Manteca’s only dermatologist Clinton Prescott, Jr., M. D., openly welcomes competition from other skin specialists due to the volume of patients he sees in his practice during a given week at his Central Valley Dermatology practice near Doctors Hospital. Prescott said from the time he first saw patients in his specialty in 1982 some 42 years ago, the skin cancers contrasting the numbers of lesser skin irritations have reversed. Years ago there would be one cancer out of eight abnormal skin lesions he would discover.