I'm always hestitant to accept large numbers for something as undefineable as medical care. I find such a number a scare tactic. Sometimes it urges people to act; other times it simply causes them to throw up their hands. The $64,000 estimate is quite low in general; I've heard numbers in the $250,000 range from Fidelity. I never attempt to have someone save for health care like one would save for college or retirement supplementary income.
What I do is work with the customer to estimate what they typically will pay out of pocket annually for health care. I look at the cost of Medicare Part B, plus a medicare supplemental policy in their locale. Then I add it some kind of drug coverage if it is not in the supplement. Then I add co-payments and OTC drugs. In that way they can see what they might pay once 65 or older and can contrast it with what they pay while working. For many people it is actually a cost savings as many employers don't pick up that much of the cost. As an example the cost of a family plan today is in the $14,000 a year range, while the costs for a couple on Medicare as I describe run $5000 - $6000 a year. That can best be managed as part of one's expenses each year.
Medical coverage is part of the MUSTs in a budget. So we put it there. It isn't optional. As for LTC, there is a point when insurance costs too much so one must take the risk. If the cost of the insurance is that burdensome, then there probably aren't enough assets to be protecting and spending them down is in order. Eventually the Medicaid program comes into play. For many people that is the right choice. For those in some mid-range, insurance is the answer. Above that point, if one could afford the approximate $100k for a nursing home or home health care services at home, self-insurance is the best choice.
I can't imagine someone saving for their health care needs any more than I can imagine someone saving for the contingency of their house burning down. I can plan to pay for insurance. I cannot plan for the absolute unknown. I would have a hard time even crafting reasonable assumptions to base the plan on.