Amanda Tsang, NP

Deborah A. Fuentes, NP, is a dedicated Nurse Practitioner specializing in Medical Oncology, affiliated with New York Presbyterian and Columbia University Irving Medical Center. She offers comprehensive healthcare services, ensuring patients receive personalized attention and expert care in a supportive environment. With a focus on patient engagement, Deborah A. Fuentes utilizes the Columbia Connect app and patient portal to facilitate communication, appointment management, and access to medical documentation. Her commitment to patient safety and quality care is evident through her leadership in the healthcare community. Generated from the website

Jeffrey A. Geller, MD, specializes in arthritic disorders of the hip and knee. He has extensive training in joint replacements and performs surgery using some of the latest and most advanced minimally invasive techniques. These procedures include partial knee replacements, anterior hip replacements, hip resurfacing, as well as minimally invasive hip and knee replacements. Dr. Geller performs both primary joint replacement surgery and revisions of failed or painful joint replacements, but only after considering all non-operative treatment options. He also specializes in trauma of the lower extremity including hip fractures, fractures around joint replacements, and fractures related to osteoporosis. Dr. Geller’s other clinical focus is pre-emptive pain control, i.e. preventing post-op surgical pain before it can start, to enable a faster, more comfortable rehab process. Dr. Geller is actively involved in orthopedic research and education and is conducting several large-scale research projects on some of the most advanced topics in joint reconstruction. In addition to teaching medical students and residents, he lectures at national orthopedic conferences and has authored numerous textbook chapters and peer-reviewed articles.

Gerthy Michel, NP, is a board certified Nurse Practitioner in the Division of Colorectal Surgery who graduated from Pace University. Prior to becoming a Nurse Practitioner, Gerthy worked as an Outpatient Ambulatory care Nurse at NYP/Columbia for 13 years. Gerthy works closely with Dr. Pokala Ravi Kiran, and all the colorectal surgeons in the Division. She sees patients in collaboration with the Colorectal Attending Surgeons in the outpatient setting from their initial consult examination through their entire post-operative period. She educates and triage patients and their families with common concerns relating to colorectal disorders. Gerthy has expertise in the evaluation and management of Pelvic Floor Disorders through specialized procedures such as Anorectal Manometry, Biofeedback, and Pelvic Floor Therapy through the Division of Colorectal Surgery’s Pelvic Floor Program.