Dr. Lazarev joined Johns Hopkins from the Mount Sinai Medical Center in New York, where he completed the Present-Levison advanced inflammatory bowel disease fellowship. A specialist in the diagnosis and management of Crohn's disease and ulcerative colitis, Dr. Lazarev has published numerous peer-reviewed articles, abstracts and chapters. Dr. Lazarev is rated as an Elite provider by MediFind in the treatment of Viral Gastroenteritis. His top areas of expertise are Crohn's Disease, Viral Gastroenteritis, Ulcerative Colitis, Colonoscopy, and Endoscopy.

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

Geoffrey Nguyen is a Gastroenterologist in Baltimore, Maryland. Dr. Nguyen is rated as an Elite provider by MediFind in the treatment of Viral Gastroenteritis. His top areas of expertise are Viral Gastroenteritis, Ulcerative Colitis, Hemorrhagic Proctocolitis, Endoscopy, and Colonoscopy.

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

Dr. Melia specializes in inflammatory bowel disease (IBD), and her clinical expertise includes ulcerative colitis, Crohn’s disease, microscopic colitis, collageneous colitis and Celiac disease. Her primary research interest is improving approaches for individualized care for patients with IBD through functional genomic studies, particularly related to diet, host, and microbiota interactions. She has authored numerous peer-reviewed publications. Dr. Melia is rated as a Distinguished provider by MediFind in the treatment of Viral Gastroenteritis. Her top areas of expertise are Viral Gastroenteritis, Crohn's Disease, Colitis, Endoscopy, and Colonoscopy.

Jason Goldstein is a Pediatrics provider in Lutherville, Maryland. Dr. Goldstein is rated as an Advanced provider by MediFind in the treatment of Viral Gastroenteritis. His top areas of expertise are Respiratory Syncytial Virus (RSV) Infection, Croup, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), and Viral Gastroenteritis. Dr. Goldstein is currently accepting new patients.

Kristen Britton is a Pediatrics specialist and a Hospital Medicine provider in Towson, Maryland. Dr. Britton is rated as an Experienced provider by MediFind in the treatment of Viral Gastroenteritis. Her top areas of expertise are Respiratory Syncytial Virus (RSV) Infection, Cellulitis, Peptic Ulcer, and Necrosis.

David Hutcheon is a Gastroenterologist in Lutherville, Maryland. Dr. Hutcheon is rated as an Advanced provider by MediFind in the treatment of Viral Gastroenteritis. His top areas of expertise are Gastrointestinal Bleeding, Intestinal Cancer, Angiodysplasia of the Colon, Colonoscopy, and Endoscopy.

Travis Ganunis is a Pediatrics provider in Lutherville, Maryland. Dr. Ganunis is rated as an Experienced provider by MediFind in the treatment of Viral Gastroenteritis. His top areas of expertise are Respiratory Syncytial Virus (RSV) Infection, Croup, Multisystem Inflammatory Syndrome in Children (MIS-C), and Chronic Rhinosinusitis with Nasal Polyps (CRSwNP). Dr. Ganunis is currently accepting new patients.

Julie King is a Pediatrics provider in Lutherville, Maryland. Dr. King is rated as an Experienced provider by MediFind in the treatment of Viral Gastroenteritis. Her top areas of expertise are Respiratory Syncytial Virus (RSV) Infection, Croup, Multisystem Inflammatory Syndrome in Children (MIS-C), and Familial Short Stature (FSS). Dr. King is currently accepting new patients.

Jennifer Broome is a Pediatrics provider in Lutherville, Maryland. Dr. Broome is rated as an Experienced provider by MediFind in the treatment of Viral Gastroenteritis. Her top areas of expertise are Respiratory Syncytial Virus (RSV) Infection, Croup, Chromosome 13q Duplication, and Multisystem Inflammatory Syndrome in Children (MIS-C). Dr. Broome is currently accepting new patients.

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 a Distinguished provider by MediFind in the treatment of Viral Gastroenteritis. His top areas of expertise are Achalasia, Pancreatic Pseudocyst, Bile Duct Obstruction, Endoscopy, and Gastric Bypass.

