Anthony N. Kalloo
Expertise in
14
conditions

Dr. Anthony N. Kalloo

Gastroenterology
Johns Hopkins Medicine
JH Health Care & Surgery Center – White Marsh
4924 Campbell Boulevard, Suite 110, Suite 110, 
Nottingham, MD 
Offers Telehealth
47 Years of Experience

Expertise in
14
conditions
Johns Hopkins Medicine
JH Health Care & Surgery Center – White Marsh
4924 Campbell Boulevard, Suite 110, Suite 110, 
Nottingham, MD 
OverviewInsuranceLocationsClinical ResearchSimilar Doctors

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 highly rated in 14 conditions, according to our data. His top areas of expertise are Hereditary Pancreatitis, Acute Pancreatitis, Achalasia, Endoscopy, and Gastrectomy.

His clinical research consists of co-authoring 178 peer reviewed articles. MediFind looks at clinical research from the past 15 years.

Graduate Year
1979
Residency
Howard University Hospital, Internal Medicine, 1985
Specialties
Gastroenterology
Licenses
Internal Medicine in MD
Board Certifications
American Board Of Internal Medicine
Fellowships
Washington VA Medical Center, Gastroenterology, 1987
Hospital Affiliations
The Johns Hopkins Hospital
Johns Hopkins Bayview Medical Center
Languages Spoken
English
Gender
Male

Insurance

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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Anthem
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  • HMO
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First Health
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Health Care Services Corporation
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Medicaid
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Walgreens
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Wellcare
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Locations

JH Health Care & Surgery Center – White Marsh
4924 Campbell Boulevard, Suite 110, Suite 110, Nottingham, MD 21236
Call: 410-933-7495

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.


178 Total Publications

Gastrointestinal endoscopy: keeping up with the times.
Gastrointestinal endoscopy: keeping up with the times.
Journal: Current opinion in gastroenterology
Published: August 07, 2025
View All 178 Publications
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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 highly rated in 52 conditions, according to our data. His top areas of expertise are Achalasia, Pancreatic Pseudocyst, Bile Duct Obstruction, Endoscopy, and Gastric Bypass.

Vikesh Singh
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Lutherville, MD 
 (10.1 miles away)
410-933-7495
Languages Spoken:
English, Hindi
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Vikesh Singh is a gastroenterologist who specializes in pancreatology and pancreaticobiliary endoscopy. He evaluates and treats patients with inflammatory diseases of the pancreas, including acute and chronic pancreatitis and autoimmune pancreatitis as well as the complications of these diseases. After earning his medical degree from the Johns Hopkins University School of Medicine, Dr. Singh remained at Johns Hopkins to complete residency training in internal medicine. He pursued fellowship training in gastroenterology at Brigham and Women’s Hospital, and earned a master’s degree in epidemiology from the Harvard T. H. Chan School of Public Health. He then returned to Johns Hopkins, where he completed a two-year advanced endoscopy fellowship with a focus on pancreaticobiliary endoscopy. Dr. Singh has been on the faculty at Johns Hopkins since 2008, and rose to the rank of professor in 2021. His research interests include acute and chronic pancreatitis, autoimmune pancreatitis, exocrine pancreatic insufficiency, and novel methods to evaluate and treat abdominal pain. Dr. Singh is a member of the board of directors of the National Pancreas Foundation, chair of the Pancreatic Disorders Section of the American Gastroenterological Association, a councilor for the International Association of Pancreatology and a member of the inaugural medical advisory board for the Familial Chylomicronemia Syndrome Foundation. Dr. Singh is highly rated in 27 conditions, according to our data. His top areas of expertise are Exocrine Pancreatic Insufficiency, Hereditary Pancreatitis, Acute Pancreatitis, Pancreatectomy, and Endoscopy.

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St Paul Place Specialists, Inc.

1734 York Rd, 
Lutherville, MD 
 (9.2 miles away)
410-252-2273
Languages Spoken:
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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

Find Dr. Kalloo's expertise for a condition
ConditionClose
  • Elite
  • Endoscopy
    Dr. Kalloo is
    Elite
    . Learn about Endoscopy.
    See more Endoscopy experts
  • Distinguished
  • Achalasia
    Dr. Kalloo is
    Distinguished
    . Learn about Achalasia.
    See more Achalasia experts
  • Acute Pancreatitis
    Dr. Kalloo is
    Distinguished
    . Learn about Acute Pancreatitis.
    See more Acute Pancreatitis experts
  • Hereditary Pancreatitis
    Dr. Kalloo is
    Distinguished
    . Learn about Hereditary Pancreatitis.
    See more Hereditary Pancreatitis experts
  • Advanced
  • Bile Duct Obstruction
    Dr. Kalloo is
    Advanced
    . Learn about Bile Duct Obstruction.
    See more Bile Duct Obstruction experts
  • Chronic Pancreatitis
    Dr. Kalloo is
    Advanced
    . Learn about Chronic Pancreatitis.
    See more Chronic Pancreatitis experts
  • Colonoscopy
    Dr. Kalloo is
    Advanced
    . Learn about Colonoscopy.
    See more Colonoscopy experts
  • Gastrectomy
    Dr. Kalloo is
    Advanced
    . Learn about Gastrectomy.
    See more Gastrectomy experts
  • Gastric Bypass
    Dr. Kalloo is
    Advanced
    . Learn about Gastric Bypass.
    See more Gastric Bypass experts
  • Gastroesophageal Reflux Disease (GERD)
    Dr. Kalloo is
    Advanced
    . Learn about Gastroesophageal Reflux Disease (GERD).
    See more Gastroesophageal Reflux Disease (GERD) experts
View All 10 Advanced Conditions
  • Experienced
  • Attenuated Familial Adenomatous Polyposis
    Dr. Kalloo is
    Experienced
    . Learn about Attenuated Familial Adenomatous Polyposis.
    See more Attenuated Familial Adenomatous Polyposis experts
  • Barrett Esophagus
    Dr. Kalloo is
    Experienced
    . Learn about Barrett Esophagus.
    See more Barrett Esophagus experts
  • Bile Duct Stricture
    Dr. Kalloo is
    Experienced
    . Learn about Bile Duct Stricture.
    See more Bile Duct Stricture experts
  • Bowel Incontinence
    Dr. Kalloo is
    Experienced
    . Learn about Bowel Incontinence.
    See more Bowel Incontinence experts
  • Childhood Pancreatitis
    Dr. Kalloo is
    Experienced
    . Learn about Childhood Pancreatitis.
    See more Childhood Pancreatitis experts
  • Cholangitis
    Dr. Kalloo is
    Experienced
    . Learn about Cholangitis.
    See more Cholangitis experts
View All 34 Experienced Conditions
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