Family Doctor Joins TriValley Medical Associates Frank Lin, M.D., a family medicine doctor with more than 20 years of experience, has joined TriValley Medical Associates, with offices in Livermore and Pleasanton.Dr. Lin is accepting new patients and offers evening and Saturday hours, in addition to traditional hours during the week at both offices. Dr. Lin is trilingual, speaking Mandarin and Taiwanese, in addition to English. He joins practice founders T. Peter Wong, M.D., and Jeffrey Wherry, M.D.“Dr Lin