Dr. Mark R R. Kobayashi, MD

Dr. Kobayashi practices at UCI Health - Orange in Orange, California, part of UC Irvine.

Dr. Kobayashi's NPI, 1518047729, was assigned on October 16, 2006. Dr. Kobayashi graduated from Tulane School of Medicine in 1984. Dr. Kobayashi holds California license 000000A43597.

Dr. Kobayashi's primary practice is UCI Health - Orange, at 101 City Drive South, Orange, CA 92868 in Orange County. The practice phone is (714) 456-7890.

Dr. Kobayashi's primary practice is UCI Health - Orange in Orange, California, part of UC Irvine.

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

Plastic surgery is Dr. Kobayashi's primary specialty in the NPI Registry, under taxonomy code 208200000X. Dr. Kobayashi is board certified in plastic surgery by the American Board of Plastic Surgery. Dmand AI has Dr. Kobayashi's licenses on file in 2 states: California and Louisiana.

Dmand AI lists breast reconstruction, breast surgery and chronic skin ulcer among the conditions Dr. Kobayashi treats.

CMS data shows 64 Medicare services from Dr. Kobayashi across 2 procedure codes in 2024, all of them office visits, for 46 Medicare patients. Medicare paid $2,809 for them. Every service was in an office.

CMS counts 46 Medicare patients who saw Dr. Kobayashi in 2024. The largest group is 65 to 74, with 23 patients. 75% of them have cancer, and 72% have high cholesterol. Their average risk score is 1.58, 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. Kobayashi's median patient age at 57, with 86% women.

In 2022, Dr. Kobayashi wrote 12 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $92 in total drug cost. In 2021, CMS named 58 claims across 3 drugs.

Dr. Kobayashi accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 25 procedures of mastectomy by Dr. Kobayashi, more than 83% of the clinicians it reports for that procedure.

Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)

Dmand AI links 7 papers to Dr. Kobayashi, published from 2020 to 2021. The most frequent topics are Surgical Flaps. Dr. Kobayashi has published most often in Ann Plast Surg. Dr. Kobayashi's most frequent co-authors are Gregory R D Evans, MD, Jay Calvert, MD and Brandyn Dunn, MD, MPH.

CMS Open Payments shows 31 general payments to Dr. Kobayashi from 10 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 70% of the total. Mentor Worldwide LLC paid the most, $513.

Dr. Kobayashi graduated from Tulane School of Medicine in 1984.

Dr. Kobayashi is in network with 13 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.