Miguel R. Silva, MD

Dr. Lebwohl is a graduate of Harvard College, where he majored in music. He received his MD from Columbia College of Physicians and Surgeons in 2003, and then completed his internship, residency, and chief residency in internal medicine at Columbia. He stayed at Columbia as a fellow in Digestive and Liver Disease, during which time he obtained a Master's in Patient Oriented Research from the Department of Biostatistics at the Mailman School of Public Health. He was a post-doctoral fellow in a National Cancer Institute-funded Training Program in Cancer-Related Population Sciences under the mentorship of Alfred Neugut. He joined the faculty of the Celiac Disease Center at Columbia University in 2010. Dr. Lebwohl is a past president of the Society for the Study of Celiac Disease, and is the Director of Clinical Research at the Celiac Disease Center at Columbia University, where he collaborates with investigators in the United States and abroad in epidemiology, patterns of care, natural history, and therapeutics. Dr. Lebwohl's second and related research interest is quality of endoscopy, including improving the detection of colorectal adenomas. He has co-authored more than 350 peer-reviewed publications. His research is supported by the National Institutes of Health, and past research funding includes the American Gastroenterological Association, the Celiac Disease Foundation, and the American Scandinavian Foundation. Dr. Lebwohl served on the Gastrointestinal Drugs Advisory Committee of the United States Food and Drug Administration (2017-2025), including a term as Chair. He is heavily involved in medical education and lectures regularly to trainees on topics including celiac disease, evidence-based medicine, clinical decision making, pseudoscience, diarrhea, the Beethoven string quartets, and colorectal cancer screening.

Elliot Regenbogen, MD is an Associate Clinical Professor of Otolaryngology, Head, and Neck Surgery at Columbia University Irving Medical Center. Dr. Regenbogen received his medical degree, with distinction in research, from the Albert Einstein College of Medicine. There, he also completed his post-graduate internship in Surgery and Residency in Otolaryngology Head and Neck Surgery. His training included studying at Kurume University, Japan under the mentorship of Professor Minoru Hirano, a foundational figure of modern laryngology concepts including those related to vocal fold form and function. In addition to gaining a global perspective on healthcare delivery, the experience ignited an interest in voice, which became a focus during his residency. At the Ames Vocal Dynamics Laboratory of Lenox Hill Hospital, Dr. Regenbogen performed research and clinical evaluations of voice patients with acoustic analysis as well as stroboscopic imaging of the larynx. The work was done under the mentorship of Dr. Stanley Blaugrund and Dr. Wilbur James Gould, a giant in the care of the professional voice and founder of the Voice Foundation. After his residency, Dr. Regenbogen established his private practice in General Otolaryngology in Mount Kisco, New York. The following seventeen years included leadership as Chief of Otolaryngology at Northern Westchester Hospital from 2001 to 2009. A unique appreciation of the challenges presented to the community, a physician’s ability to provide quality care to patients and their families while incorporating the demands of an evolving health care landscape sparked an inspiration to contribute towards effective change on a broader level. Embarking on a new career path as a full-time academic physician, Dr. Regenbogen joined the Division of Otolaryngology of the State University of New York at Stony Brook in 2009. Over the following nine years his accomplishments included the establishment of a dedicated laryngology clinic, the formation of a multidisciplinary motility center for swallowing disorders, research in laryngopharyngeal reflux, the creation of an emergency airway simulation training program and contributions to the founding of an ACGME accredited Otolaryngology residency training program at Stony Brook. He has been a member of the American Academy of Otolaryngology Head and Neck Surgery since 1991 and the American Academy of Geriatric Otolaryngology since 2010. Committed to the development of effective evidenced based medical practice, he has participated in the Cochrane Scholars Program in 2010 and was a recipient of the Guidelines International Network (G-I-N) Conference AAOHNSF Scholar Grant in 2015. In addition to training residents, he provided mentorship to medical students undertaking a competitively selected four-year research project, the Scholarly Concentration Program of Stony Brook University School of Medicine. Dr. Regenbogen has recently joined the ColumbiaDoctors Otolaryngology faculty practice at CUIMC in 2018, bringing 27 years of experience in General Otolaryngology. He provides both medical and surgical treatment of a broad range of conditions affecting adults and children including basic and complex diseases of the airway, sinuses, as well as the head and neck. Emphasizing a patient-centered approach, his practice will provide medical and surgical treatment for a wide range of adult and pediatric issues. Dr. Regenbogen is available at either of two clinical locations: ColumbiaDoctors Riverdale, Bronx or the main Columbia University Irving Medical Center campus.

Morgan Busko, MD is a sports medicine physician specializing in the non-operative treatment of chronic and acute musculoskeletal injuries and conditions in adult and pediatric patients. She has a particular interest in endurance athletes, running and overuse injuries, and injury prevention. After completing a residency in Internal Medicine at New York University, where she also received her Medical Degree, Dr. Anderson completed a Sports Medicine Fellowship at Wake Forest University. She received her B.S. in Biological Anthropology and Anatomy at Duke University, where she competed in Cross-Country and Track & Field. Dr. Busko is an active endurance athlete who has competed in the Hawaii Ironman World Championship five times, finishing amongst the top triathletes in the world. She finds great reward in helping athletes return to sport safely while facilitating an athlete’s ability to reach their optimal athletic performance. She hopes that her passion for exercise as medicine will be contagious to her patients and everyone around her.