Colon Surgeons & Rectal Surgeons near Bronxville, NY

Biography: Cary B. Aarons is a Professor of Surgery at NewYork-Presbyterian/Columbia University Irving Medical Center. He received his undergraduate degree from Harvard University and his medical degree from Howard University College of Medicine in Washington, DC. He then completed his general surgery training at Boston University Medical Center followed by his colorectal surgery fellowship at the Mayo Clinic in Rochester, Minnesota. He has an interest in the management of the full spectrum of benign and malignant colorectal diseases including anorectal conditions, pelvic floor disorders, diverticulitis, colon and rectal cancer, and inflammatory bowel disease using minimally invasive and open surgical procedures. Dr. Aarons is currently the Program Director for the General Surgery Residency Program and the Vice Chair of Education for the Department of Surgery. He has been involved in medical education in various capacities, both regionally and nationally, and received a master's degree in Medical Education from the University of Pennsylvania Graduate School of Education.

Biography: Marco B. Zoccali is a minimally invasive surgeon with extensive expertise in the treatment of the broad range of colorectal diseases including IBD, colon and rectal cancers, and benign colorectal diseases. He received his medical degree at the Catholic University in Rome, Italy where he also completed his surgical training. He then came to the USA where he did a Minimally Invasive Gastrointestinal Surgery Fellowship at the University of Chicago followed by a surgical residency at Weill Cornell Medical Center. He then completed his Colon and Rectal Surgery Fellowship at the University of Chicago. Although committed to managing the entire spectrum of pathologies that can affect the lower intestinal tract, his personal interest lies mostly in minimally invasive approaches to colorectal conditions including the robotic platform and the management of inflammatory bowel diseases. Beyond his clinical practice, Dr. Zoccali is also a prolific researcher. He has published more than 50 articles in major surgical journals including The Journal of The American College of Surgeons, The British Journal of Surgery and Inflammatory Bowel Disease, and has contributed to several book chapters.

Biography: Makram Gedeon, MD, is a double board-certified bariatric and colorectal surgeon specialized in minimally-invasive approaches to colorectal and bariatric surgery. Dr. Gedeon is part of both the Colorectal Surgery team at several locations throughout New York and New Jersey and the Center for Advanced Surgery at Lawrence Hospital and Hudson Valley. Dr. Gedeon received his medical degree from the American University of Beirut in 2002 before completing an internship in surgery at the Mayo Clinic and a general surgery residency at the University of Texas Southwestern. He has undergone two fellowships - one in minimally-invasive surgery at the University of Texas Southwestern and another in colon and rectal surgery at NewYork-Presbyterian. Following his residency training, Dr. Gedeon spent ten years in a busy community hospital practice in Bristol, Connecticut, where he helped start and grow the practice's weight loss surgery program and served as its medical director until the end of 2018. Clinically, Dr. Gedeon is interested in the application of minimally-invasive and robotic surgery to treat colorectal diseases and obesity, specializing in bariatric surgery and revisions. His research focuses include surgical technology and clinical outcomes. He is fluent in English, Arabic and French.

