New Search Oscar L Chien M.D. (626) 569-2888 Primary Specialties Internal Medicine Secondary Specialties Geriatrics Date Appointed 10/1/1998 Additional Languages Spoken Mandarin, Taiwanese, Spanish Primary Office Address: 1448 S. San Gabriel Blvd. San Gabriel, CA 91776 Fax: (626) 569-9929 Recommend this Physician Get Directions