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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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A close-up of Sibley Memorial Hospital building.

Gastroenterology and Hepatology Services at Sibley Memorial Hospital, Washington, D.C.

Our clinicians at The Johns Hopkins Division of Gastroenterology and Hepatology at Sibley Memorial Hospital offer the world-class expertise and unparalleled resources of Johns Hopkins Medicine to residents of the Washington, D.C. metropolitan area.

Specialties at Sibley Memorial Hospital

  • Barrett's therapy
  • Chromeoendoscopy
  • Confocal laser endomicroscopy
  • Motility
  • Video capsule endoscopy


All New Patients

In preparation for your first visit, please complete and bring the New Patient Questionnaire to your appointment. Having this completed prior to your appointment will speed up your appointment check-in.

New Hepatology Referrals

If you're interested in becoming a new patient and you have not been seen by a Hopkins provider before, please complete and fax a copy of the Hepatology Patient Registration Form (available as a PDF or Word document) to the office at 202-660-7359.


Advanced Endoscopic Procedures


General GI


Inflammatory Bowel Disease

Nurse Practitioners


Nurse Practitioner

Karla Pillote, M.S.N., C.A.N.P.

Title: Certified Registered Nurse Practitioner Specialty: Hepatology & Liver Transplant
Karla Pillote, M.S.N., C.A.N.P.

Pancreatobiliary Disease

Nurse Practitioner

Joy C. Bright-Agindotan, M.S.N., F.N.P.-B.C.

Title: Certified Registered Nurse Practitioner
Specialty: Pancreatobiliary diseases
Joy C. Bright-Agindotan

Weight Loss and Obesity

Nurse Practitioner

Kristen Koller, C.R.N.P.

Title: Advanced Gastroenterology Nurse Practitioner; Bariatric Nurse Practitioner
Specialty: Advanced therapeutic endoscopy, bariatric endoscopy, pancreaticobiliary disease
Kristen Koller


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