Dr. Alan Mermelstein

Dr. Andrawes currently serves as Director of Gastroenterology, Hepatology, and Nutrition, and Director of the Advanced Therapeutic Endoscopy Fellowship program at Staten Island University Hospital. His commitment to patient care and education is exceptional, as demonstrated by his dedication to training medical students, residents, GI fellows, and advanced endoscopy fellows. He holds regional and national recognition for his expertise in advanced therapeutic and interventional endoscopy, regularly presenting at national meetings and contributing to national gastroenterology societies. Following his advanced endoscopy fellowship under Dr. Gregory Haber at Lenox Hill Hospital in 2014, Dr. Andrawes joined Staten Island University Hospital. Within two years, he earned a strong regional reputation for managing complex endoscopic cases, leading to his appointment as Director of Endoscopy. Dr. Andrawes introduced a range of advanced procedures to Staten Island, including complex endoscopic mucosal resection, endoscopic submucosal dissection, endoscopic management of gallbladder disease, endoscopic drainage of pancreatic necrosis, peroral endoscopic myotomy, endoscopic suturing (including bariatric revisions), and closure of fistulas and perforations. He is among a select group of gastroenterologists proficient in these advanced techniques. In 2019, he established the advanced therapeutic endoscopy fellowship, which has graduated four fellows to date and is fully subscribed through 2025. As a dedicated educator and key clinical faculty member for the GI fellowship program, Dr. Andrawes consistently receives exemplary evaluations from trainees. He has successfully recruited two highly skilled advanced endoscopists, further enhancing the nationally recognized GI division. Dr. Andrawes thought leadership is evident in his research presentations at national meetings and his consistent promotion of scholarly activity among colleagues and fellows. He is frequently invited to serve as faculty at national advanced endoscopy courses. A distinguished leader in education, research, and clinical care, Dr. Andrawes has a strong regional and national reputation. Recognized by his peers as a trusted expert in complex endoscopic procedures, he is a recipient of the Top Doctors Award for New York. He has cultivated a highly skilled team that shares his vision and commitment to providing optimal patient outcomes. Dr. Andrawes is rated as a Distinguished provider by MediFind in the treatment of Gallstones. His top areas of expertise are Gallstones, Acute Pancreatitis, Gallbladder Disease, Endoscopy, and Gallbladder Removal.

Adam Elfant is a Gastroenterologist in Mount Laurel, New Jersey. Dr. Elfant is rated as a Distinguished provider by MediFind in the treatment of Gallstones. His top areas of expertise are Choledocholithiasis, Gallstones, Jaundice, Endoscopy, and Pancreatectomy.

Rishi Pawa is a Gastroenterologist in Philadelphia, Pennsylvania. Dr. Pawa is rated as a Distinguished provider by MediFind in the treatment of Gallstones. His top areas of expertise are Cholecystitis, Choledocholithiasis, Bile Duct Stricture, Endoscopy, and Gastric Bypass. Dr. Pawa is currently accepting new patients.