| Dr. Robert Ra Nien Tseng is a California state licensed medical doctor, specializing in Nephrology. Graduated Magna Cum Laude from Drexel Medical College of Pennsylvania, completed residency training in UC Davis, and completed the Nephrology specialist training at University of California. Dr. Tseng currently is working at Sutter Health, located in 1498 Southgate Ave #102 Daly City CA 94015 | |||