Dr. Sam Tzen-Yue Hwang, MD, PhD

Dr. Hwang practices at UC Davis Medical Center in Sacramento, California, part of University of California Health.

Dr. Hwang's NPI, 1760500813, was assigned on March 27, 2007. Dr. Hwang graduated from Harvard Medical School in 1991. Dr. Hwang's Wisconsin license number on file is 52541.

Dr. Hwang's primary practice is UC Davis Medical Center, at 2315 Stockton Boulevard, Sacramento, CA 95817 in Sacramento County. The practice phone is (916) 734-2011.

Dr. Hwang's primary practice is UC Davis Medical Center in Sacramento, California, part of University of California Health. Dr. Hwang is also affiliated with Froedtert Hospital. The medical group on file is UC Davis Medical Group. Dmand AI also links Dr. Hwang to 1 more medical group, named with a free account.

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

Dermatology is Dr. Hwang's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Hwang is board certified in dermatology by the American Board of Dermatology. Dmand AI has Dr. Hwang's licenses on file in 4 states: Wisconsin, California, Pennsylvania and Maryland.

Dmand AI lists acute skin infection, benign or precancerous skin growths, cancerous skin growth removal, contact dermatitis, corns and calluses, hives, itchy rashes and minor injury to a limb among the conditions Dr. Hwang treats.

CMS data shows 2,443 Medicare services from Dr. Hwang across 19 procedure codes in 2024, for 666 Medicare patients. Medicare paid $85,307 for them. Every service was in an office.

CMS counts 666 Medicare patients who saw Dr. Hwang in 2024. The largest group is 65 to 74, with 298 patients. 71% of them have high cholesterol, and 66% have high blood pressure. 14% are also on Medicaid. Their average risk score is 1.13, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Hwang's median patient age at 60, with 56% women.

In 2024, Dr. Hwang wrote 840 Medicare Part D claims for 229 patients. 67% of them were for generic drugs. CMS names the drug for 659 of them, across 18 drugs with 11 or more claims each, at $1,644,572 in total drug cost. In 2023, CMS named 753 claims across 23 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 90 out of 100 for Dr. Hwang for performance year 2024, reported as part of a group. Dr. Hwang accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hwang as offering telehealth. CMS counts 780 procedures of removal of skin lesions by Dr. Hwang, more than 91% of the clinicians it reports for that procedure.

Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)

Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)

Dmand AI links 30 papers to Dr. Hwang, published from 2003 to 2023. 2005 was the busiest year, with 2. The most frequent topics are Skin Neoplasms, Cell Adhesion and Cell Line, Tumor. Dr. Hwang has published most often in J Invest Dermatol. Dr. Hwang's most frequent co-authors are Andrew Blauvelt, MD, Steven T. Rosen, MD and Steven E. Finkelstein, MD.

Dmand AI links Dr. Hwang to 2 clinical trials. Conditions studied include Sezary Syndrome, Lymphoma, T-Cell, Cutaneous and Mycosis Fungoides.

CMS Open Payments shows 66 general payments to Dr. Hwang from 12 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 65% of the total. Kyowa Kirin, Inc. paid the most, $19,009.

Dmand AI lists 3 awards for Dr. Hwang, most recently Regional Top Doctor in 2014.

Dr. Hwang graduated from Harvard Medical School in 1991. Dr. Hwang is a member of AAD.

Dr. Hwang is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.