Dr. Thomas C. Chen, MD, PhD

Dr. Chen practices at Keck Hospital of USC in Los Angeles, California, part of University of Southern California.

Dr. Chen's NPI, 1225071509, was assigned on June 14, 2006. Dr. Chen graduated from UCSF School of Medicine in 1988. Dr. Chen holds California license G66798.

Dr. Chen's primary practice is Keck Hospital of USC, at 1500 San Pablo Street, Los Angeles, CA 90033 in Los Angeles County. The practice phone is (323) 442-8656.

Dr. Chen's primary practice is Keck Hospital of USC in Los Angeles, California, part of University of Southern California. Dr. Chen is also affiliated with Los Angeles General Medical Center. The medical group on file is USC Care Medical Group. Dmand AI also links Dr. Chen to 2 more hospitals, 2 group practices and clinics, 1 other site, 1 urgent care center 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, 8 sites in all. Vendor and product names are available with a free account.

Neurological surgery is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dr. Chen is board certified in neurological surgery by the American Board of Neurological Surgery. Dmand AI has Dr. Chen's licenses on file in 4 states: California, Arizona, North Dakota and Wisconsin.

Dmand AI lists back and neck pain treatment without fusion, craniotomy, lower back pain, muscle pain, fibromyalgia, and limb pain, neck pain and spine problems and spinal fusion among the conditions Dr. Chen treats.

CMS data shows 212 Medicare services from Dr. Chen across 3 procedure codes in 2024, all of them office visits, for 128 Medicare patients. Medicare paid $11,376 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 128 Medicare patients who saw Dr. Chen in 2024. The largest group is 65 to 74, with 50 patients. 75% of them have arthritis, and 75% have high blood pressure. 56% are also on Medicaid. Their average risk score is 2.05, 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 65, with 50% women.

In 2024, Dr. Chen wrote 16 Medicare Part D claims for 13 patients. 100% of them were for generic drugs. They cover 3 drugs, with $394 in total drug cost. In 2021, CMS named 43 claims across 3 drugs.

Dr. Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chen as offering telehealth. CMS counts 59 procedures of spinal fusion by Dr. Chen, more than 60% of the clinicians it reports for that procedure.

Dmand AI links 72 papers to Dr. Chen, published from 1997 to 2025. 2018 was the busiest year, with 7. The most frequent topics are Brain Neoplasms, Dog Diseases and Dogs. Dr. Chen's most frequent co-authors are Kavitha Jennifer Ramchandran, MD, Elwyn Clement Cabebe, MD and Michael F. Gensheimer, MD.

Dmand AI links Dr. Chen to 3 clinical trials. Conditions studied include Astrocytoma, Glioblastoma and Oligodendroglioma. University of Southern California sponsors the most, 2.

CMS Open Payments shows 89 general payments to Dr. Chen from 25 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 38% of the total. Novocure Inc. paid the most, $5,947.

Dmand AI lists 21 awards for Dr. Chen, most recently America's Top Doctors in 2014.

Dr. Chen graduated from UCSF School of Medicine in 1988. Dr. Chen is a member of AANS, ACS and CNS.

Dr. Chen is in network with 9 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.