Welcome to Advanced Gastroenterology Associates A Division of Allied Digestive Health Dr's. Tendler, Cencora, Gold, Pitchumoni, Vazirani, Tilara and Alansari welcome you to Advanced Gastroenterology Associates, LLC. We collectively have over 75 years of experience and offer our patient's unsurpassed expertise, compassion, trust and follow-up care. As Board Certified Gastroenterologists and ....