Born in San Juan, Puerto Rico to a middle class family. Carlos Grew up in the San Francisco/Santa María suburb of San Juan and attended Colegio San Ignacio de Loyola prep school where upon graduation escaped to The Johns Hopkins University in Baltimore, Maryland. Then he obtained his Doctorate in Medicine from the University of Puerto Rico in San Juan in 1980. After an internship in New Orleans and a four-year Obstetrics and Gynecology residency at Cook County Hospital in Chicago he went to work in private practice in the Chicago suburbs until 1996.
He currently shares his life in Chicago with his life partner, Bill Rattan, and their dogs Bulgari and Cartier.
A freelance writer, he has contributed columns to Windy City Times in Chicago, Ambiente Magazine in Miami, Camp Newspaper in Kansas City. He's had several OP-Ed published at the Chicago Tribune.
Inducted in the Chicago Gay & Lesbian Hall of Fame iOctober 18th, 2007.
Dr Mock is now on Facebook and posts links to articles on a wide range of topics including Finance, Politics, and LGBT news.