Mark D. Derleth M.D. Accepting new patients

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Mark Derleth, M.D., is a board-certified physician at the Digestive Health Centers at UW Medical Center and Eastside Specialty Center.

Dr. Derleth believes that good communication is a crucial part of providing good care to patients. He strives to understand patients’ concerns and expectations so that he can best assist them.

Dr. Derleth earned his M.D. at Boston University. He is board certified in both Internal Medicine and Gastroenterology. His clinical and research interests include general gastroenterology, including GERD, dyspepsia and abdominal pain and diarrhea and constipation.

Personal Interests

In his free time Dr. Derleth enjoys music (he is a guitarist and singer, mostly performing for his family these days), being outdoors, hiking, camping, skiing, biking and swimming.
Digestive Health Center at UWMC

Digestive Health Center at UWMC

1959 NE Pacific St. Seattle, WA 98195


Abdominal pain, Bile duct disorders, Colorectal care, Constipation

Digestive Health Center at the Eastside Specialty Center

Digestive Health Clinic at Eastside Specialty Center

3100 Northup Way Bellevue, WA 98004


Abdominal pain, Constipation, Crohn's disease, Dysphagia

Intestinal Transplant Clinic at UWMC

Intestinal Care and Transplantation Clinic at UWMC

1959 NE Pacific St. Seattle, WA 98195


Inflammatory bowel disease, Intestine transplant, Transplant surgery

University of Washington

Fellowship, 2013, Gastroenterology

University of Washington

Residency, 2010, Internal Medicine

University of Washington

Internship, 2007, Internal Medicine

Boston University School of Medicine

Medical education, 2006, Inpatient Medicine


Board Certifications
  • Gastroenterology, 2013, American Board of Internal Medicine
  • Internal Medicine, 2009, American Board of Internal Medicine