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 Gastrointestinal Fistula. His top areas of expertise are Achalasia, Pancreatic Pseudocyst, Bile Duct Obstruction, Endoscopy, and Gastric Bypass.

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 an Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. Her top areas of expertise are Viral Gastroenteritis, Crohn's Disease, Colitis, Endoscopy, and Colonoscopy.

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 Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. His top areas of expertise are Crohn's Disease, Viral Gastroenteritis, Ulcerative Colitis, Colonoscopy, and Endoscopy.

Jose Diaz is an Intensive Care Medicine provider in Baltimore, Maryland. Dr. Diaz is rated as a Distinguished provider by MediFind in the treatment of Gastrointestinal Fistula. His top areas of expertise are Gastrointestinal Fistula, Chronic Subdural Hematoma, Delirium, Gastrostomy, and Hernia Surgery.

Joseph Dirocco is a Colorectal Surgeon in Towson, Maryland. Dr. Dirocco is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. His top areas of expertise are Encopresis, Hemorrhoids, Bowel Incontinence, Bladder Reconstruction, and Hemorrhoidectomy.

Arun Raghunath is a primary care provider, practicing in Family Medicine in Lutherville Timonium, Maryland. Dr. Raghunath is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. His top areas of expertise are Myotonia Congenita, Anemia, Rhabdomyolysis, and Stroke.

Cyrus Hamidi is a primary care provider, practicing in Family Medicine in Timonium, Maryland. Dr. Hamidi is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. His top areas of expertise are Attention Deficit Hyperactivity Disorder (ADHD), Asthma in Children, Empyema, and Asthma.

Jin He, M.D., Ph.D., is a professor of surgery at the Johns Hopkins University School of Medicine and is the Division Chief of Hepato-Pancreato-Biliary & Gastrointestinal Surgical Oncology. Dr. He specializes in diseases and tumors of the pancreas, liver, bile duct, and gallbladder. He performs open as well as minimally invasive (robotic and laparoscopic) surgery, including the Whipple procedure. Dr. He received his medical degree from Beijing Medical University and a Ph.D. in oncology from Fudan University Shanghai Medical College. He completed the Halsted general surgery residency training at Johns Hopkins, followed by an ACGME accredited fellowship in complex general surgical oncology at Johns Hopkins. Dr. He is the John Cameron Professor of Alimentary Tract Diseases. Dr. He’s research focuses on personalized treatment through stratifying pancreatic tumors on their genetic features. He holds several patents in anti-cancer vascular targeting agents and has published extensively in peer-reviewed journals and lectured internationally. He serves on several national committees, including the NCCN panel on neuroendocrine tumors and the Alliance for Clinical Trials in Oncology. Dr. He is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Fistula. His top areas of expertise are Pancreatic Cancer, Neuroendocrine Tumor, Cholangiocarcinoma (Bile Duct Cancer), Pancreatectomy, and Pancreaticoduodenectomy.

Dr. John Migaly is a distinguished colorectal surgeon and Chief of the Division of Colorectal Surgery/Ravitch Division at Johns Hopkins Medicine. He specializes in the treatment of colorectal cancer, inflammatory bowel disease, and other benign and complex colorectal conditions. Dr. Migaly is committed to providing advanced, patient-centered care, often using minimally invasive techniques including laparoscopic and robotic surgery, to help reduce recovery time and improve outcomes. Dr. Migaly comes to Johns Hopkins Medicine from the Duke University School of Medicine, serving from 2008-2024 on the surgery faculty treating patients primarily through the Duke Cancer Institute. He was elevated to Program Director of the General Surgery Residency in 2012, and subsequently served as Vice Chair of Education until 2024. His work was critical to the success of the undergraduate, graduate, and continuing medical education missions at Duke Surgery. Dr. Migaly earned his B.A. in Biochemistry from New York University and his medical degree from the New York University School of Medicine. He completed surgical residency and a research fellowship at Temple University Health Sciences Center, and colorectal surgery fellowship at Cleveland Clinic Florida. Dr. Migaly’s career has been marked not only by a complex and high-volume clinical colon and rectal surgery practice, but also a commitment to research and education, supported by greater than 200 publications, book chapters, and presentations. His research is centered around improving practice patterns and outcomes in colorectal cancer care and recovery. His leadership and dedication to advancing the field of colorectal surgery is evident through his service on committees that shape how colorectal care is delivered nationally, via his past and present service on the Program Committee, the Clinical Practice Guidelines Committee and the Diversity and Inclusion Committee of the American Society of Colon and Rectal Surgeons. Videos John Migaly, M.D.Chief of Colorectal Surgery"". Dr. Migaly is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Fistula. His top areas of expertise are Familial Colorectal Cancer, Gastroesophageal Junction Cancer, Anal Cancer, Colostomy, and Ileostomy.

Mariuxi Manukyan, M.D., is an assistant professor of surgery at Johns Hopkins, working primarily with the Division of Acute Care Surgery. Dr. Manukyan’s areas of clinical expertise include critical care, general surgery and trauma. Before joining Johns Hopkins, Dr. Manukyan was an acute care surgery fellow with the Department of Critical Care and Acute Care Surgery at The University of Texas Medical Center in Houston. Dr. Manukyan received her undergraduate degree from Brown University and earned her medical degree from Brown Alpert Medical School. She completed her residency at Indiana University and fellowships in acute care surgery and surgical critical care at UT Houston Medical Center. She is a member of the Association for Academic Surgery, the American College of Surgeons, the Pan American Trauma Society, the American Association for the Surgery of Trauma, and the Eastern Association for the Surgery of Trauma. Dr. Manukyan’s research interests include the field of geriatric trauma, specifically in identifying the specific risks associated within the geriatric trauma population and in finding in-hospital methods to decrease the morbidity and mortality associated with this patient population. Dr. Manukyan is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Fistula. Her top areas of expertise are Gastrointestinal Fistula, Hernia, Ogilvie Syndrome, Gastrostomy, and Hernia Surgery.

