Perkin, Shiu M.D.Attending PhysicianCardiology Internal Medicine Education: UC San Diego School of MedicineMain Office:925-937-1770 John Muir Health 1450 Treat Blvd #220B Walnut Creek, CA 94597 Clinic Intersts:invasive cardiology, cardiovascular imaging, pulmonary hypertension, cardiac device management.Additional Office: 2700 Grant St. #106 Concord, CA 94520925 685-7598 Hospital Affiliations: Walnut Creek Medical Center and Concord Medical Center