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Biography: Dr. Ravi P. Kiran is the co-director of the Global Center for Integrated Colorectal Surgery and IBD Interventional Endoscopy at NewYork-Presbyerian/Columbia University Irving Medical Center. Prior to that, he served as chief and program director of the Division of Colorectal Surgery at NewYork-Presbyterian/Columbia University Irving Medical Center for over a decade. He is also the Director of the Center for Innovation and Outcomes Research in the Department of Surgery. Dr. Kiran, a renowned surgeon-scientist with expertise in inflammatory bowel disease, colorectal cancer, and other complicated colorectal conditions, joined NewYork-Presbyterian/Columbia from the Cleveland Clinic, where he was staff surgeon and head of the research section in the Department of Colorectal Surgery and director of its Rupert B. Turnbull Jr. School of Enterostomal Therapy. Dr. Kiran brings a wealth of experience in laparoscopic and open colorectal surgery, anorectal procedures and reoperative abdominal and pelvic surgery. With expertise in inflammatory bowel disease (IBD) like complex Crohn's disease and ulcerative colitis, he specializes in bowel conservation as well as avoiding an ostomy (external bag) for these conditions when others may be unable. Having trained with Dr Victor Fazio at the Cleveland Clinic, he is an expert at pouch procedures. In addition to J and S pouch creation, he has experience in the repair, revision and redo of these pouches when pouch failure occurs. In addition to IBD, he is also expert in the surgical management of primary and recurrent colon and rectal cancer, diverticulitis, enterocutaneous fistula, functional bowel problems including constipation, incontinence and pelvic floor disorders. He is one of only a few highly skilled surgeons world-wide to perform continent ileostomy reservoir procedures and other complex operations to avoid a permanent ostomy after rectal or colon resection. As a researcher, Dr. Kiran has specific interests in surgical outcomes and quality and in evidence-based strategies for inflammatory bowel disease and other conditions. With a joint appointment at Columbia University Vagelos College of Physicians and Surgeons and at Columbia's Mailman School of Public Health, Dr. Kiran facilitates research collaborations in epidemiology between the Department of Surgery and the Mailman School. Dr. Kiran received his medical degree from and completed surgical training at Osmania Medical College in Hyderabad, India, and received advanced training in colorectal surgery in the United Kingdom. He completed his general surgery residency at Yale-Saint Mary's Hospital and Bronx-Lebanon Hospital Center and fellowship training in colorectal surgery at the Cleveland Clinic. He is board certified in surgery and in colon and rectal surgery from the American College of Surgeons (FACS) and the American Society of Colon and Rectal Surgeons (FASCRS) and is a fellow of the Royal Colleges of Surgeons of England and Glasgow. The author of more than 200 peer-reviewed publications, Dr. Kiran is also an editor and reviewer for numerous prominent journals and textbooks. As a student and physician, he has earned several distinctions, including the National Merit Scholarship and Gold Medals during his medical education and surgical training in India, Resident Researcher of the Year during surgical residency, Teacher of the Year in Colorectal Surgery at Cleveland Clinic in 2011, and the ASCRS Travelling Fellow Award in 2012. He has been voted to the list of Best Doctors in New York many times. Dr Kiran has a patient-centered approach to care and is available to see patients at the Main Campus, Midtown and New Jersey colorectal surgery office locations. Watch Video Profile

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: 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: James Church, MD is a colorectal surgeon who cares for all aspects of colorectal disease, with a particular focus on hereditary colorectal cancers and polyposis. Born and raised in New Zealand, Dr. Church did his medical school, postgraduate research and general surgical training in Auckland before training in colorectal surgery at the Cleveland Clinic and eventually joining the faculty there. Over the 34 years that followed, he played an instrumental role in developing what was widely considered the finest Department of Colorectal Surgery in the world. Dr. Church has been co-Investigator of the Collaborative Colorectal Cancer Family Registry, funded by a research grant from the National Cancer Institute. In addition, he has served as the Chairman of the Leeds Castle Polyposis Group and the International Collaborative Group on Hereditary Non-Polyposis Colorectal Cancer and President of the Collaborative Group of the Americas on Inherited Colorectal Cancer. These international societies are dedicated to the care of patients with inherited colorectal cancer and research into their disease. Dr. Church's other areas of interests include colonoscopy, functional colorectal and anal problems including constipation and incontinence, perianal and perineal infections and inflammatory bowel disease. As head of the Section of Endoscopy at Cleveland Clinic, he helped develop several advances in the art of colonoscopy for the benefit of patients. He is also deeply commitment to education and is currently a Fellow of the American Society of Colon and Rectal Surgeons, American College of Surgeons, Costa Rican Society of Surgery, Royal Australasian College of Surgeons, American College of Gastroenterology, American Surgical Association and the Royal College of Physicians and Surgeons, Glasgow.