Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Greg G Kojayan, MD

Individual provider Anesthesiology Physician · NPI 1689200594

Greg G Kojayan, MD practises Anesthesiology in West Hollywood, California. Qualified in 2020, 6 years ago. Practices with Glendale Adventist Medical Center, a 99-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
6
Licensed in
CA
In the registry since
2020
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

8700 Beverly Blvd
West Hollywood, CA 90048-1804
Phone: (310) 423-5841
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 757 Westwood Plz, Los Angeles, CA 90095-8358 — (310) 825-9111

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence A190679 (CA)

Record details

NPI number1689200594
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 23, 2020
Last updated in NPPESAugust 18, 2025
Certification dateAugust 18, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 2020 (6 years in practice)
Group practice Glendale Adventist Medical Center — 99 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients81
Services billed 92 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Glendale Adventist Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 99 clinicians in the practice; 12 are shown here.

Other providers in West Hollywood