- Barton Healthcare System
- Bassett Healthcare Network
- Baton Rouge General Health System
- Baxter Health System
- BayCare Health System
- Bayhealth
- Baylor Scott and White Health
- Baystate Health
- Beacon Behavioral Health
- Beacon Health System
- Beaufort Memorial Hospital
- Beaumont Health Systems
- Beebe Healthcare
- Bellin Health Systems
- Beloit Health System
- Benefis Healthcare System
- Berkshire Health Systems
- Beth Israel Lahey Health
- Billings Clinic
- Bingham Memorial Hospital
- BJC Healthcare
- Blanchard Valley Health System
- Blessing Health System
- BMC Hospitals
- Boa Vida Healthcare
- Bon Secours Charity Health System
- Bon Secours Health System
- Boston Childrens Hospital
- Boston Medical Center
- Boulder Community Health