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Cass Smith, MD

Cass R. Smith, MD

  • Pediatric Gastroenterology
St. Luke’s Clinic Provider

St. Luke’s Clinic Provider

  • Accepting New Patients

  • 4.9 Star Rating
  • About
  • Locations
  • Reviews

About Cass R. Smith, MD

Cass R. Smith, MD is a pediatric gastroenterologist who sees a wide variety of pediatric patients. His areas of special interest include inflammatory bowel disease, diseases of the pancreas and liver, eosinophilic esophagitis, neurogenic bowel due to spina bifida, functional abdominal pain and constipation. He performs upper and lower endoscopy, including removal of polyps and control of bleeding, liver biopsies, removal of foreign bodies and care and maintenance of gastrostomy tubes. Dr. Smith ...

Education

Medical School

University of Nevada School of Medicine

Residency

Creighton - Nebraska University

Fellowship

Medical College of Wisconsin

Board Certification

  • Pediatric Gastroenterology

  • Pediatrics

Provider Locations

  • Primary Location
    St. Luke’s Children’s Gastroenterology: Boise

    305 E. Jefferson St., Boise, ID 83712
    (208) 381-7310
    Mon - Fri: 8 a.m. - 4:30 p.m.
    Location details
    Street view of the Idaho Elks Children’s Pavilion where St. Luke’s Children’s Gastroenterology: Boise is located.
  • St. Luke’s Children’s Spina Bifida Clinic: Boise

    305 E. Jefferson St., Boise, ID 83712
    (208) 381-7122
    Mon - Thu: 8 a.m. - 4:30 p.m.
    Fri: 8 a.m. - 3 p.m.
    Location details
    Street view of the Idaho Elks Children’s Pavilion where St. Luke’s Children’s Spina Bifida Clinic: Boise is located.
  • St. Luke’s Children’s Gastroenterology: Idaho Falls

    3430 Washington Pkwy, Idaho Falls, ID 83404
    (208) 381-7310
  • St. Luke’s Wood River Medical Center

    100 Hospital Dr, Ketchum, ID 83340
    (208) 727-8283
  • St. Luke’s Children’s Gastroenterology: Meridian

    520 S Eagle Rd, Suite 2203, Meridian, ID 83642
    (208) 381-7310

Reviews

Overall Rating

4.9

292 Reviews

Now displaying 4 reviews
  • Dr. Smith is one of the best Doctors we’ve ever had. He is patient and never makes you feel rushed. He listens and always makes sure you feel heard. He really makes you feel like part of your child’s medical team; which you are! His nurses are also amazing. If we have problems they always jump in to make sure they’re resolved ASAP. We’ve been with Caaa Smith and his team for 6 years and couldn’t be happier.

    JAN 27, 2026

  • He gave us a few options of what we could do moving forward and let us decide what we thought would be best for our child.

    JUN 17, 2025

  • He asks great questions and is a great listener. Answers all the questions we have.

    MAY 25, 2025

  • Dr. Cass Smith’s bed side manner and ability to make my child feel comfortable within a few minutes is a gift. To all parents reading this rest assure Dr. Cass Smith (I call him Dr. Cass) knows what he’s doing. It’s worth the wait to see him. Ask as many questions as you’d like he makes sure you understand and will establish a plan for your child’s particular circumstances.

    APR 17, 2025

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