Dr. Velasco is a third-generation Florida native. He received his Doctor of Veterinary Medicine (DVM) degree from Auburn University College of Veterinary Medicine in 1978. He has been in practice in northern Clay County since his graduation and established VCA All Animal Hospital of Orange Park in 1980. VCA All Animal Hospital of Orange Park quickly gained distinction for becoming the first American Animal Hospital Association (AAHA) member in Clay County. Dr. Velasco also established Fleming Island Pet and Bird Clinic (FIPC) in 1988.

He has been married to his wife, Dr. Michelle Curtis, since 1979. Dr. Curtis works at FIPC and specializes in avian medicine. Dr. Velasco and his wife have two children, Schuyler and Jesse. Dr. Velasco has a dog, Boston, and a tuxedo cat, Gucci. His personal interests include exercising, reading, and paddle boarding.