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Clinical Staff

Dr. Randy Longman

Randy Longman, M.D., Ph.D.

Dr. Longman is the Director of the Jill Roberts Center for Inflammatory Bowel Disease at Weill Cornell Medicine.  He is a gastroenterologist and a mucosal immunologist focused on the care of patients with IBD.  He has expertise in evaluating and treating patients with extra-intestinal manifestations of IBD with a particular focus on joint inflammation or spondyloarthritis associated with IBD.  His research focuses on defining the cellular and molecular mechanisms underlying host-microbiota interactions that drive the pathogenesis of both mucosal and systemic inflammation in IBD.  In addition, he leads a clinical trial studying the role for fecal microbiota therapy in the treatment of ulcerative colitis.  Dr. Longman’s work has been published in leading scientific journals and he has received awards from the NIH, Crohn’s and Colitis Foundation, NY Crohn’s Foundation, Kenneth Rainin Foundation, Charina Foundation, and Irma T. Hirschl Trust for this work.

More information on Dr. Longman, including insurance plans he accepts, can be found on his Full Clinical Profile.

Dr. Ellen Scherl

Ellen Scherl, M.D.

Dr. Scherl is the founding director of the Jill Roberts Center for Inflammatory Bowel Disease (JRC), which she established at Weill Cornell Medicine/NewYork-Presbyterian Hospital in 2006. Under her direction, JRC has experienced exciting growth. Dr. Scherl, who is the Jill Roberts Professor in Clinical Medicine at Weill Cornell, is an internationally renowned expert in treating patients with ulcerative colitis and Crohn’s disease. She has been published extensively, and is a principal investigator on multiple clinical trials. As she searches for an IBD cure, Dr. Scherl’s commitment to patient care is the driving force of JRC.

More information on Dr. Scherl, including insurance plans she accepts, can be found on her Full Clinical Profile.

Dr. Vinita Jacob

Vinita Jacob, M.D.

Dr. Jacob joined JRC in July 2008. She is an Assistant Professor of Clinical Medicine and the Director of Interdisciplinary Education. She has given numerous presentations on women’s IBD issues, particularly concerning IBD-related fertility issues and the safety of IBD medications during pregnancy. Dr. Jacob is a an investigator on multiple clinical trials and an author of numerous published papers concerning IBD.

More information on Dr. Jacob, including insurance plans she accepts, can be found on her Full Clinical Profile.

Dr. Robert Burakoff

Robert Burakoff, M.D., M.P.H.

Dr. Burakoff is Professor of Medicine at Weill Cornell Medical College. An outstanding clinician and accomplished researcher, Dr. Robert Burakoff has particular expertise in inflammatory bowel disease. Dr. Burakoff's translational research seeks to identify biological markers to differentiate Crohn's disease from Ulcerative colitis, as well as determine disease severity and response to therapy. 

Dr. Burakoff previously chaired the Editorial Board of the National Scientific Advisory Cabinet of the Crohn's and Colitis foundation of America (CCFA). In 2011, the CCFA honored him as Humanitarian of the year for his care of patients with IBD. He is a founding Editor and former Co-Editor-in-Chief of Inflammatory Bowel Diseases, the first journal devoted to the study of basic and clinical science in IBD, and recently served as Editor-in-Chief of Scientific American Medicine.

For the past 14 years, Dr. Burakoff served as Clinical Chief of the Division of Gastroenterology and Director of the Center for Digestive Health at Brigham and Women's Hospital and as Professor of Medicine at Harvard Medical School. 

More information about Dr. Burakoff, including insurance plans he accepts, can be found on his Full Clinical Profile.

Dr. Meira Abramowitz

Meira Abramowitz, M.D.

Dr. Abramowitz joined JRC in July 2015 as an Assistant Professor of Medicine. She is the primary co-investigator on several projects characterizing IBD in the Afro-Caribbean population, and has presented her work at several national meetings.

More information on Dr. Abramowitz, including insurance plans she accepts, can be found on her Full Clinical Profile.

Dr. Dana Lukin

Dana Lukin, M.D.

Dr. Dana Lukin is an Associate Professor of Clinical Medicine (Pending) and the Clinical Director of Translational Research for the Jill Roberts Center. He has a focus on the clinical management of complex and treatment-refractory inflammatory bowel disease and is actively involved in the clinical trials program at the center.  His research interests include real world experience with new and emerging IBD therapies, biomarker development and validation, and clinical research in IBD. Dr. Lukin serves as the director of the advanced fellowship program in IBD. He is the co-chair of the Crohn’s and Colitis Foundation New York Chapter Medical Advisory Committee and is actively involved in IBD patient and medical educational initiatives.

