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COVID-19 Update

We are experiencing extremely high call volume related to COVID-19 vaccine interest. Please understand that our phone lines must be clear for urgent medical care needs. We are unable to accept phone calls to schedule COVID-19 vaccinations at this time. When this changes, we will update this web site. Please know that our vaccine supply is extremely small. Read all COVID-19 Vaccine Information.

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The exterior of the Knoll North building.

Johns Hopkins Gastroenterology & Hepatology in Columbia

A full range of gastroenterology and hepatology services is available from our GI experts at Johns Hopkins Medicine, without a trip to the hospital. This brand new outpatient center is an all-in-one clinic, endoscopy center and surgery center offering screening, diagnosis and treatment for a wide range of GI disorders.


Appointments When You Need Them

Getting an appointment that works with your schedule (and your fasting requirements) is simple. We have both morning and afternoon appointments available on most days, and we can even arrange immediate appointments when necessary.


Comprehensive GI Services in Columbia

For Referring Physicians: Expedite patient diagnosis with our direct access endoscopy program.


Our Team

Patients at our Columbia center have access to the experience and expertise of Johns Hopkins physicians and nurses. The center is led by Clinical Director Tsion Abdi, M.D., and Ekta Gupta, M.D., director of endoscopy at the Knoll North Ambulatory Surgery Center.

Meet our Providers

Meet our Nurse Practitioner

Jacqueline Darmody, ANP-BC

Title: Certified Nurse Practitioner
Jacqueline Darmody
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