Dr. Robert Tristian Isom, MD

Dr. Isom practices at Central Coast Nephrology Medical Corporation in Salinas, California.

Dr. Isom's NPI, 1356428072, was assigned on November 1, 2006. Dr. Isom graduated from Vagelos College of Physicians and Surgeons in 1997. Dr. Isom's Maine license number on file is MD25822.

Dr. Isom's primary practice is Central Coast Nephrology Medical Corporation, at 917 Blanco Cir, Salinas, CA 93901 in Monterey County. The practice phone is (831) 755-7999.

Dr. Isom's primary practice is Central Coast Nephrology Medical Corporation in Salinas, California. Dr. Isom is also affiliated with Salinas Valley Health Medical Center. The medical group on file is Central Coast Nephrology. Dmand AI also links Dr. Isom to 3 more hospitals and 1 group practice or clinic, each named with a free account.

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

Nephrology is Dr. Isom's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Isom is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Isom's licenses on file in 4 states: Maine, California, New York and Massachusetts.

Dmand AI lists acute kidney failure, chronic kidney disease, fluid and electrolyte imbalances and kidney disease among the conditions Dr. Isom treats.

CMS data shows 3,887 Medicare services from Dr. Isom across 18 procedure codes in 2024, for 402 Medicare patients. Medicare paid $125,973 for them.

CMS counts 402 Medicare patients who saw Dr. Isom in 2024. The largest group is 75 to 84, with 162 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 46% are also on Medicaid. Their average risk score is 2.54, 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. Isom's median patient age at 70, with 49% women.

In 2024, Dr. Isom wrote 1,509 Medicare Part D claims for 233 patients. 80% of them were for generic drugs. CMS names the drug for 1,267 of them, across 33 drugs with 11 or more claims each, at $215,448 in total drug cost. In 2023, CMS named 128 claims across 6 drugs.

Dr. Isom accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Dmand AI links 5 papers to Dr. Isom, published from 2019 to 2022. Dr. Isom has published most often in Kidney Med. Dr. Isom's most frequent co-authors are Vivek Bhalla, MD, Vivek Bhalla, MD and John Patrick Higgins, MD.

CMS Open Payments shows 91 general payments to Dr. Isom from 18 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $420.

Dmand AI lists 1 award for Dr. Isom, most recently CMS Stage 1 EHR in 2013.

Dr. Isom graduated from Vagelos College of Physicians and Surgeons in 1997.

Dr. Isom is in network with 6 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.