The rise in Medicare premiums will NOT affect everyone. In an article from the Dallas Morning News, there is this -

Three in four Medicare beneficiaries are protected by a "hold-harmless" provision in the law that ensures that their Medicare premiums won't go up any more than their Social Security benefits, said Kaiser policy analyst Juliette Cubanski.

So next year, if they get the same amount from Social Security, they'll pay Medicare the same $96.40 per month they do today.

That won't be true, however, for the remaining 25 percent of Medicare beneficiaries, Cubanski said. They include:

•Higher-income beneficiaries whose modified adjusted gross income exceeds $85,000 for individuals and $170,000 for couples in 2009.

•New enrollees who didn't collect Social Security benefits or weren't covered under Part B a year earlier.

•Low-income individuals whose Medicare Part B premiums are paid by Medicaid.

Source