[[state-start:AL,AK,AZ,AR,CA,CO,CT,DE,DC,FL,GA,GU,HI,ID,IL,IN,IA,KS,KY,LA,ME,MD,MA,MI,MN,MS,MO,MT,MP,NE,NV,NJ,NM,NY,NC,ND,OH,OK,OR,PA,PR,RI,SC,SD,TN,TX,UT,VT,VI,VA,WA,WV,WI,WY]]There are also coverage choices offered by private insurance companies like UnitedHealthcare. These include Medicare Advantage (Part C) plans and Medicare Prescription Drug (Part D) plans, and Medicare Supplement plans. Let's learn more.[[state-end]]
Health Maintenance Organization (HMO) plans: One of the most popular types of managed-care plans, this type of Medicare Advantage plan comes with a provider network that you must use to be covered by the plan (with the exception of medical emergencies). If you use non-network providers, you may have to pay the full cost for your care. You’re also required to have a primary care physician; if you need to see a specialist, you’ll need to a get a referral from your primary care doctor first.
Robert M. Ball, a former commissioner of Social Security under President Kennedy in 1961 (and later under Johnson, and Nixon) defined the major obstacle to financing health insurance for the elderly: the high cost of care for the aged combined with the generally low incomes of retired people. Because retired older people use much more medical care than younger employed people, an insurance premium related to the risk for older people needed to be high, but if the high premium had to be paid after retirement, when incomes are low, it was an almost impossible burden for the average person. The only feasible approach, he said, was to finance health insurance in the same way as cash benefits for retirement, by contributions paid while at work, when the payments are least burdensome, with the protection furnished in retirement without further payment.[97] In the early 1960s relatively few of the elderly had health insurance, and what they had was usually inadequate. Insurers such as Blue Cross, which had originally applied the principle of community rating, faced competition from other commercial insurers that did not community rate, and so were forced to raise their rates for the elderly.[98]

Medicare Part B premiums are commonly deducted automatically from beneficiaries' monthly Social Security checks. They can also be paid quarterly via bill sent directly to beneficiaries. This alternative is becoming more common because whereas the eligibility age for Medicare has remained at 65 per the 1965 legislation, the so-called Full Retirement Age for Social Security has been increased to 66 and will go even higher over time. Therefore, many people delay collecting Social Security but join Medicare at 65 and have to pay their Part B premium directly.