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Mariel S. Castillo, MD
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Mariel S. Castillo, MD

  • Pediatrics
Phone: 360-814-6800
Skagit Regional Health Provider


Mariel Castillo, MD practices Pediatrics at Skagit Regional Health. She received her MD from University of St Thomas and is Board Certified by the American Board of Pediatrics. Dr. Castillo sees patients at Skagit Regional Clinics - Riverbend. Patients can make an appointment by contacting the clinic directly, or by requesting an appointment through the MyChart patient portal.

Dr. Castillo is part of a multi-specialty team of healthcare professionals serving northwest Washington, dedicated to serving with compassion and respect, one patient at a time.


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Medical School
University of St. Thomas
SUNY State University of New York - Brooklyn College of Medicine
SUNY Health Sciences Center - Brooklyn

Practice Locations

  • 1
    Skagit Regional Clinics - Riverbend
    Skagit Regional Clinics - Riverbend
    2320 Freeway Dr
    Mount Vernon, WA, 98273