Sandip Kapur is a Transplant Surgeon and a General Surgeon in New York, New York. Dr. Kapur is highly rated in 6 conditions, according to our data. His top areas of expertise are End-Stage Renal Disease (ESRD), Chronic Antibody-Mediated Rejection, Polycystic Kidney Disease, Kidney Transplant, and Nephrectomy.

Robert Montgomery is a Transplant Surgeon and a General Surgeon in New York, New York. Dr. Montgomery is highly rated in 2 conditions, according to our data. His top areas of expertise are End-Stage Renal Disease (ESRD), Hepatitis, Chronic Antibody-Mediated Rejection, Kidney Transplant, and Simultaneous Pancreas Kidney Transplant.

Dr. Gene Im is a transplant hepatologist and the Director of the Alcohol-associated Liver Disease Program at Columbia known as ADAPT (Advanced inter-Disciplinary Alcohol liver Program and Treatment), a patient-centered, integrated care and research program for patients with alcohol-associated liver disease (ALD). ADAPT is one of only a few integrated ALD clinics in the country.Dr. Im is an internationally recognized expert in ALD, including alcohol-associated hepatitis and liver transplantation based on his clinical focus and research achievements. He has co-authored several practice-changing articles, including the 2019 ALD Practice Guidance from AASLD, the 2024 MetALD Expert Position Statement, and the first experience of early liver transplantation for alcohol-associated hepatitis in North America.Currently, he is the Vice-Chair of the AASLD ALD Special Interest Group and serves on the Editorial Board for the journal Liver Transplantation. Dr. Im is also the founder of ALD-ALLY (Alcohol-associated Liver Disease patients deserve ALcohol LiteracY), an annual conference focused on actionable initiatives for advancing the science and care of patients with alcohol use disorder and ALD (www.ald-ally.com)Dr. Im is an Assistant Professor of Medicine in the Center for Liver Disease and Transplantation and Division of Digestive and Liver Diseases at Columbia University. Dr. Im is highly rated in 21 conditions, according to our data. His top areas of expertise are Hepatitis, Alcoholic Cirrhosis, Liver Failure, Liver Transplant, and Hepato-Pancreato-Biliary Surgery.

Dr. Mapara is Professor of Medicine at Columbia University Medical Center and the Director of the Blood and Marrow Transplantation (BMT)/Cell Therapy Program at New York Presbyterian Hospital/Columbia University Medical Center. Dr. Mapara graduated from the University of Heidelberg Medical School/Germany, and received his post-graduate training in Internal Medicine and Hematology/Oncology at the Universities of Heidelberg and the University Medical Center Charite of the Humboldt University of Berlin in Germany. In addition, he completed a research fellowship at the Transplantation Biology Research Center of the Massachusetts General Hospital at the Harvard Medical School in Boston. As Assistant Professor of Medicine, he headed the Hematologic Intensive Care Unit and served as deputy director of the Stem Cell Transplantation unit at the University Medical Center Charite in Berlin, Germany. Before coming to Columbia, Dr. Mapara was Associate Professor of Medicine (with tenure) at the University of Pittsburgh Cancer Institute and served as the Director of the Adult Hematopoietic Stem Cell Transplantation Program. Dr. Mapara specializes in the care of patients with sickle cell disease and certain blood cancers (Multiple Myeloma, Amyloidosis) undergoing bone marrow transplantation and gene therapy.  His research is focused on developing novel approaches to make bone marrow transplantation and cell therapy safer for patients. Dr. Mapara is highly rated in 10 conditions, according to our data. His top areas of expertise are Sickle Cell Disease, Congenital Hemolytic Anemia, Hemoglobinopathy, Bone Marrow Transplant, and Bone Marrow Aspiration.

Jean Emond is a General Surgeon and a Pediatric Surgeon in New York, New York. Dr. Emond is highly rated in 10 conditions, according to our data. His top areas of expertise are Liver Cancer, Liver Failure, Pancreatic Cancer, Liver Transplant, and Hepatectomy. Dr. Emond is currently accepting new patients.

