Dr. Wikrom Karnsakul is an associate professor of pediatrics at the Johns Hopkins University School of Medicine. His clinical interests are in the care of pediatric liver diseases, and general gastrointestinal diseases. Dr. Karnsakul received his medical degree in 1992 from Faculty of Medicine, Siriraj Medical Center, Mahidol University School of Medicine in Bangkok, Thailand. He completed his residency in pediatrics at Advocate Hope Children's Hospital in 1998 and did a fellowship in pediatric gastroenterology, hepatology and nutrition at Texas Children's Hospital, Baylor College of Medicine in Houston, Texas. He completed his postdoctoral research training at USDA/ARS Children's Nutrition Research Center, Baylor College of Medicine. He joined the faculty at Johns Hopkins in 2008. His research interests center on the understanding and treatment of chronic liver disease, ascites, cholestasis, viral hepatitis especially hepatitis C and hepatitis E, and Cystic Fibrosis Related Liver Disease. Dr. Karnsakul is also involved in NIH-funded multicenter research studies including the Cholestatic Liver Disease Consortium and Cystic Fibrosis Related Liver Disease Project. Dr. Karnsakul is currently a Fellow of the American Association for the Study of Liver Diseases (FAASLD). Dr. Karnsakul is rated as an Advanced provider by MediFind in the treatment of Portal Hypertension. His top areas of expertise are Alagille Syndrome, Cholestasis, Hepatitis E, Liver Transplant, and Endoscopy.

Gastroenterologist Mouen Khashab specializes in therapeutic endoscopy, and he oversees this group of practitioners across the Johns Hopkins enterprise. Nationally and internationally known in the field of interventional endoscopy, Dr. Khashab has contributed immensely to the field’s advancement as a minimally invasive means to treat gastrointestinal and pancreaticobiliary disorders. Dr. Khashab earned his medical degree from the American University of Beirut Faculty of Medicine, and subsequently completed a residency in internal medicine and a fellowship in gastroenterology at Indiana University. He then completed a two-year fellowship at The Johns Hopkins Hospital before joining the faculty in 2011. A busy researcher, Dr. Khashab has published more than 600 papers in peer-reviewed journals. In 2013, he described the procedure called gastric peroral endoscopic myotomy (known as G-POEM) and was able to disseminate and teach it all over the world. Other procedures that he expanded include peroral endoscopic myotomy (POEM), peroral endoscopic myotomy with fundoplication (POEM-F), Zenker’s peroral endoscopic myotomy (Z-POEM) and full thickness resection. In 2022, he received the Master Endoscopist Award from the American Society for Gastrointestinal Endoscopy (ASGE) for his numerous contributions to the field. His procedural expertise includes endoscopic retrograde cholangiopancreatography (ERCP), endoscopic ultrasound (EUS), interventional EUS, submucosal endoscopy, POEM/achalasia, endoscopic mucosal resection, endoscopic submucosal dissection, luminal stenting, large polyp resection and Barrett’s therapy, among others. Dr. Khashab is involved with multiple gastrointestinal societies and has served on many committees, including the ASGE Standards of Practice Committee, which is in charge of formulating guidelines for the practice of endoscopy. He has also served as an associate editor for the journal Endoscopy, a premier journal in the field. Khashab is a highly sought-after speaker at national and international conferences, and he has participated in multiple live endoscopy conferences. Outside of academic medicine, Dr. Khashab is an entrepreneur. His major interest is in new technology and medical devices, and his goal is to disrupt the field by introducing technology that makes endoscopic procedures safer, easier, efficient and more scalable. Dr. Khashab is rated as an Advanced provider by MediFind in the treatment of Portal Hypertension. His top areas of expertise are Achalasia, Pancreatic Pseudocyst, Bile Duct Obstruction, Endoscopy, and Gastric Bypass.

