The Make-A-Wish Foundation is a 501(c)(3) non-profit organization founded in the United States that grants wishes to children with life-threatening medical conditions to enrich the human experience with hope, strength, and joy. In order to qualify for a wish, the child must be between the ages of 2 and a half and 18 at the time of referral. It is the child's physician that ultimately decides if a child is eligible. The organization grants wishes through its 62 chapters located throughout the country. Make-A-Wish also operates in 47 countries around the world through 36 affiliate offices. The President and CEO of the charity is David A. Williams. WWE Superstar John Cena has granted the most wishes overall (300 +). The national headquarters is in Phoenix, Arizona.