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On average, Part D premiums are rising by $1 in 2015, to $32 per month. But that average is for all plans. Some of the most popular plans are boosting premiums by more than that, s ays Ross Blair, senior vice-president of eHealthMedicare.com, which includes tools to help people compare policies.
Part A (inpatient) of medicare is paid for by Medicare taxes. Part B (medical) is supplemented by a premium of about $105 per month. Prescription insurance sponsored by Medicare and run by private insurance (part d) can be purchased separately for as little as $20 per month.