Dr. Cleaver is fellow of the American Board of Anti-Aging/Regenerative Medicine (ABAARM) and board certified in Internal Medicine (ABIM) and a rheumatologist. As a faculty member at A4M and MMI he lectures nationally and internationally. He holds the position of adjunct clinical professor at George Washington School of Medicine. Dr. Cleaver lectures extensively on longevity, senolytic science, aesthetics and scalp and hair restoration and actively trains medical professionals for A4M and Locanda Renaissance Group LLC. He has authored and published research, textbook chapters and articles for international sports and anti-aging magazines. While at the Cooper Clinic and Cooper Institute he has conducted Homeland Security NIH research.