Dr. Thomas Tai Hon Chen, MD

Dr. Chen practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University.

Dr. Chen's NPI, 1891870317, was assigned on October 25, 2006. Dr. Chen graduated from Stanford University School Of Medicine in 1996. Dr. Chen holds California license G84369.

Dr. Chen's primary practice is Stanford Hospital at 300 Pasteur Drive, at 300 Pasteur Drive, Stanford, CA 94305 in Santa Clara County. The practice phone is (650) 723-4000.

Dr. Chen's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dr. Chen is also affiliated with Santa Clara Valley Medical Center. The medical group on file is Stanford Health Care. Dmand AI also links Dr. Chen to 3 more hospitals, 2 group practices and clinics, 1 home health agency and 1 medical group, each named with a free account. Dr. Chen's employer is on file too: a hospital.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 8 sites in all. Vendor and product names are available with a free account.

Medical oncology is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207RX0202X. Dr. Chen is board certified in internal medicine by the American Board of Internal Medicine. Dr. Chen is licensed in California.

Dmand AI lists breast cancer, chronic anemia, chronic leukemia, colorectal cancer, lung cancer, lymphoma, multiple myeloma and neutropenia among the conditions Dr. Chen treats.

CMS data shows 3,182 Medicare services from Dr. Chen across 8 procedure codes in 2024, for 620 Medicare patients. Medicare paid $226,657 for them.

CMS counts 620 Medicare patients who saw Dr. Chen in 2024. The largest group is 75 to 84, with 262 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 17% are also on Medicaid. Their average risk score is 2.07, 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 67, with 56% women.

In 2024, Dr. Chen wrote 992 Medicare Part D claims for 194 patients. 77% of them were for generic drugs. CMS names the drug for 596 of them, across 21 drugs with 11 or more claims each, at $870,050 in total drug cost. In 2023, CMS named 426 claims across 20 drugs.

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

Dmand AI links 3 papers to Dr. Chen, published from 2021 to 2024. 2021 was the busiest year, with 2. The most frequent topics are Lung Neoplasms. Dr. Chen's most frequent co-authors are Millie Snigdha Das, MD, Joel William Neal, MD, PhD and Kavitha Jennifer Ramchandran, MD.

CMS Open Payments shows 7 general payments to Dr. Chen from 5 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 97% of the total. AstraZeneca Pharmaceuticals LP paid the most, $375.

Dr. Chen graduated from Stanford University School Of Medicine in 1996. Dr. Chen is a member of ASCO.

Dr. Chen is in network with 10 carriers, including Aetna, Excellus BlueCross BlueShield and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 6. Check the plan with the practice before a visit.