
Mark A. Crandall, MD
- Cardiology
St. Luke's Clinic Provider
Accepting New Patients
- 4.9 Star Rating
About Mark A. Crandall, MD
Mark Crandall, MD, FACC specializes in adult general cardiology, and has an interest in valvular heart disease, coronary artery disease, congestive heart failure, and preventive cardiology. In his practice he performs transesophageal and transthoracic echocardiography, stress tests, cardioversions, tilt table tests, and right and left heart catheterizations.
Dr. Crandall has held various medical leadership positions throughout his career, and has served as the director of the echocardiography laboratory and medical director of cardiology at St. Luke's Magic Valley. He currently serves as chief of staff at St. Luke's Magic Valley, in addition to being the chairman of the joint chiefs of staff for St. Luke's Health System.
Dr. Crandall is passionate about quality improvement and medical education, and enjoys working with medical students and residents. He is adjunct clinical faculty at the University of Washington School of Medicine and Idaho College of Osteopathic Medicine, and enjoys speaking at the annual St. Luke's Heart and Vascular Symposium.
Dr. Crandall served a two-year mission in Londrina, Brazil, and later graduated departmental valedictorian and cum laude from Brigham Young University with a bachelor's degree in sociology. He attended medical school at the University of Washington as part of the WWAMI program, followed by internal medicine residency at the Mayo Clinic. After completing fellowship training at The Ohio State University Medical Center, he moved back to his home town, Twin Falls, to start practice at St. Luke's Magic Valley.
He and his wife are the parents of three children, and they enjoy boating, skiing, snowmobiling, and traveling with their family.

Provider Locations
- Primary LocationSt. Luke's Clinic - Cardiology: Twin FallsMon - Wed: 8 a.m. - 4:30 p.m.Thu: 8:30 a.m. - 4:30 p.m.Fri: 8 a.m. - 3 p.m.
St. Luke's Clinic - Physician Center: Buhl
Mon, Wed, Thu, Fri: 8 a.m. - 5 p.m.Tue: 8 a.m. - 7 p.m.St. Luke's Clinic - Jerome Multispecialty Services
Mon - Fri: 8 a.m. - 5 p.m.
Reviews
Overall Rating
4.9
1139 Reviews
Dr. Crandall has excellent bedside manner, listens to our concerns, and works with heart doctor in Boise.
JUL 27, 2025
Great
JUL 18, 2025
Dr. Crandall saved my life I am very grateful
JUL 6, 2025
I love Dr Crandall
JUL 5, 2025