Fidelity Investments Inc., Boston, estimates that the average 65-year-old couple retiring today will need $200,001 to cover medical costs.

That estimate is 5.3% higher than the $190,000 Fidelity calculated in 2005 for post-retirement health care costs.

The number has increased an average of 5.8% per year since 2002, Fidelity says.

Fidelity includes in its estimate approximate expenses stemming from Medicare Part B and D premiums, Medicare cost-sharing provisions (co-payments, coinsurance, deductibles and excluded benefits) and out-of-pocket prescription costs. It does not include over-the-counter medications, most dental services and long term care.