Tomoaki Kato, MD, is a noted pioneer in multiple-organ transplantation, pediatric and adult liver transplantation. Dr. Kato is Vice Chair for Transplantation at NewYork-Presbyterian/Columbia University Irving Medical Center and is a professor of surgery at Columbia University Vagelos College of Physicians and Surgeons.Dr. Kato is known for unique and innovative surgeries for adults and children, including a six-organ transplant; a procedure called APOLT (auxiliary partial orthotopic liver transplantation) that resuscitates a failing liver by attaching a partial donor liver, making immunosuppressant drugs unnecessary and the first successful human partial bladder transplantation involving the transplant of two kidneys together with ureters connected to a patch of the donor bladder. In a highly publicized case, he led the first reported removal and re-implantation, or auto-transplantation, of six organs to excise a hard-to-reach abdominal tumor.Previously the director of pediatric liver and gastrointestinal transplant and professor of clinical surgery at the University of Miami School of Medicine, Dr. Kato received his medical degree from the Osaka University Medical School in Japan and received his residency training in surgery at Osaka University Hospital and Itami City Hospital in Hyogo, Japan. He completed a clinical fellowship in transplantation at the University of Miami/Jackson Memorial Hospital, in Miami, Florida, where he was subsequently appointed to the surgical faculty in 1997, and promoted to full professor in 2007. He served as a surgeon and senior leader of the liver and transplantation center at Miami's Jackson Memorial Hospital, beginning in 1997, and at University of Miami Hospital (previously Cedars Medical Center), beginning in 2004. Dr. Kato is a member of numerous professional and honorary organizations, and the author or co-author of more than 180 scientific papers in peer-reviewed journals.ResourcesFor more information, visit the Center for Liver Disease and TransplantationIf you need assistance in Chinese (Mandarin & Cantonese), please call 646-317-6325 or, visit the Columbia Liver Asian Outreach Office (English | Mandarin. Dr. Kato is highly rated in 9 conditions, according to our data. His top areas of expertise are Fibrolamellar Carcinoma, Liver Failure, Liver Cancer, Liver Transplant, and Hepatectomy.

Dr. Ratner is Professor of Surgery and Director of Renal and Pancreatic Transplantation at Columbia University. Prior to joining the faculty at Columbia, Dr. Ratner was on the faculty of Johns Hopkins University in Baltimore, and served as the Chief of Solid Organ Transplantation at Thomas Jefferson University in Philadelphia. Dr. Ratner was responsible for dramatic growth of the kidney transplant program at CUIMC. He also established the pancreas transplant program, and the Kidney Autotransplant Program. He introduced robotic surgery to our kidney transplant program. Access to organ transplantation has been Dr. Ratner's major academic interest. Dr. Ratner has been a leading innovator in transplantation for over two decades. In 1993, he performed the world's first dual renal transplant. In 1995 (with Dr. Louis Kavoussi) he performed the first laparoscopic donor nephrectomy, and set the stage for its widespread adoption, which resulted in a profound increase in living donor kidney transplantation. Dr. Ratner has made significant contributions in overcoming immunologic incompatibilities that prohibited transplantation. He devised the plasmapheresis/IVIg protocol for alloantibody desensitization in 1998. In 2001, Dr. Ratner orchestrated the second paired-kidney exchange in the U.S. Subsequently, he arranged the first paired kidney exchanges in both Pennsylvania and New York. More recently Dr. Ratner has been a leading proponent of including compatible donor/recipient pairs in kidney exchanges. And, his more contemporary work has looked at the organizational and regulatory barriers to access to care. All of these strategies have increased organ availability and access to transplantation. Additionally, he has made important contributions to improve living donor safety. For his work, Dr. Ratner has received numerous awards and honors. And, he has been invited to speak and operate at various venues around the world. Dr. Ratner has authored or co-authored over 240 peer-reviewed publications, and has been a federally funded investigator. His publications have been cited over 20,000 times. He served as the Chairman of the Board of Directors of the LiveOnNY (formerly the New York Organ Donor Network), and has served on numerous national committees including the Board of the Organ Procurement and Transplantation Network (OPTN). He recently completed a term as the President of the American Society of Transplant Surgeons, and previously served as that Society's Treasurer.Dr. Ratner originally hails from Brooklyn, NY. He received his undergraduate education at the State University of New York at Buffalo. He received his M.D. from Hahnemann University. His general surgery training was obtained at Long Island Jewish Medical Center. He completed a Fellowship in Transplantation Surgery and Immunology at Washington University. In 2011 Dr. Ratner completed a Master of Public Health with a focus on health care policy, administration and management. Dr. Ratner is highly rated in 6 conditions, according to our data. His top areas of expertise are Chronic Antibody-Mediated Rejection, End-Stage Renal Disease (ESRD), Chylous Ascites, Kidney Transplant, and Pancreas Transplant.

