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John S. Collier, MD

John S. Collier, MD


Doctor of Medicine

St. Luke's Health Partner
St. Luke's Health Partner

These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

  • Pediatric Gastroenterology

Accepting new patients
By Referral Only

Facilities & Clinics

    • Address
      2550 Addison Ave. E. Suites A, B, and F Twin Falls, ID 83301
      Mon - Fri: 8 a.m. - 5 p.m.
    • Phone
      (208) 814-8000
      (208) 933-9301

About John S. Collier


John Collier, MD cares for children and adolescents with a wide variety of gastrointestinal disorders. He values clear, open communication, family and patient empowerment, and shared decision-making. His professional interests include esophageal diseases, functional disorders (disorders of gut-brain interaction), inflammatory bowel disease, and interprofessional communication.

Dr. Collier grew up in Des Moines, Iowa and earned an undergraduate degree at Saint John’s University in Collegeville, Minnesota, where he ran cross country and track and sang in the chamber choir. In his free time, he enjoys backcountry skiing, cooking, and cycling.  He races for Team George’s Cycles and volunteers with Big Brothers Big Sisters.

  • Medical School

    University of Iowa College of Medicine
  • Residency

    Indiana University Office of Graduate Medical Educ
  • Fellowship

    University of Utah
  • Board Certification

  • Gender

  • Languages Spoken


Reviews for John S. Collier

  • These ratings and comments are collected through in-depth care experience surveys administered by Press Ganey Associates on behalf of St. Luke’s. The star ratings include surveys dating from 2018 to present. We've posted the ten most recent patient comments for your reference.