Dr. Joseph Sze-Tsu Chan, MD

Dr. Chan practices at Fontana Medical Center in Fontana, California, part of Kaiser Permanente.

Dr. Chan's NPI, 1497796189, was assigned on June 10, 2006. Dr. Chan graduated from Vanderbilt University School Of Medicine in 2001. Dr. Chan holds California license A99860.

Dr. Chan's primary practice is Fontana Medical Center, at 9961 Sierra Ave, Fontana, CA 92335 in San Bernardino County. The practice phone is (909) 427-5000.

Dr. Chan's primary practice is Fontana Medical Center in Fontana, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Chan 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. Chan practices, 2 sites in all. Vendor and product names are available with a free account.

Hematology and oncology is Dr. Chan's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Chan is board certified in hematology by the American Board of Internal Medicine. Dmand AI has Dr. Chan's licenses on file in 3 states: California, Oregon and Washington.

Dmand AI lists chronic anemia among the conditions Dr. Chan treats.

CMS data shows 39 Medicare services from Dr. Chan across 1 procedure code in 2024, for 32 Medicare patients. Medicare paid $81 for them. Every service was in an office.

CMS counts 32 Medicare patients who saw Dr. Chan in 2024. The largest group is 65 to 74, with 13 patients. 56% of them have high blood pressure, and 47% have cancer. 41% are also on Medicaid. Their average risk score is 1.97, 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. Chan's median patient age at 62, with 65% women.

In 2024, Dr. Chan wrote 2,178 Medicare Part D claims for 403 patients. 80% of them were for generic drugs. CMS names the drug for 1,945 of them, across 31 drugs with 11 or more claims each, at $5,366,628 in total drug cost. In 2023, CMS named 1,663 claims across 24 drugs.

Dr. Chan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chan as offering telehealth.

Dmand AI links 4 papers to Dr. Chan, published from 2009 to 2013. Dr. Chan's most frequent co-author is Cary Owen Harding, MD.

Dmand AI links Dr. Chan to 1 clinical trial. Conditions studied include Parkinson Disease and Parkinsonian Disorders. Open Payments lists research payments to Dr. Chan that name 1 trial.

CMS Open Payments shows 2 general payments to Dr. Chan from 1 drug or device company from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $157. It also lists 3 research payments totaling $644 in 2017, naming 1 clinical trial.

Dmand AI lists 1 award for Dr. Chan, most recently CMS Stage 1 2012 in 2011.

Dr. Chan graduated from Vanderbilt University School Of Medicine in 2001. Dr. Chan is a member of ASCO.

Dr. Chan is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.