Dr. Man-Siak Mak, MD

Dr. Man-Siak Mak is a gastroenterologist and internal medicine physician with 58 years of experience treating digestive and general health conditions. He earned his medical degree from the National Defense Medical Center in Taiwan and completed his residency at St. Clare's Hospital and Healthcare Center. Dr. Mak is multilingual, speaking Spanish, Chinese, Portuguese, and English to serve diverse patient populations.

Dr. Mak is affiliated with Mercy Medical Center and practices at multiple locations throughout Merced, California. He specializes in diagnosing and treating common digestive issues such as colon polyps, GERD, and hemorrhoids. His expertise includes performing colonoscopies and both upper and lower gastrointestinal endoscopies to help patients maintain their digestive health. Patients have given Dr. Mak an average rating of 4.3 out of 5.