Dr. Gregory Vassilev, MD

Dr. Vassilev practices at Valley Presbyterian Hospital in Vannuys, California, part of Valley Presbyterian Hospital.

Dr. Vassilev's NPI, 1073539748, was assigned on July 14, 2006. Dr. Vassilev graduated from David Geffen School of Medicine at UCLA in 1995. Dr. Vassilev holds California license A63560.

Dr. Vassilev's primary practice is Valley Presbyterian Hospital, at 15107 Vanowen St, Vannuys, CA 91405 in Los Angeles County. The practice phone is (818) 782-6600.

Dr. Vassilev's primary practice is Valley Presbyterian Hospital in Vannuys, California, part of Valley Presbyterian Hospital. The medical group on file is UCLA Health. Dmand AI also links Dr. Vassilev to 2 more hospitals, 1 group practice or clinic, 1 ambulatory surgery center and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Vassilev practices, 5 sites in all. Vendor and product names are available with a free account.

Pain medicine is Dr. Vassilev's primary specialty in the NPI Registry, under taxonomy code 207LP2900X. Dr. Vassilev is board certified in anesthesiology by the American Board of Anesthesiology. Dmand AI has Dr. Vassilev's licenses on file in 2 states: California and Colorado.

Dmand AI lists back pain injection, lower back pain, muscle pain, fibromyalgia, and limb pain, neck pain and spine problems, spinal stenosis and thoracic spine disorders among the conditions Dr. Vassilev treats.

CMS data shows 2,281 Medicare services from Dr. Vassilev across 14 procedure codes in 2024, for 416 Medicare patients. Medicare paid $231,307 for them.

CMS counts 416 Medicare patients who saw Dr. Vassilev in 2024. The largest group is 65 to 74, with 200 patients. 75% of them have arthritis, and 75% have high blood pressure. 21% are also on Medicaid. Their average risk score is 1.43, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Vassilev's median patient age at 64, with 55% women.

In 2024, Dr. Vassilev wrote 3,887 Medicare Part D claims for 420 patients. 96% of them were for generic drugs. CMS names the drug for 3,752 of them, across 35 drugs with 11 or more claims each, at $117,638 in total drug cost. In 2023, CMS named 2,822 claims across 40 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 81 out of 100 for Dr. Vassilev for performance year 2024, reported as part of a group. Dr. Vassilev accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Vassilev as offering telehealth.

CMS Open Payments shows 385 general payments to Dr. Vassilev from 37 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Medtronic USA, Inc. paid the most, $4,617.

Dmand AI lists 4 awards for Dr. Vassilev, most recently TOP PAIN MANEGEMENT PHYSICIAN IN CALIFORNIA in 2019. Dr. Vassilev serves on CASSIP -Political Action comitee.

Dr. Vassilev graduated from David Geffen School of Medicine at UCLA in 1995. Dr. Vassilev is a member of APS, ASA and ASIPP.

Dr. Vassilev is in network with 13 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.