Dr. Eric J. Mao, MD

Dr. Mao practices at UC Davis Medical Center in Sacramento, California, part of University of California Health.

Dr. Mao's NPI, 1043503295, was assigned on May 20, 2011. Dr. Mao graduated from The Warren Alpert Medical School of Brown University in 2011. Dr. Mao holds California license A147641.

Dr. Mao's primary practice is UC Davis Medical Center, at 2315 Stockton Boulevard, Sacramento, CA 95817 in Sacramento County. The practice phone is (916) 734-2011.

Dr. Mao's primary practice is UC Davis Medical Center in Sacramento, California, part of University of California Health. Dr. Mao is also affiliated with Sutter Medical Center, Sacramento. The medical group on file is UC Davis Medical Group. Dmand AI also links Dr. Mao to 2 more group practices and clinics and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mao practices, 4 sites in all. Vendor and product names are available with a free account.

Gastroenterology is Dr. Mao's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Mao is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Mao's licenses on file in 2 states: California and Rhode Island.

Dmand AI lists acid reflux, chronic inflammatory bowel disease (IBD), colonoscopy, gastroenteritis, hemorrhoids, intestinal or bowel obstruction, irritable bowel syndrome (IBS) and upper GI endoscopy among the conditions Dr. Mao treats.

CMS data shows 361 Medicare services from Dr. Mao across 7 procedure codes in 2024, for 195 Medicare patients. Medicare paid $32,135 for them. Every service was in an office.

CMS counts 195 Medicare patients who saw Dr. Mao in 2024. The largest group is 65 to 74, with 93 patients. 67% of them have high cholesterol, and 62% have high blood pressure. 25% are also on Medicaid. Their average risk score is 1.41, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Mao's median patient age at 49, with 55% women.

In 2024, Dr. Mao wrote 706 Medicare Part D claims for 169 patients. 39% of them were for generic drugs. CMS names the drug for 589 of them, across 18 drugs with 11 or more claims each, at $5,828,918 in total drug cost. In 2023, CMS named 521 claims across 15 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 90 out of 100 for Dr. Mao for performance year 2024, reported as part of a group. Dr. Mao accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Mao as offering telehealth. CMS counts 50 procedures of colonoscopy by Dr. Mao, more than 64% of the clinicians it reports for that procedure.

Dmand AI links 29 papers to Dr. Mao, published from 2011 to 2025. 2024 was the busiest year, with 6. The most frequent topics are Cerebral Hemorrhage, Hemoglobins and Inflammatory Bowel Diseases. Dr. Mao has published most often in Crohns Colitis 360. Dr. Mao's most frequent co-authors are David Jinou Roh, MD, Edward Sander Connolly, MD and Jan Claassen, MD.

CMS Open Payments shows 50 general payments to Dr. Mao from 13 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 52% of the total. Pfizer Inc. paid the most, $3,618.

Dr. Mao graduated from The Warren Alpert Medical School of Brown University in 2011.

Dr. Mao is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.