Ajay J. Kirtane, MD

Michael Brener, MD, MS, is an interventional cardiologist with over five years of experience treating patients with a variety of cardiovascular conditions, specifically coronary artery disease, heart failure, and heart valve abnormalities. He is board-certified in internal medicine, cardiology, and interventional cardiology. Dr. Brener serves as a full-time faculty member of the Columbia University Irving Medical Center and is an Assistant Professor of Medicine at the Columbia University School of Medicine. Dr. Brener completed his medical degree and training in internal medicine at the Johns Hopkins University in Baltimore, Maryland. Before starting his training in cardiology, Dr. Brener was an Assistant Chief of Service (Chief Resident) at the Johns Hopkins Hospital. He then completed his cardiovascular disease, interventional cardiology, and structural interventional cardiology fellowships at Columbia University Irving Medical Center in New York City. Dr. Brener's clinical practice focuses on cardiac catheterization, percutaneous treatment of coronary artery disease with stents and angioplasty, and procedures to treat heart valve conditions like transcatheter aortic valve replacement (TAVR) and mitral transcatheter edge-to-edge repair. In addition, Dr. Brener is an active researcher with a faculty appointment at the Cardiovascular Research Foundation. His work focuses on cardiovascular hemodynamics in patients with heart failure and valvular heart disease.

Charles M. Jobin, MD, specializes in treating shoulder and elbow disorders in adults, which includes rotator cuff tears, shoulder instability, tendon and ligament injuries, arthritis and fractures. He is skilled at performing total joint replacements as well as minimally invasive, arthroscopic procedures. Dr. Jobin cares for local athletes and has provided orthopedic coverage for the Tournament of Champions – the world’s largest squash spectator event held annually in Grand Central Terminal. He is the team physician for Riverdale Country School and tends to the orthopedic needs of rugby, lacrosse, and club sports players at Columbia University. During his residency, he also provided coverage for Columbia University Athletics and City College of New York Athletics. Dr. Jobin’s research focuses on the optimization of shoulder replacement outcomes, rotator cuff repair, and tendon injuries. He has co-authored seven book chapters on a range of orthopedic topics and published articles in several of the top journals in his field, including the Journal of Shoulder and Elbow Surgery, the American Journal of Sports Medicine, and the Journal of Bone and Joint Surgery. Dr. Jobin is a member of the International Society of Orthopaedic Surgery and Traumatology, the Alpha Omega Alpha Medical Honor Society, and the American Academy of Orthopaedic Surgeons (AAOS). In 2011, he was inducted into the AAOS Emerging Leaders Program. Inclusion in the prestigious Emerging Leaders Program denotes that an AAOS member is among “a highly select group of orthopaedists who are poised to impact the specialty now and in the future.”

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