Dr Keller was elected to The Board of Governors of the American Academy of HIV medicine, and serves on the Scientific Advisory Board of several Biotech companies. The Consumers’ Research Council has named Dr. Keller one of America’s Top Physicians in 2003, 2004 and 2005 in the fields of Internal Medicine, Immunology and Hematology. 

Dr. Keller continues his medical practice and research activities at his clinic and laboratory in Florida and is Chairman of the Board and Chief Scientific Officer of Phoenix Biosciences, Inc.