East San Gabriel Valley Health Center ... (661) 471-4400 Monday - Friday 8:00 a.m. - 4:30 p.m. or self-schedule in the MyWellness Patient Portal found here. For more information, click here www.vaccinatelacounty.com or call 211. South Valley Health Center (SVHC) provides vital access to health care services in south Palmdale and the ....