Gastroenterologist Saowanee Ngamruengphong specializes in the endoscopic diagnosis and management of gastrointestinal malignancies, premalignant and malignant lesions in the gastrointestinal tract (e.g., early gastric cancer, Barrett's esophagus-associated neoplasia), esophageal cancer, colon polyps or early colorectal cancer, and pancreatic and biliary disease. Dr. Ngamruengphong earned a medical degree from Chulalongkorn University and completed residency training at the Texas Tech University Health Sciences Center. She undertook fellowship training in gastroenterology at the Mayo School of Graduate Medical Education and further fellowship training in therapeutic endoscopy at The Johns Hopkins Hospital. Her research interests include endoscopic resection and the management of precancerous or cancerous gastrointestinal lesions. Dr. Ngamruengphong is a member of several professional organizations, including the Thai Medical Council, the American College of Gastroenterology and the American Gastroenterological Association. Videos Endoscopic Submucosal Dissection (ESD) — Eileen’s Story Recent News Articles and Media Coverage A Rare, Stomach-Saving Endoscopic Procedure, Inside Tract (Spring 2021) Case Presentation: ESD-TAMIS, Inside Tract (Spring 2019) Innovative Approaches to Colorectal Surgery Benefit Patients, Surgery (Winter 2019) For Colorectal Polyps: Early Detection and Minimally Invasive Endoscopic Resection, Inside Tract (Winter, 2019) The Cutting Edge of Endoscopic Resection, Inside Tract (Spring, 2017) Stomach Cancer: Know Your Risks & Treatment Options, Johns Hopkins Surgery (4/26/2017). Dr. Ngamruengphong is rated as an Advanced provider by MediFind in the treatment of Portal Hypertension. Her top areas of expertise are Achalasia, Pancreatic Pseudocyst, Stomach Cancer, Endoscopy, and Gastric Bypass.

Dr. Gurakar joined Johns Hopkins from the Nazih Zuhdi Transplantation Institute at the Integris Baptist Medical Center in Oklahoma City, where he was the chief of Hepatology Research and the program director of the Liver Transplantation Medicine/ Hepatology Fellowship. He served at various capacities in the Liver Medicine Section, since its first establishment in 1993. Dr. Gurakar's clinical interests include pre and post-transplant, clinical and endoscopic management of liver diseases and viral hepatitis. His research interests include bioartificial liver dialysis systems and application of total plasma exchange in the treatment of liver disorders. Dr. Gurakar is rated as an Experienced provider by MediFind in the treatment of Portal Hypertension. His top areas of expertise are Hepatitis, Liver Failure, Alcoholic Cirrhosis, Liver Transplant, and Kidney Transplant.

John Affronti is a Gastroenterologist in Baltimore, Maryland. Dr. Affronti is rated as an Experienced provider by MediFind in the treatment of Portal Hypertension. His top areas of expertise are Childhood Volvulus, Portal Hypertension, Indigestion, Endoscopy, and Gastrectomy.

Kendra Jobe is a primary care provider, practicing in Internal Medicine in Baltimore, Maryland. Dr. Jobe is rated as an Experienced provider by MediFind in the treatment of Portal Hypertension. Her top areas of expertise are Urticaria Pigmentosa, Esophageal Varices, Gastrointestinal Bleeding, and Avian Influenza.

Hepatologist Merve Gurakar specializes in liver disease, and treats patients who have portal hypertension. Dr. Gurakar earned her medical degree from Virginia Commonwealth University School of Medicine and completed internal medicine residency training at the Johns Hopkins University School of Medicine. She remained at Johns Hopkins for fellowship training in gastroenterology and transplant hepatology. Her research interests include portal hypertension, endo-hepatology and global health. Dr. Gurakar is rated as an Experienced provider by MediFind in the treatment of Portal Hypertension. Her top areas of expertise are Acute Pancreatitis, Hereditary Pancreatitis, Pancreas Divisum, Liver Transplant, and Aneurysm Repair.

Anita Sivaraman is a Gastroenterologist in Baltimore, Maryland. Dr. Sivaraman is rated as an Experienced provider by MediFind in the treatment of Portal Hypertension. Her top areas of expertise are Gastrointestinal Bleeding, Colitis, Viral Gastroenteritis, Colonoscopy, and Endoscopy. Dr. Sivaraman is currently accepting new patients.

Allen Banegura is a Gastroenterologist in Catonsville, Maryland. Dr. Banegura is rated as an Advanced provider by MediFind in the treatment of Portal Hypertension. His top areas of expertise are Familial Adenomatous Polyposis, Angiodysplasia of the Colon, Esophagitis, Gastrectomy, and Colonoscopy.

Thomas Abernathy is a Gastroenterologist in Catonsville, Maryland. Dr. Abernathy is rated as an Advanced provider by MediFind in the treatment of Portal Hypertension. His top areas of expertise are Lactose Intolerance, Familial Adenomatous Polyposis, Hemorrhoids, Gastrectomy, and Colonoscopy.

Agazi Gebreselassie is a Gastroenterologist and a Hospital Medicine provider in Baltimore, Maryland. Dr. Gebreselassie is rated as an Advanced provider by MediFind in the treatment of Portal Hypertension. His top areas of expertise are Jaundice, Macroamylasemia, Portal Hypertension, Endoscopy, and Colonoscopy.

