Dr. Dennis Y. Chan is a gastroenterologist in Monterey Park, California and is affiliated with multiple hospitals in the area, including Garfield Medical Center and Alhambra Hospital Medical Center. He received his medical degree from University of Hong Kong Faculty of Medicine and has been in practice for more than 20 years. Dr. Dennis Y. Chan has expertise in treating colonoscopy, upper gi endoscopy, gastroenteritis, among other conditions - see all areas of expertise. Dr. Dennis Y. Chan accepts Medicare, Aetna, Humana, Blue Cross, United Healthcare - see other insurance plans accepted.