Dr. Gregory H. Tchejeyan, MD - Doctor in Thousand Oaks, CA

Dr. Gregory H. Tchejeyan, MD

Doctor
4.9

88 reviews

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About This Business

Dr. Gregory H. Tchejeyan, MD, is a specialist in Thousand Oaks, California, with 32 years of experience since graduating from the University of Southern California Keck School of Medicine in 1994, above the 28-year average among the 101 Thousand Oaks physicians in our directory. He is one of four specialists among our Thousand Oaks listings. His Medicare profile lists knee replacement, upper limb arthroscopy, and hip replacement as his most frequent procedures. He is affiliated with Los Robles Hospital & Medical Center. In MIPS, the federal program scoring Medicare clinicians on quality and cost, he holds 98.8 out of 100, the highest MIPS score among the 16 rated physicians in our Thousand Oaks listings. He accepts Medicare; telehealth is not currently listed among his services. Patients rate him 4.9 across 88 reviews.

Verified Provider Info

Specialty (per registry)
Specialist
NPI Number
1689668188
Medical school graduate
1994 (32+ years of practice)
Medical school
UNIVERSITY OF SOUTHERN CALIFORNIA KECK SCHOOL OF MEDICINE
State license
A55364 (CA)
Hospital affiliations
Los Robles Hospital & Medical Center
Quality score (CMS MIPS)
98.8/100
Common services (Medicare data)
Knee replacement · Upper limb (arm) arthroscopy (minimally invasive joint repair) · Hip replacement
Accepts Medicare

Source: NPPES NPI Registry (CMS) · CMS Doctors & Clinicians dataset · checked 2026-08-18

Address

250 Lombard St STE 1
Thousand Oaks, CA 91360

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Information last updated: August 23, 2026