Dr. Corey M. Warner, MD

Dr. Warner practices at San Francisco VA Medical Center in San Francisco, California, part of Veterans Health Administration.

Dr. Warner's NPI, 1801998968, was assigned on September 1, 2006. Dr. Warner graduated from Oregon Health and Science University School of Medicine in 1997. Dr. Warner's California license number on file is C53422.

Dr. Warner's primary practice is San Francisco VA Medical Center, at 4150 Clement Street, San Francisco, CA 94121 in San Francisco County. The practice phone is (415) 221-4810.

Dr. Warner's primary practice is San Francisco VA Medical Center in San Francisco, California, part of Veterans Health Administration. The medical group on file is Adventist Health Clear Lake. Dmand AI also links Dr. Warner to 1 more group practice or clinic, named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Warner practices, 2 sites in all. Vendor and product names are available with a free account.

Internal medicine is Dr. Warner's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Warner is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Warner's licenses on file in 3 states: California, Oregon and Illinois.

Dmand AI lists acid reflux, acute gallbladder or bile duct inflammation, acute gastroduodenitis, acute mini-stroke (TIA), acute skin infection, adjustment disease, alcohol use disorders and aneurysm among the conditions Dr. Warner treats.

CMS data shows 43 Medicare services from Dr. Warner across 1 procedure code in 2021, all of them office visits. Medicare paid $3,906 for them. Every service was in an office.

Across all payers, Dmand AI patient panel data puts Dr. Warner's median patient age at 73, with 57% women.

In 2024, Dr. Warner wrote 12,334 Medicare Part D claims for 1,030 patients. 87% of them were for generic drugs. CMS names the drug for 11,682 of them, across 173 drugs with 11 or more claims each, at $1,152,203 in total drug cost. In 2023, CMS named 12,381 claims across 176 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 96 out of 100 for Dr. Warner for performance year 2024, reported through an alternative payment model (APM). Dr. Warner accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Dmand AI links 2 papers to Dr. Warner. The most frequent topics are Blotting, Northern, Blotting, Western and Gene Expression.

CMS Open Payments shows 779 general payments to Dr. Warner from 41 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Janssen Pharmaceuticals, Inc paid the most, $2,086.

Dr. Warner graduated from Oregon Health and Science University School of Medicine in 1997.

Dr. Warner is in network with 11 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.