Gastrointestinal Associates was founded in 1972 by William Mahood, MD, the first board certified gastroenterologist on staff at Abington Memorial Hospital and Holy Redeemer Hospital, and the first person to introduce modern GI techniques, including endoscopy and colonoscopy, to Montgomery County. Over the past 40 years, the practice has grown steadily and has added expertise in a wide range of GI diseases and techniques. Our current staff of 20 professional health care providers is ethnically diverse and includes 6 women. In 2006 the practice opened a satellite office in Doylestown providing comprehensive office and procedural services to patients throughout Montgomery and Bucks Counties. In 2018, we moved our Doylestown facility to Chalfont, New Britain Township, PA to expand these services. Gastrointestinal Associates, Inc. now serves Philadelphia, Montgomery and Bucks Counties. Our physicians are on staff at Abington/Jefferson, Lansdale/Jefferson, and Holy Redeemer Hospitals.