For inquires please contact:

John Witkowski — President
Michelle Thompson — GPO Administrator
Susan Villhauer — Accounting

5400 Laurel Springs Parkway 
Suite 405 
Suwanee, GA 30024
Phone: 770-205-2651
Fax: 678-947-9111 
Email: john.witkowski@uppi.org • mthompson@uppi.org • svillhauer@uppi.org