Dr. Brian J. Keyashian, MD

Dr. Keyashian practices at Bay Area Surgical Specialist Services in Walnut Creek, California.

Dr. Keyashian's NPI, 1962776245, was assigned on March 3, 2012. Dr. Keyashian holds California license A147947.

Dr. Keyashian's primary practice is Bay Area Surgical Specialist Services, at 460 N Wiget Ln, Walnut Creek, CA 94598 in Contra Costa County. The practice phone is (202) 815-3665.

Dr. Keyashian's primary practice is Bay Area Surgical Specialist Services in Walnut Creek, California. Dr. Keyashian is also affiliated with John Muir Medical Center, Walnut Creek. The medical group on file is BASS Medical Group. Dmand AI also links Dr. Keyashian to 4 more hospitals, 3 group practices and clinics and 2 medical groups, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Keyashian practices, 8 sites in all. Vendor and product names are available with a free account.

Vascular surgery is Dr. Keyashian's primary specialty in the NPI Registry, under taxonomy code 2086S0129X. Dmand AI has Dr. Keyashian's licenses on file in 2 states: California and Illinois.

CMS data shows 2,675 Medicare services from Dr. Keyashian across 27 procedure codes in 2024, for 555 Medicare patients. Medicare paid $432,986 for them.

CMS counts 555 Medicare patients who saw Dr. Keyashian in 2024. The largest group is 75 to 84, with 209 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 45% are also on Medicaid. Their average risk score is 3.61, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Keyashian's median patient age at 73, with 46% women.

In 2024, Dr. Keyashian wrote 246 Medicare Part D claims for 81 patients. 82% of them were for generic drugs. CMS names the drug for 195 of them, across 4 drugs with 11 or more claims each, at $53,522 in total drug cost. In 2023, CMS named 209 claims across 5 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Keyashian for performance year 2024, reported individually. Dr. Keyashian accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 78 procedures of leg revascularization (restoring blood flow) by Dr. Keyashian, more than 98% of the clinicians it reports for that procedure.

Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)

Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)

Dmand AI links 3 papers to Dr. Keyashian, published from 2012 to 2016. 2016 was the busiest year, with 2. Dr. Keyashian's most frequent co-authors are Michael J. Malinowski, MD, Daniel Guillermo Davila, MD and Anahita Dua, MD.

CMS Open Payments shows 244 general payments to Dr. Keyashian from 20 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 45% of the total. Medtronic, Inc. paid the most, $13,137.