Cross is described as 5-foot-11., weighing 150 pounds, with a bald head and brown eyes. He was last seen wearing a purple shirt and black pants.
Cross serves as president of the Board of the Cancer Alliance of Naples, and previously served as a member of the Board for Collier County P.L.A.N. and the American Cancer Society of Naples. He has degrees from Northwestern University and the University of Texas Southwestern Medical Center and completed his residency at Harvard Medical School, according to his biography on GenisisCare.com.
Authorities are asking anyone with information about his disappearance to contact CCSO at 239-252-9300 if you have any information on this missing person.
Audrey Conklin is a digital reporter for FOX Business and Fox News. Email tips to firstname.lastname@example.org or on Twitter at @audpants.