Welcome to gastroenterology at MedStar St. Mary's Hospital
Our team provides expert care for adults with digestive health concerns, combining advanced technology with a personalized, compassionate approach. We’re committed to helping you feel your best with care that is both effective and tailored to your individual needs.
Our specialists diagnose and treat conditions affecting the entire digestive system—from common concerns like acid reflux to more complex conditions such as inflammatory bowel disease (IBD), pancreatitis, and gastrointestinal cancers. We also focus on early detection, identifying issues like ulcers, bleeding, and polyps before they become more serious.
We routinely offer minimally invasive endoscopic procedures, including upper endoscopy (EGD) and colonoscopy, to evaluate and treat digestive conditions. In many cases, these procedures allow us to diagnose and treat problems at the same time, often without the need for surgery.
Conditions we treat
Our providers
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Katherine L Johnson, DNP FNP
Gastroenterology
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Ripple Mehta, MD
Gastroenterology
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Mark Real, MD
Gastroenterology
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Nitin Kumar Sardana, MD
Gastroenterology
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Heather Tennyson, FNP
Gastroenterology
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Visiting us
Office hours:
Monday through Friday
8 a.m. - 4:30 p.m.
Fax: 855-657-5992
Insurance
MedStar Health participates with most major health insurance plans. Please contact your insurance company to make sure your plan is covered.