Providing high quality preventive and primary care health services to LA and San Bernadino Counties. ParkTree Community Health Center is a comprehensive medical center facility providing primary healthcare to adults and children. The mission of Pomona Community Health Center dba Parktree Community Health Center (PCHC) is “to be the medical home for the underserved in our community by providing high quality preventive and primary care health services.” Our vision is to play a pivotal role in our community’s ability to achieve optimal health and a high quality of life.