Granite Hills Health Care El Cajon, CA - Assisted Living Community size: Small (1-10) Get Prices & Availability (800) 341-4753 Office Granite Hills Health Care is a first-class assisted living community in El Cajon, California. It is within dynamic San Diego County which is part of the Golden State. + Read more Share this listing: El Cajon Senior Services Near Me None Listed El Cajon Senior Living Near Me