Dr. Ajay Maker, MD

Dr. Maker practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health.

Dr. Maker's NPI, 1437237740, was assigned on November 2, 2006. Dr. Maker graduated from Yale School of Medicine in 2001. Dr. Maker's Illinois license number on file is 036126480.

Dr. Maker's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights, at 505 Parnassus Ave, Box 0296, San Francisco, CA 94143 in San Francisco County. The practice phone is (415) 353-2733.

Dr. Maker's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health. The medical group on file is UCSF Pediatrics. Dmand AI also links Dr. Maker to 2 more medical groups, each named with a free account.

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

Surgery is Dr. Maker's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Maker is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Maker's licenses on file in 5 states: Illinois, Massachusetts, California, New York and District of Columbia.

Dmand AI lists cancerous skin growth removal and esophagus, stomach, or upper small intestine surgery among the conditions Dr. Maker treats.

CMS data shows 102 Medicare services from Dr. Maker across 6 procedure codes in 2024, for 54 Medicare patients. Medicare paid $10,153 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 54 Medicare patients who saw Dr. Maker in 2026. The largest group is 75 to 84, with 26 patients. 75% of them have high blood pressure, and 67% have high cholesterol. 24% are also on Medicaid. Their average risk score is 2.03, 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. Maker's median patient age at 70, with 42% women.

In 2026, Dr. Maker wrote 62 Medicare Part D claims for 21 patients. 90% of them were for generic drugs. CMS names the drug for 13 of them, across 1 drug with 11 or more claims each, at $3,787 in total drug cost. In 2018, CMS named 12 claims across 1 drug.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 98 out of 100 for Dr. Maker for performance year 2026, reported as part of a group. Dr. Maker accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Maker as offering telehealth. CMS counts 12 procedures of melanoma (skin cancer) excision by Dr. Maker, more than 66% of the clinicians it reports for that procedure.

Removal of the uterus: 1 to 10 procedures (CMS shows small counts as a range)

Dmand AI links 112 papers to Dr. Maker, published from 2005 to 2025. 2024 was the busiest year, with 12. The most frequent topics are Pancreatic Neoplasms, Liver Neoplasms and Pancreatectomy. Dr. Maker has published most often in Ann Surg Oncol. Dr. Maker's most frequent co-authors are Vijay K. Maker, Carlos Uriel Corvera, MD and Adnan Ali Alseidi, MD.

CMS Open Payments shows 12 general payments to Dr. Maker from 8 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 40% of the total. Vector Surgical, LLC paid the most, $800.

Dmand AI lists 1 award for Dr. Maker.

Dr. Maker graduated from Yale School of Medicine in 2001. Dr. Maker is a member of ACS, ASCO, Americas Hepatopancreatobiliary Association (AHPBA), AAS, Pancreas Club and SSO.

Dr. Maker is in network with 11 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Cigna. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.