[Gastroenterologist Clermont & Davenport, FL - Reflux, Stomach Pain, Ulcers - Dr. Rajab Abukhadrah FACG / Dr. Khalid Maqsood FACG, FACP / Dr. Fadi Rahhal Board Certified / Tammy Covington ARNP, FNP-C Clermont & Davenport, FL Gastroenterologist, Dr. Rajab Abukhadrah FACG / Dr. Khalid Maqsood FACG, FACP / Dr. Fadi Rahhal Board Certified / Tammy Covington ARNP, FNP-C. Treating stomach pain, intestinal problems, acid reflux, constipation and other gastrointestinal problems.]