kassabian's NPI number?
- 1083692669. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Garbis Kassabian, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 295 |
|---|---|
| Services billed to Medicare | 1,365 |
| Different services or procedures | 18 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)464 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)87 services
- Test to measure expiratory airflow and volume changes before and after medication administration (94060)71 services
- Test to determine lung volumes using gas dilution or washout (94727)71 services
- Test to examine how well the lungs exchange gases (94729)71 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis71%
- Diabetes57%
- Ischemic heart disease52%
- COPD48%
Practice locations
Addresses where Garbis Kassabian is enrolled with Medicare (CMS data updated October 2, 2026).
- 14901 Rinaldi St, Suite 305Mission Hills, CA 91345 (818) 837‑6830
Specialties
Other pulmonologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Wisconsin |
| Graduation year | 1993 (33 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1083692669 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians