Dr. Ann M. Chen, MD

Dr. Chen practices at Santa Clara Valley Medical Center in San Jose, California, part of County of Santa Clara, CA.

Dr. Chen's NPI, 1003840307, was assigned on July 10, 2006. Dr. Chen graduated from Albert Einstein College of Medicine in 2000. Dr. Chen holds California license A76890.

Dr. Chen's primary practice is Santa Clara Valley Medical Center, at 751 South Bascom Avenue, San Jose, CA 95128 in Santa Clara County. The practice phone is (408) 885-5000.

Dr. Chen's primary practice is Santa Clara Valley Medical Center in San Jose, California, part of County of Santa Clara, CA. The medical group on file is County of Santa Clara Behavioral Health Services, Las Plumas Behavioral Health Clinic. Dmand AI also links Dr. Chen to 1 more community health center, 1 group practice or clinic and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 3 sites in all. Vendor and product names are available with a free account.

Gastroenterology is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Chen is board certified in gastroenterology by the American Board of Internal Medicine. Dr. Chen is licensed in California.

Dmand AI lists colonoscopy, gastrointestinal bleeding, hemorrhoids, irritable bowel syndrome (IBS) and upper GI endoscopy among the conditions Dr. Chen treats.

CMS data shows 107 Medicare services from Dr. Chen across 5 procedure codes in 2024, for 112 Medicare patients. Medicare paid $6,933 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 112 Medicare patients who saw Dr. Chen in 2024. The largest group is 65 to 74, with 56 patients. 75% of them have high blood pressure, and 64% have high cholesterol. 85% are also on Medicaid. Their average risk score is 2.40, 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. Chen's median patient age at 73, with 55% women.

In 2024, Dr. Chen wrote 138 Medicare Part D claims for 35 patients. 83% of them were for generic drugs. CMS names the drug for 105 of them, across 5 drugs with 11 or more claims each, at $6,902 in total drug cost. In 2023, CMS named 147 claims across 7 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 61 out of 100 for Dr. Chen for performance year 2024, reported as part of a group. Dr. Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chen as offering telehealth. CMS counts 63 procedures of colonoscopy by Dr. Chen, more than 69% of the clinicians it reports for that procedure.

Dmand AI links 35 papers to Dr. Chen, published from 2008 to 2025. 2014 was the busiest year, with 8. The most frequent topics are Colonoscopy, Adenoma and Bone Marrow Transplantation. Dr. Chen has published most often in Gastrointest Endosc. Dr. Chen's most frequent co-authors are Subhas Banerjee, MD, Shai Friedland, MD and Brendan Christopher Visser, MD.

CMS Open Payments shows 36 general payments to Dr. Chen from 2 drug and device companies from 2016 to 2023. Speaker and faculty fees make up the largest share, 80% of the total. Boston Scientific Corporation paid the most, $16,736.

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

Dr. Chen graduated from Albert Einstein College of Medicine in 2000. Dr. Chen is a member of AGA and American Society of Gastrointestinal Endoscopy (ASGE).

Dr. Chen is in network with 4 carriers, including Aetna, Blue Cross Blue Shield of Michigan and CMS Medicare. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.