David M. Callahan, Ph.D.
Providing Psychological Services to 
Cape Cod and Southeastern Massachusetts

Interested in learning more about our services?
Contact Us

        Business Phone: 508.235.3467             eFax: 508.437.2416      email: dcallahan@saintvincentsservices.org

Providing comprehensive psychological and neuropsychological assessment services to children and adults on Cape Cod and Southeastern Massachusetts since 1986.
I am now seeing clients in-person in Fall River & Hyannis, but I am able to do virtual contacts on an as-needed basis
Virtual testing works! See the 2021 Satisfaction Survey. 97.4%