Dr. Gregory H. Tchejeyan, MD
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
Source: NPPES NPI Registry (CMS) · CMS Doctors & Clinicians dataset · checked 2026-08-18
Phone
(805) 495-3687Location on Map
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Information last updated: August 23, 2026
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