- Bucyrus Hospital
- Buena Vista Regional Medical Center
- Buen Samaritano Hospital
- Buffalo General Medical Center
- Buffalo Hospital
- Buffalo Psychiatric Center
- Bullock County Hospital
- Burdett Birth Center at Samaritan Hospital
- Burgess Health Center
- Burke Health
- Burke Rehabilitation Hospital
- Burnett Medical Center
- Butler County Health Care Center
- Butler Hospital
- Butler Memorial Hospital
- Butte County Psychiatric Health Facility
- Buttonwood Behavioral Health Hospital
- Byrd Regional Hospital