The 20 Best Gastrointestinal Bleeding Doctors Near Me in Parkville, MD
Find the Top Gastrointestinal Bleeding Experts and Specialists
Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville
David Hutcheon is a Gastroenterologist practicing medicine in Lutherville, Maryland. Dr. Hutcheon is rated as a Distinguished provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 25 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Intestinal Cancer, Angiodysplasia of the Colon, Colonoscopy, and Endoscopy. Dr. Hutcheon is board certified in American Board Of Internal Medicine.
MedStar Health Gastroenterology At MedStar Good Samaritan Hospital
Lawrence Mills is a Gastroenterologist practicing medicine in Baltimore, Maryland. Dr. Mills is rated as a Distinguished provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Hepatitis C, Ascites, Colonoscopy, and Endoscopy.
JH Health Care & Surgery Center – White Marsh
Anthony Kalloo is a professor of medicine with special interests in natural orifice translumenal endoscopic surgery, therapeutic endoscopy and sphincter of Oddi dysfunction. After receiving his medical degree at the University of the West Indies Medical School, Dr. Kalloo interned at Port of Spain General Hospital in Trinidad and performed his internal medicine residency at Howard University Hospital in Washington, D.C., where he was also chief resident. He completed fellowship training at the combined Georgetown University, Veterans Affairs Medical Center and National Institutes of Health program. Dr. Kalloo was an instructor of medicine at Georgetown University prior to joining the Johns Hopkins faculty in 1988. He was director of the Johns Hopkins Division of Gastroenterology and Hepatology from 2005–2020, and was an associate editor of Gastrointestinal Endoscopy. In 2009, Dr. Kalloo was recognized by the American Society for Gastrointestinal Endoscopy as the Distinguished Educator of the Year. In 2014, he received the Endoscopy Award from the German Society for Endoscopy for outstanding research and contribution in the field of endoscopy. In 2015, he received the BJ Vakil Oration from the Society of Gastrointestinal Endoscopy of India, which is bestowed on an international expert for his contribution to the field of gastrointestinal endoscopy. He has authored over 200 peer-reviewed publications and has more than 100 patents, including the use of botulinum toxin in the gastrointestinal tract, endoscopic cryotherapy and the winged biliary/pancreatic stent, as well as others related to natural orifice surgery. He is the pioneer of natural orifice translumenal endoscopic surgery, a technique that will enable abdominal surgery without the use of incisions. In 2015, he became a member of the inaugural chapter of the National Academy of Inventors at The Johns Hopkins University. This group represents the top 3% of all faculty inventors since 1969, and the top 1.5% of active Johns Hopkins faculty. Dr. Kalloo is a past panel chair for gastroenterology and urology devices with the United States Food and Drug Administration. He aims to advance the understanding, diagnosis, treatment and prevention of gastrointestinal and liver disease through patient care, education and research. Dr. Kalloo is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Hereditary Pancreatitis, Acute Pancreatitis, Achalasia, Endoscopy, and Gastrectomy. Dr. Kalloo is board certified in American Board Of Internal Medicine.
JH Health Care & Surgery Center – White Marsh
Dr. Mullin is an associate professor of medicine at The Johns Hopkins University School of Medicine. Dr. Mullin has more than 30 years of clinical experience in the field of general gastroenterology. Dr. Mullin is a reviewer and also serves on the editorial board of numerous gastroenterology journals. Videos Hopkins at Home presents, A Woman's Journey: Is It Celiac Disease?. Dr. Mullin is rated as an Experienced provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Small Bowel Bacterial Overgrowth, Diarrhea, Irritable Bowel Syndrome (IBS), Endoscopy, and Colonoscopy. Dr. Mullin is board certified in American Board Of Internal Medicine.
Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville
Sudhir Dutta is a Gastroenterologist practicing medicine in Lutherville, Maryland. Dr. Dutta is rated as a Distinguished provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 21 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Choledocholithiasis, Hiatal Hernia, Colonoscopy, and Gastrectomy. Dr. Dutta is board certified in American Board Of Internal Medicine.
The Johns Hopkins Hospital
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 Gastrointestinal Bleeding. He is also highly rated in 53 other conditions, according to our data. His clinical expertise encompasses Achalasia, Pancreatic Pseudocyst, Bile Duct Obstruction, Endoscopy, and Gastric Bypass. Dr. Khashab is board certified in American Board Of Internal Medicine.
Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville
Dr. Elham Afghani is an assistant professor of Medicine at the Johns Hopkins University School of Medicine. She joins us from Cedars Sinai Medical Center in Los Angeles. She received her medical degree from University of California, Irvine. She completed her internal medicine residency as well as an extra year as chief resident at the University of California, Irvine, Medical Center. She then completed her gastroenterology and hepatology fellowship with additional training in pancreatic diseases at the Johns Hopkins University School of Medicine. With a unique specialization in pancreatic disease, she has participated in numerous research projects at the Cedars Sinai division of pancreatico-biliary diseases and was involved in a U01 Consortium for the study of chronic pancreatitis, diabetes and pancreatic cancer. Dr. Afghani’s areas of expertise include acute and chronic pancreatitis, pancreatic cysts and pancreatic exocrine insufficiency. She is an accomplished researcher with multiple publications in prestigious peer-reviewed journals as well as presentations at national meetings. Dr. Afghani is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Bleeding. She is also highly rated in 9 other conditions, according to our data. Her clinical expertise encompasses Hereditary Pancreatitis, Acute Pancreatitis, Chronic Pancreatitis, Endoscopy, and Lithotripsy. Dr. Afghani is board certified in American Board Of Internal Medicine.
Johns Hopkins Bayview Medical Center
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 Gastrointestinal Bleeding. She is also highly rated in 41 other conditions, according to our data. Her clinical expertise encompasses Achalasia, Stomach Cancer, Pancreatic Pseudocyst, Endoscopy, and Gastric Bypass. Dr. Ngamruengphong is board certified in American Board Of Internal Medicine.
Woodholme Gastroenterology Assoc PA
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 Gastrointestinal Bleeding. He is also highly rated in 43 other conditions, according to our data. His clinical expertise encompasses Gastric Dysmotility, Diverticular Disease, Diarrhea, Endoscopy, and Gastrectomy. Dr. Onwueme is board certified in American Board Of Internal Medicine.
Woodholme Gastroenterology Assoc PA
Eric Blum is a Gastroenterologist practicing medicine in Baltimore, Maryland. Dr. Blum is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 27 other conditions, according to our data. His clinical expertise encompasses Diverticular Disease, Familial Adenomatous Polyposis, Viral Gastroenteritis, Colonoscopy, and Endoscopy. Dr. Blum is board certified in American Board Of Internal Medicine.
Woodholme Gastroenterology Assoc PA
Ernest Tsao is a Gastroenterologist practicing medicine in Baltimore, Maryland. Dr. Tsao is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 43 other conditions, according to our data. His clinical expertise encompasses Hepatitis, Gas Bloat Syndrome, Hepatitis C, Endoscopy, and Gastrectomy. Dr. Tsao is board certified in American Board Of Internal Medicine.
MedStar Good Samaritan Hospital
Malaz Alissa is a primary care provider, practicing in Internal Medicine in Baltimore, Maryland. Dr. Alissa is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Sepsis, Peptic Ulcer, Endoscopy, and Gastrostomy.
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James Corkum is a Gastroenterologist practicing medicine in Towson, Maryland. Dr. Corkum is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Gastroesophageal Reflux Disease (GERD), Gastrointestinal Bleeding, Gastric Dysmotility, Gastrectomy, and Colonoscopy.
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Muhammad Yousaf is a Gastroenterologist practicing medicine in Rosedale, Maryland. Dr. Yousaf is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Jaundice, Choledocholithiasis, Endoscopy, and Colonoscopy.
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Albert Fleisher is a Gastroenterologist practicing medicine in Rosedale, Maryland. Dr. Fleisher is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 22 other conditions, according to our data. His clinical expertise encompasses Stomach Cancer, Esophagitis, Angiodysplasia of the Colon, Colonoscopy, and Endoscopy.
Towson Gastroenterology Associates LLC
Niraj Jani is a Gastroenterologist practicing medicine in Towson, Maryland. Dr. Jani is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 44 other conditions, according to our data. His clinical expertise encompasses Gastroesophageal Reflux Disease (GERD), Hereditary Pancreatitis, Acute Pancreatitis, Endoscopy, and Pancreatectomy.
GMF Medical LLC
Maw Oo is a primary care provider, practicing in Internal Medicine in Towson, Maryland. He has been practicing medicine for over 44 years. Dr. Oo is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 22 other conditions, according to our data. His clinical expertise encompasses Acute Kidney Failure, Sepsis, Hospital-Acquired Pneumonia, Endoscopy, and Colonoscopy.
Robert D. Mathieson And Associates M.D. LLC
Robert Mathieson is a Gastroenterologist practicing medicine in Baltimore, Maryland. Dr. Mathieson is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Ascites, Gastrointestinal Bleeding, Chronic Erosive Gastritis, Endoscopy, and Gastrectomy.
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Vijay Adimoolam is a Gastroenterologist practicing medicine in Towson, Maryland. Dr. Adimoolam is rated as a Distinguished provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 24 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Bile Duct Obstruction, Visceromegaly, Endoscopy, and Gastrectomy.
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Francesco Grasso is a Colorectal Surgeon practicing medicine in Towson, Maryland. Dr. Grasso is rated as an Advanced provider by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 14 other conditions, according to our data. His clinical expertise encompasses Anal Cancer, Mesenteric Venous Thrombosis, Genital Warts, Bladder Reconstruction, and Ureteroscopy.
Last Updated: 04/28/2026








