About Us

The doctors at Diagnostic Investigations are diagnosticians, and specially trained to diagnose and make treatment recommendations.

Benjamin Putnam, M.D.

Founder and CEO of Diagnostic Investigations, PLLC
Board certified by American Board of Internal Medicine (ABIM) and National Board of Physicians & Surgeons (NBPAS)
Diagnostician with years of experience in the art of developing a large differential diagnosis and solving complex and rare cases