Shay Murphy, Physician Assistant at Mid-Columbia Medical Center Learn more about Physician Assistant, Shay Murphy at Mid-Columbia Medical Center in this video biography. Related Videos Sports Medicine Physician, Dr. Mark Cullen and The Dalles Wahtonka High School Football Team Play Video Mandy Pray, Certified Nurse Midwife Play Video Dr. Ananda Boyer, OB/GYN at Mid-Columbia Medical Center Play Video