Maria Oliva is a Pediatric Gastroenterologist in Baltimore, Maryland. Dr. Oliva is rated as a Distinguished provider by MediFind in the treatment of Viral Gastroenteritis. Her top areas of expertise are Viral Gastroenteritis, Crohn's Disease, Hemorrhagic Proctocolitis, Gastrostomy, and Colonoscopy.

Jamie Walters is a Gastroenterologist in Towson, Maryland. Dr. Walters is rated as an Advanced provider by MediFind in the treatment of Viral Gastroenteritis. Her top areas of expertise are Irritable Bowel Syndrome (IBS), Gastroesophageal Reflux Disease (GERD), Chronic Erosive Gastritis, Gastrectomy, and Endoscopy.

Niraj Jani is a Gastroenterologist in Baltimore, Maryland. Dr. Jani is rated as an Advanced provider by MediFind in the treatment of Viral Gastroenteritis. His top areas of expertise are Acute Pancreatitis, Gastroesophageal Reflux Disease (GERD), Choledocholithiasis, Endoscopy, and Colonoscopy.

Ariela Taub is a Pediatrics provider in Baltimore, Maryland. Dr. Taub is rated as an Advanced provider by MediFind in the treatment of Viral Gastroenteritis. Her top areas of expertise are Asthma in Children, Viral Gastroenteritis, Respiratory Syncytial Virus (RSV) Infection, and Diarrhea. Dr. Taub is currently accepting new patients.

Sudhir Dutta is a Gastroenterologist in Lutherville, Maryland. Dr. Dutta is rated as an Advanced provider by MediFind in the treatment of Viral Gastroenteritis. His top areas of expertise are Gastrointestinal Bleeding, Choledocholithiasis, Hiatal Hernia, Colonoscopy, and Gastrectomy.

Dr. Marshall Bedine is an assistant professor of medicine at the Johns Hopkins University School of Medicine. His areas of clinical expertise include gastroenterology, inflammatory bowel disease and irritable bowel syndrome. He earned his M.D. from the Boston University School of Medicine. Dr. Bedine is rated as an Experienced provider by MediFind in the treatment of Viral Gastroenteritis. His top areas of expertise are Crohn's Disease, Hemorrhoids, Attenuated Familial Adenomatous Polyposis, Colonoscopy, and Endoscopy.

Dr. Veloso joins Johns Hopkins from University Hospitals Case Medical Center, where she was the director of outpatient clinics at the University Hospitals Digestive Health Institute, Westlake. She has special interests in Celiac disease, Colon Cancer, Microscopic Colitis and Inflammatory Bowel Disease. Dr. Veloso received several commendations in her teaching role at the University Hospitals Case Medical Center, the primary affiliate of Case Western Reserve University, and was an active participant in the Filipino American community where she was a member of the board of trustees for the American Philippine Physicians of Ohio. Dr. Veloso is rated as an Experienced provider by MediFind in the treatment of Viral Gastroenteritis. Her top areas of expertise are Gas Bloat Syndrome, Chronic Idiopathic Constipation (CIC), Diarrhea, Colonoscopy, and Endoscopy.

Dr. Po-Hung (Victor) Chen is a transplant hepatology and addiction medicine physician. He is jointly appointed by the Division of Gastroenterology and Hepatology and the Division of Addiction Medicine. Dr. Chen's clinical focus is to care for patients with general or transplant-related liver conditions, including alcohol-associated liver disease (ALD), metabolic dysfunction-associated steatotic liver disease (MASLD), viral hepatitis, autoimmune liver diseases, hemochromatosis, and other diagnoses. He directed the creation of a Johns Hopkins Medicine informational webpage on ALD. He is also a frequent consultant for other Johns Hopkins clinicians regarding inquiries about ALD, including biomarker interpretation, acute hepatitis management, and addiction treatment delivery. Dr. Chen is a member of multiple professional medical and public health organizations (see below). He is a Fellow of the American College of Gastroenterology and a Fellow of the American Society of Addiction Medicine. Dr. Chen is rated as an Experienced provider by MediFind in the treatment of Viral Gastroenteritis. His top areas of expertise are Hepatitis, Hepatitis C, Alcoholic Cirrhosis, Liver Transplant, and Endoscopy.