Dr. Billy Chen, MD, PhD

Dr. Chen practices at Roseville Medical Center in Roseville, California, part of Kaiser Permanente.

Dr. Chen's NPI, 1609168475, was assigned on May 11, 2011. Dr. Chen graduated from Boston University School Of Medicine in 2011. Dr. Chen holds California license A168212.

Dr. Chen's primary practice is Roseville Medical Center, at 1600 Eureka Road, Roseville, CA 95661 in Placer County. The practice phone is (916) 784-4000.

Dr. Chen's primary practice is Roseville Medical Center in Roseville, California, part of Kaiser Permanente. Dr. Chen is also affiliated with Sacramento Medical Center. The medical group on file is The Permanente Medical Group, Inc.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 2 sites in all. Vendor and product names are available with a free account.

Cardiovascular disease is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Chen is board certified in cardiovascular disease by the American Board of Internal Medicine. Dmand AI has Dr. Chen's licenses on file in 3 states: California, Washington and Massachusetts.

CMS data shows 107 Medicare services from Dr. Chen across 1 procedure code in 2024, for 123 Medicare patients. Medicare paid $607 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 123 Medicare patients who saw Dr. Chen in 2024. The largest group is 65 to 74, with 58 patients. 75% of them have high blood pressure, and 67% have high cholesterol. 68% are also on Medicaid. Their average risk score is 1.92, 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 59, with 58% women.

In 2024, Dr. Chen wrote 1,109 Medicare Part D claims for 287 patients. 81% of them were for generic drugs. CMS names the drug for 1,017 of them, across 28 drugs with 11 or more claims each, at $469,136 in total drug cost. In 2023, CMS named 649 claims across 18 drugs.

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

Dmand AI links 16 papers to Dr. Chen, published from 2011 to 2021. The most frequent topics are Predictive Value of Tests, Anthracyclines and Antibiotics, Antineoplastic. Dr. Chen's most frequent co-authors are Matthew J. Budoff, MD, Douglas B. Sawyer, MD and Suhny Abbara, MD.

CMS Open Payments shows 17 general payments to Dr. Chen from 1 drug or device company from 2017 to 2018. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $198.

Dmand AI lists 7 awards for Dr. Chen, most recently Internal Medicine Residency Citizenship Award in 2014.

Dr. Chen graduated from Boston University School Of Medicine in 2011. Dr. Chen is a member of ACP, AHA, AMA and MMS.

Dr. Chen is in network with 3 carriers, including Kaiser Permanente, AK State Medicaid and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.