
Overview
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 Barrett Esophagus. His top areas of expertise are Hereditary Pancreatitis, Acute Pancreatitis, Achalasia, Endoscopy, and Gastrectomy.
His clinical research consists of co-authoring 177 peer reviewed articles. MediFind looks at clinical research from the past 15 years. In particular, he has co-authored 3 articles in the study of Barrett Esophagus.
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Locations
4924 Campbell Boulevard, Suite 110, Suite 110, Nottingham, MD 21236
Clinical Research
Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.
Johns Hopkins Endoscopy & Surgery Center - Columbia
Marcia (Mimi) Canto, M.D., M.H.S. is a Professor of Medicine at The Johns Hopkins University School of Medicine. She is also the Director of Endoscopy at the Johns Hopkins Hospital. Dr. Canto received her Bachelor of Science degree from the University of the Philippines in Manila in 1981 (summa cum laude). She received her Doctor of Medicine degree in 1985 from the University of the Philippines and completed her training in Internal Medicine from State University of New York Sciences Center in Brooklyn, Brooklyn, New York. Dr. Canto completed a postdoctoral fellowship in Gastroenterology-Hepatology at The Johns Hopkins University School of Medicine and received a Master of Health Science in Clinical Epidemiology from The Johns Hopkins University School of Hygiene and Public Health in 1993. Dr. Canto came back to Johns Hopkins after spending three years at Case Western Reserve University in Cleveland, Ohio for advanced endoscopic training. Her primary clinical interests include endoscopy, particularly the use of endoscopic ultrasound (EUS) in detecting early pancreatic cancer and its precursors. She has recently shown that endoscopic ultrasound can be used to detect asymptomatic precancerous lesions in patients with a family history of pancreatic cancer. Dr. Canto is rated as an Elite provider by MediFind in the treatment of Barrett Esophagus. Her top areas of expertise are Barrett Esophagus, Familial Pancreatic Cancer, Gastroesophageal Reflux Disease (GERD), Endoscopy, and Gastrectomy.
University Of Maryland Physicians P.A.
Bruce Greenwald is a Gastroenterologist in Baltimore, Maryland. Dr. Greenwald is rated as a Distinguished provider by MediFind in the treatment of Barrett Esophagus. His top areas of expertise are Barrett Esophagus, Esophageal Cancer, Benign Esophageal Stricture, Endoscopy, and Colonoscopy.
The Johns Hopkins Hospital
Dr. Stephen J. Meltzer is a Professor of Medicine and Oncology at Johns Hopkins University, Division of Gastroenterology. He is the Director of GI Early Detection Biomarkers Laboratory and a member of the Johns Hopkins Kimmel Cancer Center. His research interests are Gastrointestinal cancer and precancer biomarker discover, development and validation; genomics, epigenomics and bioinformatics, early detection of cancer, outcomes research in cancer and precancer, risk stratification prediction in cancer and precancer, Barrett's esophagus, inflammatory bowel disease-associated cancer, liver cancer and gastric cancer. After receiving degree in Medicine at the State University of New York Medical School, Dr. Meltzer interned at Tulane University in New Orleans and University of Texas Medical Branch in Galveston, TX. He completed his fellowship training program in the University of Colorado and the Lenox Hill Hospital. He was an Assistant Professor in UCLA, Center for Health Science in 1987. Prior to joining the faculty at Johns Hopkins in 2006, he was Professor of Medicine and Pharmacology, Founder and Head of Aero digestive Cancer/Biomarker Program in School of Medicine, University of Maryland at Baltimore. He is an Associate Editor of Cancer Research and a member of the editorial board of Esophageal. He has published 152 original scientific papers in high-impact scientific journals. He also has 43 chapters, review articles, editorials, or letters to the editor; 1 book; and 139 abstracts to his name. He has given a plethora of invited lectures around the world, all involving his principal field of esophageal and gastrointestinal cancer research. He has been the recipient of numerous prestigious national and international awards, including the Robert and Sally D. Funderburg Award in Gastric Cancer Biology and membership in the American Society for Clinical Investigation. Special Interests: Gastrointestinal cancer and precancer biomarker discover, development and validation; genomics, epigenomics and bioinformatics, early detection of cancer, outcomes research in cancer and precancer, risk stratification prediction in cancer and precancer. Barrett's esophagus, inflammatory bowel disease-associated cancer, liver cancer, gastric cancer. Dr. Meltzer is rated as a Distinguished provider by MediFind in the treatment of Barrett Esophagus. His top areas of expertise are Barrett Esophagus, Esophageal Cancer, Stomach Cancer, Colorectal Cancer, and Endoscopy.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Elite
- EndoscopyDr. Kalloo isElite. Learn about Endoscopy.
- Distinguished
- AchalasiaDr. Kalloo isDistinguished. Learn about Achalasia.
- Acute PancreatitisDr. Kalloo isDistinguished. Learn about Acute Pancreatitis.
- Hereditary PancreatitisDr. Kalloo isDistinguished. Learn about Hereditary Pancreatitis.
- Advanced
- Bile Duct ObstructionDr. Kalloo isAdvanced. Learn about Bile Duct Obstruction.
- Chronic PancreatitisDr. Kalloo isAdvanced. Learn about Chronic Pancreatitis.
- ColonoscopyDr. Kalloo isAdvanced. Learn about Colonoscopy.
- GastrectomyDr. Kalloo isAdvanced. Learn about Gastrectomy.
- Gastric BypassDr. Kalloo isAdvanced. Learn about Gastric Bypass.
- GastroparesisDr. Kalloo isAdvanced. Learn about Gastroparesis.
- Experienced
- Attenuated Familial Adenomatous Polyposis
- Barrett EsophagusDr. Kalloo isExperienced. Learn about Barrett Esophagus.
- Bile Duct StrictureDr. Kalloo isExperienced. Learn about Bile Duct Stricture.
- Bowel IncontinenceDr. Kalloo isExperienced. Learn about Bowel Incontinence.
- Childhood PancreatitisDr. Kalloo isExperienced. Learn about Childhood Pancreatitis.
- CholangitisDr. Kalloo isExperienced. Learn about Cholangitis.

