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 (497 ratings, 10 comments)
Comments from patients
5 / 5
Dr Callihan takes time and discusses everything about your care
Reviewed September 21, 2025
5 / 5
Dr Callihan is my type of guy! Excellent himan being
Reviewed September 20, 2025
5 / 5
Great dr
Reviewed September 11, 2025
5 / 5
Dr. Callihan is great!
Reviewed September 02, 2025
5 / 5
He always takes the time to listen to whatever is on your mind. Especially if you have concerns. He takes the time to explain things to you.