Portneuf Medical Group
Clinics / Affiliations
Intermountain Radiology Oncology
(208) 239-1750
777 Hospital Way, Pocatello ID, 83201
Biographical Sketch

Dr. Callaghan, a native of Butte, Montana, was raised in and around the Intermountain West. As an undergraduate he attended Westminster College in Salt Lake City, majoring in biology. While at Westminster, he played on the varsity soccer team. He graduated from the University of Utah Medical School, which was followed by a residency in radiation oncology at the Indiana University Medical Center in Indianapolis. Dr. Callaghan established his practice in Pocatello in 1997. He is board-certified in radiation oncology and is president of Intermountain Radiation Oncology. He is married to Cheryl Callaghan, M.D., a Pocatello gynecologist.

The Callaghan’s have two children. He is a dedicated family man who enjoys outdoor recreations, including fishing and hiking, as well as being involved in the activities of his children. Dr. Callaghan is the past Chief of Medical Staff of Portneuf Medical Center where he worked successfully with his colleagues to redesign the quality and credentialing processes. Dr. Callaghan is an advocate of a collaborative approach to the practice of medicine; one that embraces the participation of physicians, support staff, and facilities in optimizing the care of the patient.

Board Certified
  • American Board of Radiology
Education & Training
  • Indiana University Hospitals
  • University Of Utah School Of Medicine
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