Sander Florman is a General Surgeon and a Transplant Surgeon in New York, New York. Dr. Florman is highly rated in 15 conditions, according to our data. His top areas of expertise are Hepatitis, Liver Cancer, Liver Failure, Liver Transplant, and Kidney Transplant.

Bernard Kim is a Transplant Surgeon in Hackensack, New Jersey. Dr. Kim is highly rated in 12 conditions, according to our data. His top areas of expertise are Pulmonary Edema, Heart Failure, Arrhythmias, Heart Failure with Preserved Ejection Fraction (HFpEF), and Hemorrhoidectomy.

Ran Reshef is a Transplant Surgeon in New York, New York. Dr. Reshef is highly rated in 8 conditions, according to our data. His top areas of expertise are Graft Versus Host Disease (GvHD), Multiple Myeloma, Non-Hodgkin Lymphoma, Bone Marrow Transplant, and Bone Marrow Aspiration. Dr. Reshef is currently accepting new patients.

Kishore Iyer is a Transplant Surgeon and a General Surgeon in New York, New York. Dr. Iyer is highly rated in 5 conditions, according to our data. His top areas of expertise are Short Bowel Syndrome, Malnutrition, Gastrointestinal Fistula, Ileostomy, and Liver Transplant.

Bruce Gelb is a Transplant Surgeon and a General Surgeon in New York, New York. Dr. Gelb is highly rated in 5 conditions, according to our data. His top areas of expertise are End-Stage Renal Disease (ESRD), Chronic Antibody-Mediated Rejection, Hepatitis, Kidney Transplant, and Simultaneous Pancreas Kidney Transplant.

Michael Goldstein is a Transplant Surgeon in Hackensack, New Jersey. Dr. Goldstein is highly rated in 4 conditions, according to our data. His top areas of expertise are End-Stage Renal Disease (ESRD), Chronic Antibody-Mediated Rejection, Esophagitis, Kidney Transplant, and Simultaneous Pancreas Kidney Transplant.

David Serur is a Transplant Surgeon in Hackensack, New Jersey. Dr. Serur is highly rated in 4 conditions, according to our data. His top areas of expertise are Chronic Kidney Disease, End-Stage Renal Disease (ESRD), Glomerulonephritis, Kidney Transplant, and Nephrectomy.

Joshua Sonett is a Thoracic Surgeon and a Transplant Surgeon in New York, New York. Dr. Sonett is highly rated in 20 conditions, according to our data. His top areas of expertise are Lung Cancer, Lung Adenocarcinoma, Non-Small Cell Lung Cancer (NSCLC), Thymectomy, and Endoscopy. Dr. Sonett is currently accepting new patients.

Patrick Northup is a Hepatologist and a Transplant Surgeon in New York, New York. Dr. Northup is highly rated in 19 conditions, according to our data. His top areas of expertise are Liver Failure, Ascites, Nonalcoholic Steatohepatitis (NASH), Liver Transplant, and Endoscopy. Dr. Northup is currently accepting new patients.

