- Kaiser Permanente Medical Center - San Francisco
- Zuckerberg San Francisco General Hospital
- California Pacific Medical Center
- San Francisco VA Medical Center
- Kaiser Regional Laboratory (Berkeley)
- Alameda County Medical Center - Highland (Oakland)
- Kaiser Permanente Medical Center - Oakland, Richmond, Walnut Creek, Antioch, San Leandro
- John Muir Medical Center (Concord, Walnut Creek)
- Sutter Health - Shared Lab Livermore
- Kaiser Permanente Medical Center - South San Francisco, Redwood City
- El Camino Hospital (Mountain View)
- Stanford Health Care (Palo Alto)
- VA Palo Alto Health Care System (Palo Alto)
- Kaiser Permanente Medical Center - Vallejo, Vacaville, Santa Rosa, San Rafael
- North Bay Medical Center (Fairfield/Vacaville)
- Providence Santa Rosa Memorial Hospital (Santa Rosa) - pending CDPH approval
- Providence Queen of the Valley Hospital (Napa)
- Adventist Health – Ukiah Valley (Ukiah)
- Kaiser Permanente Medical Center - Sacramento, Roseville, Modesto, Fresno, Kern County (pending CDPH approval)
- St. Agnes Medical Center (Fresno)
- Marian Medical Center (Santa Maria)
- Kern Medical Center (Bakersfield)
- Adventist Health – Sonora (Sonora)