Dr. May Cheng-Su Chen, MD

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

Dr. Chen's NPI, 1386603447, was assigned on March 18, 2006. Dr. Chen graduated from Yale School of Medicine in 1993. Dr. Chen holds California license G83884.

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 Stanford Health Care Tri-Valley. The medical group on file is Stanford Health Care. Dmand AI also links Dr. Chen to 3 more hospitals, 2 group practices and clinics and 2 medical groups, 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, 7 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 medical oncology 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 1,887 Medicare services from Dr. Chen across 9 procedure codes in 2024, for 607 Medicare patients. Medicare paid $112,292 for them.

CMS counts 607 Medicare patients who saw Dr. Chen in 2024. The largest group is 65 to 74, with 265 patients. 75% of them have high cholesterol, and 72% have cancer. 13% are also on Medicaid. Their average risk score is 1.65, 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 63, with 74% women.

In 2024, Dr. Chen wrote 642 Medicare Part D claims for 161 patients. 85% of them were for generic drugs. CMS names the drug for 388 of them, across 15 drugs with 11 or more claims each, at $334,650 in total drug cost. In 2023, CMS named 364 claims across 13 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 2 papers to Dr. Chen, published from 2019 to 2024. Dr. Chen's most frequent co-authors are Elwyn Clement Cabebe, MD, Thomas Tai Hon Chen, MD and Alexander Li-Che Chin, MD.

CMS Open Payments shows 13 general payments to Dr. Chen from 7 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 82% of the total. AstraZeneca Pharmaceuticals LP paid the most, $176.

Dmand AI lists 1 award for Dr. Chen.

Dr. Chen graduated from Yale School of Medicine in 1993. Dr. Chen is a member of ASCO.

Dr. Chen is in network with 8 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.