Dr. Onwueme graduated with Distinction from Yale University with dual BSc/MSc degrees in chemistry and received MD and PhD degrees from Weill Cornell Medical College. He completed his Internal Medicine residency at Brigham and Women’s Hospital (Clinical Fellow Harvard Medical School) and his Gastroenterology fellowship at Johns Hopkins University School of Medicine. He is currently the Director of clinical trials at Woodholme Gastroenterology and has an ardent interest in the role of microbial metabolites in gut diseases. Dr. Onwueme prizes commitment to quality and compassionate patient care to which he devotes his practice. He has expert knowledge in gut microbiology and a special interest in diarrheal diseases, disordered gut motility, autoimmune and inflammatory bowel disease. Dr. Onwueme is rated as an Advanced provider by MediFind in the treatment of Portal Hypertension. His top areas of expertise are Gastric Dysmotility, Diverticular Disease, Diarrhea, Endoscopy, and Gastrectomy.

Steven Epstein is a Gastroenterologist in Baltimore, Maryland. Dr. Epstein is rated as an Advanced provider by MediFind in the treatment of Portal Hypertension. His top areas of expertise are Familial Adenomatous Polyposis, Attenuated Familial Adenomatous Polyposis, Cronkhite-Canada Disease, Gastrectomy, and Colonoscopy.

April Tignor is a Gastroenterologist in Glen Burnie, Maryland. Dr. Tignor is rated as an Advanced provider by MediFind in the treatment of Portal Hypertension. Her top areas of expertise are Hemorrhoids, Indigestion, Gastritis, Endoscopy, and Gastrectomy.

Loc Le is a Gastroenterologist in Baltimore, Maryland. Dr. Le is rated as an Advanced provider by MediFind in the treatment of Portal Hypertension. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Irritable Bowel Syndrome (IBS), Barrett Esophagus, Colonoscopy, and Endoscopy.

Natarajan Ravendhran is a hepatologist specializing in the diagnosis, treatment and management of liver diseases. He received his medical degree from Stanley Medical College, University of Madras in India, completed his residency in internal medicine at what is now Ascension Saint Agnes Hospital in Maryland and a residency in surgery at Railway Hospital in Madras, India. Dr. Ravendhran performed fellowship training in hepatology under the mentorship of Eugene and Leon Schiff at the University of Miami. Additionally, he received fellowship training in gastroenterology and liver disease at the University of Missouri. Dr. Ravendhran received a master’s degree in business administration in medical services management from The Johns Hopkins University. He is a fellow of the American Association for the Study of Liver Diseases and the American Gastroenterological Association, and is a member of the European Association for the Study of the Liver. Dr. Ravendhran is interested in exploring cholestatic disorders. He has participated in many clinical trials that focus on hepatitis B and C, in addition to metabolic dysfunction-associated steatotic liver disease trials. He enjoys teaching, rounding with fellows and seeing patients, and his motto is “Patients come first!”. Dr. Ravendhran is rated as a Distinguished provider by MediFind in the treatment of Portal Hypertension. His top areas of expertise are Non-Alcoholic Fatty Liver Disease, Hepatitis, Visceromegaly, Enlarged Liver, and Endoscopy.

Raymond Cross is a Gastroenterologist in Baltimore, Maryland. Dr. Cross is rated as an Experienced provider by MediFind in the treatment of Portal Hypertension. His top areas of expertise are Crohn's Disease, Ulcerative Colitis, Viral Gastroenteritis, Endoscopy, and Colonoscopy.

Sasan Sakiani is a Hepatologist in Baltimore, Maryland. Dr. Sakiani is rated as an Advanced provider by MediFind in the treatment of Portal Hypertension. His top areas of expertise are Alcoholic Cirrhosis, Visceromegaly, Hepatitis C, Liver Transplant, and Endoscopy.

Peter Darwin is a Gastroenterologist in Baltimore, Maryland. Dr. Darwin is rated as an Advanced provider by MediFind in the treatment of Portal Hypertension. His top areas of expertise are Cholestasis, Bile Duct Obstruction, Bile Duct Stricture, Endoscopy, and Pancreatectomy.

Bruce Greenwald is a Gastroenterologist in Baltimore, Maryland. Dr. Greenwald is rated as an Advanced provider by MediFind in the treatment of Portal Hypertension. His top areas of expertise are Barrett Esophagus, Esophageal Cancer, Benign Esophageal Stricture, Endoscopy, and Colonoscopy.