More information about Dr. Lukin, including insurance plans he accepts, can be found on his Full Clinical Profile.

Dr. Robert Battat

Robert J. Battat, M.D.

Robert J. Battat, M.D. is an expert in Inflammatory Bowel Disease specializing in Crohn's Disease and Ulcerative Colitis. He is an Attending Physician at the NewYork-Presbyterian Hospital/Weill Cornell Medical Center and the Jill Roberts Center for Inflammatory Bowel Disease.

Dr. Battat obtained his medical degree and completed both his internal medicine residency training and clinical gastroenterology fellowship at McGill University in Montreal, Canada. He subsequently completed a clinical and research fellowship in Inflammatory Bowel Disease at the University of California, San Diego and at Robarts Clinical Trials under Dr. William Sandborn and Dr. Brian Feagan.

Dr. Battat is a physician-scientist with a major interest in personalized medicine in Inflammatory Bowel Disease and has extensively published scientific articles on this topic. This includes the effect of measuring medication blood levels on patient outcomes (therapeutic drug monitoring), the effects of therapies on inflammation found on colonic biopsies, and post-operative complications of Crohns disease (such as serum tests to diagnose bile acid malabsorption, and vitamin B12 deficiency).

Dr. Battat is a reviewer for over a dozen scientific journals and has lectured on Inflammatory Bowel Disease at national and international conferences.

Most importantly, Dr. Battat is a dedicated clinician who provides excellent care to achieve optimal outcomes desired by his patients. He has expertise in providing care for patients with Crohn's Disease and Ulcerative Colitis, ranging from those who are early in their disease to those who have been on multiple therapies or have had multiple surgeries.

Ryan Warren, M.S., R.D.N, C.D.N.

Ryan Warren, M.S., R.D.N, C.D.N.

The Jill Roberts Center for Inflammatory Bowel Disease (JRC) recognizes that nutrition plays an important role in maintaining a healthy gastrointestinal tract.

We are proud to work with Registered Dietitian Nutritionist, Ryan Warren, M.S., R.D.N, C.D.N. Ryan specializes in providing evidence- and practice-based nutrition education and counseling for patients with a variety of complex gastrointestinal conditions, including Crohn’s disease, ulcerative colitis, irritable bowel syndrome (IBS), small intestinal bacterial overgrowth (SIBO), diverticulosis, diverticulitis, constipation, diarrhea, and gastroesophageal reflux (GERD). Aside from her work in clinical care, she is also actively involved in nutrition-focused clinical research at Weill Cornell and serves as a preceptor and mentor for graduate-level nutrition students in training.

Ryan holds a Master of Science degree in Clinical Nutrition and Dietetics from New York University, and a Bachelor of Arts degree in Human Biology from Brown University, where she graduated magna cum laude. She is a graduate of the NYU Dietetic Internship and completed her clinical training at NYU Langone. Ryan is also an active member of the Academy of Nutrition and Dietetics. Additionally, she routinely provides educational talks at local IBD support groups in Manhattan and contributes frequently to various health- and nutrition-focused publications, websites and newsletters.

Patients who have seen a JRC physician within the past year can schedule a nutrition appointment. To schedule an appointment with Ryan, call (212) 746-5077.

Paris Charilaou, M.D.

Paris Charilaou, M.D., IBD Fellow

Dr. Charilaou is the Advanced IBD Fellow at the Jill Roberts Center for Inflammatory Bowel Disease at Weill Cornell Medicine. He received his MD at the First Faculty of Medicine of Charles University in Prague, Czechia. He then spent two years as a post-doctoral clinical researcher at Yale University and completed his post-graduate training with a residency in Internal Medicine and a Gastroenterology & Hepatology Fellowship at Rutgers/Saint Peter’s University Hospital in New Brunswick, New Jersey, under the mentorship of Dr C.S. Pitchumoni. He received his Postgraduate Diploma with Distinction from Emeritus/Columbia Executive Education in Machine Learning and Artificial Intelligence.His main aim is to provide innovative, comprehensive and compassionate care to his IBD patients. Dr. Charilaou’s research interest is in precision medicine in IBD and developing clinical prediction tools, that are based on big-data and artificial intelligence/machine-learning methodologies.

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(212) 746-5077

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Jill Roberts Center for Inflammatory Bowel Disease
NewYork-Presbyterian Hospital
Weill Cornell Medical Center
1283 York Avenue
9th Floor
New York, NY 10065