Northern Light Mercy Gastroenterology welcomes new specialists

Date: 09/12/2023

Northern Light Mercy Hospital is pleased to welcome Andrew Hsu, MD and Sarah Southard, ANP to Northern Light Mercy Gastroenterology. These experienced providers join a team of board-certified specialists that diagnose and treat digestive disorders such as gastroesophageal reflux disease (GERD), Crohn’s disease, irritable bowel syndrome (IBS), and pancreatitis, as well as provide screenings for colorectal cancer and polyp removal.

Andrew Hsu, MD
Dr. Andrew Hsu has extensive training in gastroenterology, advanced endoscopy, and internal medicine. He obtained his medical degree from New York University School of Medicine after earning a biochemistry and molecular biology bachelor’s degree from Brown University. He completed his internal medicine residency at University of Massachusetts Medical School before being fellowship trained in advanced endoscopy and gastroenterology at Dartmouth Hitchcock Medical Center in New Hampshire and John H. Stroger, Jr. Hospital of Cook County in Chicago, respectively.

Dr. Hsu’s personal interests include playing musical instruments such as violin, piano, and guitar, as well as outdoor activities like skiing, snowboarding, and tennis. He has a particular interest in taekwondo, having competed and placed nationally at collegiate and regional competitions.

Sarah Southard, ANP
Sarah Southard is an adult nurse practitioner experienced in colorectal, thoracic, and vascular surgery. She received her Master of Science degree in Adult Primary Healthcare Nursing from Simmons College in Boston, Massachusetts. She also completed extensive research on inpatient ostomy pathways to reduce readmission of patients with colorectal cancer. Prior to joining Mercy Hospital, Sarah worked in thoracic surgery at Maine Medical Center after serving for over 13 years in vascular and colorectal surgery departments at Beth Israel Deaconess Medical Center in Boston.

Outside of work, Sarah enjoys volunteering in her community and long-distance running, having finished six Boston Marathons. She is an active member of the Maine Responds Volunteer Registry, the Catherine Morrill Day Nursery, and the Foundation for Portland Public Schools.

To learn more or connect with a member of the gastroenterology team, please call 207-535-1100.