Mark Buchholz, MD Pediatric Specialist Specialty: Pediatric Critical Care Sub Specialties: Pediatrics Languages: English, Interpreters Available Gender: Male Education and Certification Medical School: University of Washington. Residency: University of Arizona Health Sciences Ctr - Tucson, AZ. Internship: University of Arizona Health Sciences Ctr - Tucson, AZ. Fellowship: University of Colorado Health Science Center. Contact Information Practice Name: Northwest Pediatric Critical Care Care Locations Primary Address Randall Children's Hospital At Legacy Emanuel 2801 N. Gantenbein Portland, OR, 97227 Phone: 503-276-6500 Secondary Address Northwest Pediatric Critical Care 2801 N Gantenbein Ave Suite 3135 Portland, OR, 97227 Phone: 503 413-2794 Fax: 503 413-2121