Answer: 
They have such Medicare health plans such as HMOs, PPOs PFFS and MSAs correct. 
Explanation: 
Medicare advantage program sometimes called it Part C or MA plan are an in all one alternative to original medical care. They are offered by private companies that are approved by medicare 
Rules: 
Medicare paid a locked amount for your care each month to the companies offer medicare advantage plans. 
Plans includes are: 
- Health maintenance organization. 
 - Preferred organization provider 
 - Spacial needs plan 
 - Private fee for service plan