Beth A. Schrope, MD, PhD, FACS

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).

Dr. Mark E. Ginsburg is an associate Professor of Surgery at Columbia University Medical Center and surgical director of the Diaphragm Program and the Lung Volume Reduction program. Dr. Ginsburg received his MD from Tufts University School of Medicine in 1980, completed his General Surgery residency in 1985 and Thoracic and Cardiovascular Residency in 1987 both at the University of Rochester Medical Center. He is renown for his surgical work in patients with disorders of the Diaphragm, and is one of few surgeons in the country to perform pacing of the diaphragm. Dr. Ginsburg has lectured and published extensively on this subject, and recently addressed the 95th AATS Annual Meeting in 2015, presenting ten-year data on lung volume reduction surgery (LVRS). The results, based primarily on surgical experience in the Division of Thoracic Surgery at New York-Presbyterian/Columbia, showed durable benefits that should promote wider adoption of LVRS in patients with severe emphysema. Dr. Ginsburg has been an invited speaker and principal and co-investigator of numerous clinical trials, author of numerous publications in renown journals such as the Journal of The American College of Cardiology, Annals of Thoracic Surgery, and the Journal of Heart and Lung Transplant, among many others, including co-author of the book, Lung Volume Reduction Surgery published by Humana Press. He’s also currently on the department of surgery QA committee and is a member of numerous professional societies including, the American College of Surgeons, New York State Medical Society, New York Society of Thoracic Surgeons, the Society of Thoracic Surgeons and the International Society for Heart and Lung Transplantation.

Dr. Esther Kim is an Assistant Professor of Dermatology and Associate Program Director of the Dermatology Residency Program at Columbia University Medical Center. Dr. Kim received her undergraduate degree from the University of Pennsylvania and her medical degree from the University of Central Florida. She completed her Transitional Year internship at the University of Central Florida, Osceola Regional Medical Center and completed her Dermatology residency at the University of Chicago where she was selected as Chief Resident.Dr. Kim is an active member of the American Academy of Dermatology and the Women’s Dermatologic Society. She has authored numerous publications and presented research at national and local conferences. She has a strong interest in medical dermatology and graduate medical education. Dr. Kim is committed to providing evidence-based care and the utmost compassion for her patients of all backgrounds.