Kristina R. Chacko, MD, is an Associate Professor of Medicine at the Albert Einstein College of Medicine in Bronx, NY.  She joined the Einstein-Montefiore Liver Center in 2013 after completing a fellowship in Transplant Hepatology at Mount Sinai School of Medicine in New York, NY.  She received her bachelor of arts in philosophy at Boston College and attended medical school at Baylor College of Medicine in Houston, TX.  She completed her internal medicine residency at Emory University in Atlanta, GA, and gastroenterology fellowship at New York University.  Her clinical and research interests include the diagnosis and management of alcoholic hepatitis, non-alcoholic fatty liver disease, autoimmune liver diseases, and liver transplantation.  As the program director of the ACGME-accredited transplant hepatology fellowship at Montefiore Medical Center, she is directly involved in the development and execution of the hepatology curriculum for gastroenterology and hepatology fellows. Dr. Chacko is highly rated in 18 conditions, according to our data. Her top areas of expertise are Hepatitis, Hepatitis A, Visceromegaly, Autoimmune Hepatitis, and Liver Transplant.

John F. Reinus, MD, is Emeritus Medical Director, Liver Transplantation and Professor, Medicine at Montefiore Einstein. His work centers on liver transplantation, end-stage liver disease and viral hepatitis. Dr. Reinus is highly rated in 11 conditions, according to our data. His top areas of expertise are Hepatitis, Autoimmune Hepatitis, Hepatitis C, Visceromegaly, and Liver Transplant.

Julia Wattacheril, MD, MPH is an associate professor of medicine, physician scientist, inventor and director of the Metabolic Dysfunction Associated Steatotic Liver Disease (MASLD) program at Columbia University Irving Medical Center. Her clinical and translational work spans the multidisciplinary care of MASLD patients at all stages of their disease to the investigation of rare genetic variants influencing the development and progression of MASLD before and after liver transplantation. She currently leads an interdisciplinary research group using machine learning to identify at-risk and protected phenotypes within the electronic health record (EHR) for multi-omic analysis. Of particular interest for clinical outcomes discovered through EHR phenotyping include rapid progression to advanced liver disease, need for transplantation and hepatocellular carcinoma. Awards include the Department of Surgery Innovation Award and Columbia Department of Biomedical Engineering Ignition Award for these software applications as they move into medicine.Wattacheril is the lead principal investigator for several clinical trials in MASH. Her early pilot work with proteomics and lipidomics in the development of metabolic dysfunction associated steatohepatitis (MASH) led to her current efforts investigating multi-omic signatures associated with fibrotic MASH. She co-led a multicenter consortium investigating the clinical risks associated with the development of hepatocellular carcinoma in patients with all etiologies of chronic liver disease, with a particular local focus on diverse populations. At Columbia, she works closely with the Center for Precision Medicine and Genomics to integrate genomics into clinical care. She mentors across disciplines including computational geneticists to masters’ program students in nutrition to undergraduates in psychology. She has a commitment to community education, including faith-based and non-profit sectors. Dr. Wattacheril is highly rated in 9 conditions, according to our data. Her top areas of expertise are Non-Alcoholic Fatty Liver Disease, Visceromegaly, Enlarged Liver, Liver Transplant, and Endoscopy.

