Marshall University Joan C. Edwards School of Medicine | Medical School, 1989
Doctor of Medicine (MD)
UC Health Holmes Hospital | Fellowship, 2007
Certifications
American Board of Internal Medicine | Other, 1999
American Board of Internal Medicine | Other, 1993
American Board of Internal Medicine | Other, 2007
Ratings and Reviews
The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.
4.9 / 5 (518 ratings, 10 comments)
Comments from patients
5 / 5
Excellent doctor very knowledgeable
Reviewed March 19, 2026
5 / 5
Listened to my concerns and scheduled the appropriate tests.
Reviewed March 19, 2026
5 / 5
All was good
Reviewed March 14, 2026
5 / 5
Dr. Callihan is an excellent doctor and a very caring man