Contact List of Leadership

The executive leadership for PASA is composed of Dr. Tracy Nolen as Principal Investigator (RTI International), Dr. Tom Kosten as Co-Principal Investigator (Baylor College of Medicine), and Dr. Nathan Vandergrift as Co-Principal Investigator (RTI International). 

Tracy Nolen, Dr.PH.,  Project Director and Principal Investigator**
RTI International
3040 E. Cornwallis Road
Research Triangle Park, NC 27709
Phone:919-541-7467
E-mail:pasa@rti.org

Tom Kosten, M.D.,  Co-Project Director and Co-Principal Investigator
Division of Alcohol and Addiction Psychiatry
Baylor College of Medicine
One Baylor Plaza, BCM 310
Houston, TX 77030
Phone: 713-794-7032
E-mail:Kosten@bcm.edu

Nathan Vandergrift, Ph.D, Co-Principal Investigator**
Senior Statistician
RTI International
3040 E. Cornwallis Road
Research Triangle Park, NC 27709
Phone: 919-316-3739
E-mail:pasa@rti.org