Dr. Dennis Ruff received his Doctor of Medicine in 1982 from Albany Medical College Union University,
Albany, NY. After training in internal medicine he joined Healthcare Discoveries, formerly South Texas
Clinical trials, in 1988 as Medical Director, President and Investigator. Since 1989, he has served as
a Clinical Professor in the Dept. of Medicine at UTHSC San Antonio, TX. Dr. Ruff has acted as Principal
Investigator or Sub-Investigator for over 350 studies.
