Dr. Diane Kwan is Board Certified in General Surgery and is a member of the Epic Care team. Dr. Kwan focuses on abdominal wall hernia and reconstruction, gastrointestinal and billary disease, hiatal hernia and gastroesophageal reflux disease, bariatric and weight loss surgery, robotic and advanced minimally invasive surgery. She is accepting new patients and has privileges at Aspen Surgery Center, Contra Costa Regional Medical Center, John Muir Medical Center (Concord and Walnut Creek) and San Ramon Regional Medical Center.