> When HMOs were coming into existence, indemnity plans often did not cover preventive services, such as immunizations, well-baby checkups, mammograms, or physicals. It is this inclusion of services intended to maintain a member's health that gave the HMO its name.
Since the above services are required in all plans by law since ACA, there is much less difference between an HMO style plan and a PPO plan where you only go to in network providers.
https://healthy.kaiserpermanente.org/northern-california/sho...
https://healthy.kaiserpermanente.org/northern-california/lea...
The old style HMO only plan organizations are almost all gone.
https://en.wikipedia.org/wiki/Health_maintenance_organizatio...
> When HMOs were coming into existence, indemnity plans often did not cover preventive services, such as immunizations, well-baby checkups, mammograms, or physicals. It is this inclusion of services intended to maintain a member's health that gave the HMO its name.
Since the above services are required in all plans by law since ACA, there is much less difference between an HMO style plan and a PPO plan where you only go to in network providers.