- Kaiser Permanente
https://healthy.kaiserpermanente.org/southern- california/health-wellness/coronavirus-information
- Memorial Care
https://www.memorialcare.org/coronavirus
- Providence
https://coronavirus.providence.org/socal-updates
- Hoag Health Network
https://covid19.hoag.org
- CalOptima
https://www.caloptima.org/en/Features/COVID-19.aspx