St. Luke's Buxmont Gastroenterology. Gastroenterology, Nursing (Nurse Practitioner) • 5 Providers. 1107 Bethlehem Pike, Sellersville PA, 18960. Make an Appointment. Show Phone Number. Telehealth services available. St. Luke's Buxmont Gastroenterology is a medical group practice located in Sellersville, PA that specializes in Gastroenterology ....