Richard Johnson is a preventative medicine specialist practicing in Largo, FL. Johnson specializes in the health of individuals, communities, and particular populations, focusing on how to protect and maintain health as well as prevent disease and dangers. As a preventative health specialist, Johnson participates in the planning and evaluation of health services, researches diseases in specific populations and helps manage health care organizations. Preventative medicine specialists can specialize further in aerospace medicine, occupational medicine, or public health and general preventive medicine.