Dr. John Marshall Robertson, MD

Dr. Robertson practices at Providence Saint Johns Medical Foundation in Santa Monica, California.

Dr. Robertson's NPI, 1689760480, was assigned on October 5, 2006. Dr. Robertson graduated from Saint Louis University School Of Medicine in 1977. Dr. Robertson holds California license G38174.

Dr. Robertson's primary practice is Providence Saint Johns Medical Foundation, at 2121 Santa Monica Blvd, Santa Monica, CA 90404 in Los Angeles County. The practice phone is (310) 829-5511.

Dr. Robertson's primary practice is Providence Saint Johns Medical Foundation in Santa Monica, California. The medical group on file is Saint John's Physician Partners.

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

Thoracic surgery (cardiothoracic vascular surgery) is Dr. Robertson's primary specialty in the NPI Registry, under taxonomy code 208G00000X. Dr. Robertson is board certified in thoracic and cardiac surgery by the American Board of Thoracic Surgery. Dmand AI has Dr. Robertson's licenses on file in 2 states: California and Virginia.

Dmand AI lists heart valve surgery among the conditions Dr. Robertson treats.

CMS data shows 48 Medicare services from Dr. Robertson across 2 procedure codes in 2024, for 40 Medicare patients. Medicare paid $19,163 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 40 Medicare patients who saw Dr. Robertson in 2024. The largest group is 75 to 84, with 17 patients. 75% of them have heart failure, and 75% have high blood pressure. Their average risk score is 2.33, 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. Robertson's median patient age at 59, with 100% women.

In 2018, Dr. Robertson wrote 28 Medicare Part D claims. Every claim was for a generic drug. They cover 2 drugs, with $186 in total drug cost. In 2017, CMS named 37 claims across 3 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 90 out of 100 for Dr. Robertson for performance year 2024, reported as part of a group. Dr. Robertson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

CMS Open Payments shows 78 general payments to Dr. Robertson from 28 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Edwards Lifesciences Corporation paid the most, $381.

Dmand AI lists 4 awards for Dr. Robertson. Dr. Robertson serves on Health Information Committee, Environment of Care Committee and Credential Committee.

Dr. Robertson graduated from Saint Louis University School Of Medicine in 1977. Dr. Robertson is a member of AATS, ACCP, ACS, Bay Surgical Society, Pacific Coast Surgical Association and STS.

Dr. Robertson is in network with 14 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.