Shaun M. Kunisaki, MD, MSc, is Professor of Surgery at the Johns Hopkins School of Medicine, a Robert & Jane Meyerhoff Professor at Johns Hopkins University, and Associate Chief of Strategy and Integration in the Division of General Pediatric Surgery at the Johns Hopkins Children's Center. Dr. Kunisaki's clinical practice spans the full breadth of pediatric general, thoracic, and fetal surgery, but he is a nationally and internationally recognized authority in the prenatal and postnatal management of congenital thoracic anomalies, including lung malformations, esophageal atresia, and congenital diaphragmatic hernia. He is the Director of the Fetal Program in General Pediatric Surgery and chairs the Prenatal Pediatrics Steering Committee, a collaboration between the Johns Hopkins Children's Center and the Department of Gynecology & Obstetrics at the Johns Hopkins Hospital. As Director of the Pediatric Esophageal Center, he specializes in the management of complex esophageal disorders such as long-gap esophageal atresia. He serves on the Editorial Board of several journals, including Pediatrics and Surgery, and holds senior leadership positions in the American Pediatric Surgical Association (APSA), Section on Surgery of the American Academy of Pediatrics (AAP), and the Society of University Surgeons (SUS). Dr. Kunisaki has published over 100 peer-reviewed manuscripts and book chapters. His laboratory is funded by the National Institutes of Health and is largely focused on using stem cells derived from a patient's own tissues to better understand and treat several important pediatric surgical diseases. His team has developed techniques to reprogram fetal and neonatal tissues into pluripotent stem cells and organoids, and are working with scientists and engineers to improve long-term outcomes for children with severe birth defects, including spina bifida and congenital diaphragmatic hernia. More recently, he founded the Eastern Pediatric Surgery Network (EPSN), a clinical research collaborative composed of pediatric surgeons from over 20 children's hospitals in the country. A native of southern California, Dr. Kunisaki graduated with honors from Harvard College, the London School of Economics and Political Science, and Harvard Medical School. He completed general surgery residency at the Massachusetts General Hospital/Harvard Medical School followed by a pediatric surgery fellowship at the University of Michigan. He also did additional research fellowships at the Massachusetts General Hospital and at Boston Children's Hospital. Philanthropy plays a crucial role in the work Dr. Kunisaki does by providing seed funding for research, funding for the best educational resources to train the future generation of pediatric surgeons, and additional support services for families receiving treatment that are not covered by insurance. Support Dr. Kunisaki. Dr. Kunisaki is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Fistula. His top areas of expertise are Congenital Lobar Emphysema, Diaphragmatic Hernia, Congenital Diaphragmatic Hernia, Appendectomy, and Endoscopy.

Dr. Stevens is an Associate Professor of Surgery at the Johns Hopkins School of Medicine and an attending surgeon at The Johns Hopkins Hospital. Dr. Stevens obtained his medical degree from the University of Arizona where he also completed his residency in general surgery. He subsequently completed a fellowship in Trauma/Surgical Critical Care at the University of Maryland, R. Adams Cowley Shock Trauma Center. During his fellowship, Dr. Stevens completed a Master of Public Health degree at the Johns Hopkins Bloomberg School of Public Health. Dr. Stevens’ research interests center on surgical and trauma-care strengthening in resource-poor settings. Dr. Stevens is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Fistula. His top areas of expertise are Ogilvie Syndrome, Gastrointestinal Perforation, Gastrointestinal Fistula, Hernia Surgery, and Colostomy.

John Flowers is a General Surgeon in Baltimore, Maryland. Dr. Flowers is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Fistula. His top areas of expertise are Ogilvie Syndrome, Gastrointestinal Fistula, Hernia, Ileostomy, and Hernia Surgery. Dr. Flowers is currently accepting new patients.

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 Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. 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 Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. His top areas of expertise are Familial Adenomatous Polyposis, Juvenile Polyposis Syndrome, Attenuated Familial Adenomatous Polyposis, Gastrectomy, and Colonoscopy.

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

Eric Blum is a Gastroenterologist in Baltimore, Maryland. Dr. Blum is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Fistula. His top areas of expertise are Diverticular Disease, Familial Adenomatous Polyposis, Viral Gastroenteritis, Colonoscopy, and Endoscopy.

Joshua Wolf is a Colorectal Surgeon in Baltimore, Maryland. Dr. Wolf is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Fistula. His top areas of expertise are Anal Fissure, Familial Colorectal Cancer, Colorectal Cancer, Colostomy, and Hernia Surgery.

Susan Gearhart is a General Surgeon in Baltimore, Maryland. Dr. Gearhart is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Fistula. Her top areas of expertise are Rectal Prolapse, Colorectal Cancer, Bowel Incontinence, Ileostomy, and Hernia Surgery.

Jonathan Efron is a Colorectal Surgeon in Baltimore, Maryland. Dr. Efron is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Fistula. His top areas of expertise are Colorectal Cancer, Familial Colorectal Cancer, Lynch Syndrome, Ileostomy, and Hernia Surgery.