American Medical Association;
American Hospital Association & Federation of American Hospitals;
American Cancer Society Cancer Action Network;
American Health Care Association;
America’s Essential Hospitals;
America’s Hospitals and Health Systems;
American Nurses Association;
American Public Health Association;
National Disability Rights Network;
National Partnership Women and Families;
National Physicians Alliance;
American Academy of Family Physicians;
American Academy of Pediatrics;
American College of Physicians;
American Congress of Obstetricians and Gynecologists;
American Psychiatric Association American;
American Osteopathic Association;
Cardiac Health Association of the United States
Sources:
https://cooper.house.gov/groups-opposing-republican-health-plan
http://www.cbsnews.com/news/doctors-health-groups-denounce-ahca-health-care-vote/