Skip to Main Content
  • MyChart
  • Pay a Bill
  • Help
St. Luke’s Logo to Homepage
  1. Home
  2. Get Care
  3. Providers
  4. Diana C. Alexander, MD
  1. ProvidersProviders
Diana Alexander, MD

Diana C. Alexander, MD

  • Pediatric Cardiology
St. Luke’s Clinic Provider

St. Luke’s Clinic Provider

  • Accepting New Patients

  • 5 Star Rating
  • About
  • Locations
  • Reviews

About Diana C. Alexander, MD

Diana C. Alexander, MD, MPH specializes in care of children with acquired and congenital heart disease. She enjoys caring for pediatric patients of all ages and supporting patients and their families in understanding and managing their heart health.

Education

Medical School

University of Rochester School of Medicine

Residency

Johns Hopkins Hospital

Fellowship

Johns Hopkins Hospital

Board Certification

  • Pediatrics

  • Pediatric Cardiology

Provider Locations

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

    305 E. Jefferson St., Boise, ID 83712
    (208) 381-7384
    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 Cardiology: Boise is located.
  • St. Luke’s Children’s Muscular Dystrophy Clinic: Boise

    305 E. Jefferson St., Boise, ID 83712
    (208) 381-6900
    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 Muscular Dystrophy Clinic: Boise is located.
  • St. Luke’s Children’s Cardiology: Nampa

    9850 W. St. Luke’s Drive, North Entrance, Suite 180, Nampa, ID 83687
    (208) 381-7384
    Mon - Fri: 8 a.m. - 4:30 p.m.
    Location details
    North entrance to St. Luke’s Nampa Medical Center where St. Luke’s Children’s Cardiology is located
  • St. Luke’s Children’s Cardiology: Meridian

    520 S. Eagle Rd., Suite 2204, Meridian, ID 83642
    (208) 381-7384
    Mon - Fri: 8 a.m. - 4:30 p.m.
    Location details
    Entrance to St. Luke’s Meridian Medical Center where St. Luke’s Children’s Cardiology: Meridian is located.

Reviews

Overall Rating

5

84 Reviews

Now displaying 4 reviews
  • She was excellent

    MAY 4, 2026

  • Dr. Alexander and her team are more thorough in their exams than Primary Children’s.... Was worth the 600 mile round trip vs the 90. Thanks again Doc.

    DEC 4, 2025

  • Dr. Alexander, has been our cardiologist for many years now and we couldn’t be more happier with the care we have received. She really takes her oath as a physician to heart, no question goes unanswered, no concerns are ever dismissed. We wholeheartedly trust her opinion in caring for our son. We’re thankful for the day she dedicated her life to little hearts.

    OCT 11, 2025

  • Dr Alexander is always kind and has a true love for our kiddo. We trust her completely as she is a very knowledgeable and competent Dr.

    MAY 20, 2024

St. Luke’s Homepage

About St. Luke’s

Who We Are
News
Careers

Team Resources

For Providers
For Employees
For Contractors

Patient Resources

Financial Assistance
Mental Health Support
Medical Records
Patient Rights & Responsibilities

Essential Information

Accessibility
Price Transparency
En Español

Quick Links

Contact Us
St. Luke’s FitOne
St. Luke’s Health Partners
St. Luke’s Health Plan

DisclaimerNon-Discrimination/EEOPrivacy PracticesTerms of Use
© 2026 St. Luke’s Health System. All rights reserved.
FacebookLinkedinYoutubeInstagram