AnorectalFistula near Summit, NJ

Biography: Dr. Usama Ahmed Ali is a colorectal surgeon who has expertise in the whole gamut of colorectal surgery, including minimally invasive and open colorectal surgical procedures, anorectal operations, and colonoscopy. He completed his medical training at Utrecht University in the Netherlands in 2007. He then did colorectal research as a PhD researcher and was a colorectal research fellow at the Cleveland Clinic in 2011 under the guidance of Dr. Pokala Ravi Kiran. He trained in general and colorectal surgery at the University Medical Center Utrecht and the St. Antonius Hospital in The Netherlands after which he worked as a general and colorectal surgeon in Riverieland Ziekenhuis in Tiel until 2022. Dr. Ahmed Ali has an interest in a wide spectrum of colorectal conditions including benign colorectal conditions, diverticular disease, colon and rectal cancer, inflammatory bowel disease, polyposis and anorectal disorders such as hemorrhoids, abscesses and anal fistulas. Dr. Ahmed Ali trained extensively with Dr. Kiran and Dr. James Church. He works collaboratively with Dr. Church on complex fistula disease within the Anal Fistula Center and is part of the Hereditary Cancer and Familial Polyposis Center. He also works closely with Dr. Kiran in the management of various conditions including complex and reoperative colorectal surgery. Dr. Ahmed Ali has a double PhD in medicine, one of which is in the surgical treatment of inflammatory bowel disease. He also has a Masters in Evidence-Based Medicine from Oxford University. He is a Member of Dutch Society for Surgery and Dutch Society for Gastro-intestinal Surgery (2021).

Biography: Dr. Merab Krikhely, MD is a General Surgery Specialist who practices in Brooklyn, NY. He is 72 years old and has been practicing for 49 years. Dr. Merab Krikhely, MD is affiliated with Mount Sinai Brooklyn and Mount Sinai Hospital.

Biography: Dr. Linda Zhang, MD is a General Surgery Specialist who practices in New York, NY. She is 45 years old and has been practicing for 18 years. Dr. Linda Zhang, MD is affiliated with Mount Sinai Hospital.

Biography: Dr. Dionigi is a double board certified colon and rectal surgeon with a specific interest and expertise in colon and rectal cancer, polyposis syndromes, re-operative colorectal surgery, as well as robotic and minimally invasive procedures. Dr. Dionigi obtained her medical degree with highest honors from the University of Pavia, Italy. After a surgical internship at NewYork-Presbyterian/Weill Cornell Medical Center in New York, she completed her general surgery residency at the Brigham and Women's Hospital Harvard Medical School in Boston. During this time, she also did a two-year translational research fellowship related to mesenchymal stem cells at Boston Children Hospital. She then completed a colon and rectal surgery fellowship at the Salvati Fellowship Program at Rutgers Robert Wood Johnson in New Jersey, followed by two years of advanced training in complex reoperative colorectal surgery at the Cleveland Clinic Foundation in Ohio. Dr. Dionigi then joined the Division of Colorectal Surgery at NewYork-Presbyterian/Columbia University Irving Medical Center as Assistant Professor of Surgery. Since her arrival at NYP/Columbia, she has created the Women in Surgery Association (WINGS) first of its kind at Columbia with the goal of promoting women in leadership, she has served as Associate Program Director of the General Surgery Residency Program, and she is the founder and co-Chair of the collaborative translational project on Early Onset Colon and Rectal Cancer within the Columbia Research Cancer Center. Her dedication to the education of surgery residents was recognized with the 2023 Teacher Award. She is the author of several publications, received national and international awards for her research, and has been an invited speaker to national and international meetings.

Biography: Roger Patrn-Lozano, MD, is a colorectal surgeon at New York-Presybyterian Medical Group Queens and an assistant professor in clinical surgery at Weill Cornell Medicine. He specializes in robotic and minimally invasive surgery and has an expertise in treating inflammatory bowel disease, rectal prolapse, diverticular disease and colon and rectal cancers. Dr. Patrn-Lozano has been published in numerous medical journals, including the Journal of the American College of Surgeons, the Journal of Gastrointestinal Surgery, The Journal of Surgical Research and more. He has presented his research at annual medical meetings including the Digestive Disease Week and as an invited lecturer and facilitator at Yale University on topics, including trauma and emergency general surgery, and endoscopic surgery. Dr. Patrn-Lozano is a candidate member of the American College of Colon and Rectal Surgeons, a member of the Yale Surgical Society, and a reviewer for the journal Diseases of the Colon and Rectum. After graduating from Anahuac University School of Medicine in Mexico, Dr. Patrn-Lozano completed his general surgery residency at Yale-New Haven Hospital at Yale School of Medicine and served his fellowship in colon and rectal surgery at Indiana University Medical Center.