San Mateo County Health Foundation | 631 followers on LinkedIn. A 501(c)(3) that exists to champion the health and well-being of San Mateo County citizens regardless of ability to pay. | San Mateo County Health Foundation is dedicated to building a healthy community. We are dedicated to partnering with San Mateo Medical Center and county clinics. We provide a steady stream of funds that are used to support patients and healthcare providers in San Mateo County’s healthcare system.