Jason Hawksworth, MD is a noted pioneer in minimally invasive robotic hepatobiliary and transplant surgery. Dr. Hawksworth is the Surgical Director of Adult Liver Transplantation, Chief of Hepatobiliary Surgery, and the Director of Robotic Liver Surgery Program in the Division of Abdominal Organ Transplant and Hepatobiliary Surgery at New York Presbyterian Hospital/Columbia University Irving Medical Center and is an Associate Professor at Columbia University College of Physicians and Surgeons.Dr. Hawksworth is known for unique and innovative minimally invasive robotic surgeries to remove tumors of the liver, bile duct and pancreas, including robotic major hepatectomy, robotic pancreatectomy, and robotic Whipple. He also specializes in robotic transplantation including robotic kidney transplantation, robotic living donor nephrectomy and robotic living donor hepatectomy.Dr. Hawksworth received his undergraduate degree from The United States Military Academy at West point and his medical degree from Wake Forest University Bowman Gray School of Medicine. Dr. Hawksworth completed general surgery residency at Walter Reed Army Medical Center followed by an abdominal transplant and hepatobiliary surgery fellowship at Georgetown University Hospital.Previously the Chief of Robotic Surgery at Georgetown University Hospital, Dr. Hawksworth established one of the nation’s premier robotic hepatobiliary and transplant programs in 2018 at Georgetown. He was recruited to Columbia University Irving Medical Center in 2023 to lead the liver transplant and hepatobiliary programs and continue to develop innovative techniques in robotic surgery.Dr. Hawksworth is a member of several key organizations including a Fellow of the American College of Surgeons, American Society of Transplant Surgeons, International Laparoscopic Liver Society, and Americas Hepato-Pancreato-Biliary Association. His research interests include clinical transplant and hepatobiliary trials, and he has published over 60 scientific manuscripts and book chapters in leading journals such as Annals of Surgery, Journal of Gastrointestinal Surgery, American Journal of Transplantation and Transplantation.Dr. Hawksworth is a Colonel in the Army reserves and has deployed four times to support combat operations in Afghanistan and the Middle East.Visit The Center for Liver Disease and Transplantation at columbiasurgery.org/liver. Dr. Hawksworth is highly rated in 7 conditions, according to our data. His top areas of expertise are Bile Duct Cysts, Pancreatic Cancer, Short Bowel Syndrome, Hepatectomy, and Liver Transplant.

Dr. Avesh J. Thuluvath is a transplant hepatologist and physician-scientist with expertise in caring for patients with liver disease. Dr. Thuluvath specializes in the diagnosis and treatment of viral hepatitis, metabolic dysfunction-associated steatotic liver disease, alcohol-associated liver disease and autoimmune liver diseases. He has additional expertise in the care of patients before and after liver transplantation. Dr. Thuluvath's clinical practice is centered on delivering high quality, personalized and patient-centered care for those with liver disease.Prior to joining the faculty at Columbia University Medical Center, Dr. Thuluvath completed his Gastroenterology and Transplant Hepatology training at Northwestern University Feinberg School of Medicine. His additional research training includes an NIH post-doctoral fellowship in liver transplant outcomes research and a Masters in Clinical Investigation.Dr. Thuluvath's research focuses on further elucidating the pathophysiology of frailty and sarcopenia in cirrhosis, with the ultimate goal of developing patient-centered interventions to optimize physical conditioning before liver transplantation. Dr. Thuluvath is highly rated in 3 conditions, according to our data. His top areas of expertise are Liver Failure, Cirrhosis, Cholangitis, Liver Transplant, and Endoscopy.

David Silber is a Transplant Surgeon in Hackensack, New Jersey. Dr. Silber is highly rated in 2 conditions, according to our data. His top areas of expertise are Pulmonary Edema, Heart Failure, Cardiomyopathy, and Aortic Regurgitation.

Danielle Brandman is a Transplant Surgeon in New York, New York. Dr. Brandman is highly rated in 20 conditions, according to our data. Her top areas of expertise are Nonalcoholic Steatohepatitis (NASH), Non-Alcoholic Fatty Liver Disease, Hepatitis, Liver Transplant, and Endoscopy. Dr. Brandman is currently accepting new patients.

Arun Jesudian is a Transplant Surgeon in New York, New York. Dr. Jesudian is highly rated in 16 conditions, according to our data. His top areas of expertise are Spontaneous Bacterial Peritonitis, Ascites, Liver Failure, Liver Transplant, and Endoscopy. Dr. Jesudian is currently accepting new patients.

Alex Reyentovich is a Cardiologist and a Transplant Surgeon in New York, New York. Dr. Reyentovich is highly rated in 12 conditions, according to our data. His top areas of expertise are Cardiac Amyloidosis, Heart Failure, Primary Localized Cutaneous Amyloidosis, Heart Transplant, and Cardiac Ablation. Dr. Reyentovich is currently accepting new patients.