BUT MYTHS ARE STUBBORN STUFF:

I talked with Cavallaro, 60, after her CNBC appearance. Let's walk through what she told me.

Her current plan, from Anthem Blue Cross, is a catastrophic coverage plan for which she pays $293 a month as an individual policyholder. It requires her to pay a deductible of $5,000 a year and limits her out-of-pocket costs to $8,500 a year. Her plan also limits her to two doctor visits a year, for which she shoulders a copay of $40 each. After that, she pays the whole cost of subsequent visits.

This fits the very definition of a nonconforming plan under Obamacare. The deductible and out-of-pocket maximums are too high, the provisions for doctor visits too skimpy. 

As for a replacement plan, she says she was quoted $478 a month by her insurance broker, but that's a lot more than she'll really be paying. Cavallaro told me she hasn't checked the website of Covered California, the state's health plan exchange, herself. I did so while we talked. 

Here's what I found. I won't divulge her current income, which is personal, but this year it qualifies her for a hefty federal premium subsidy.

At her age, she's eligible for a good "silver" plan for $333 a month after the subsidy -- $40 a month more than she's paying now. But the plan is much better than her current plan -- the deductible is $2,000, not $5,000. The maximum out-of-pocket expense is $6,350, not $8,500. Her co-pays would be $45 for a primary care visit and $65 for a specialty visit -- but all visits would be covered, not just two. 

Is that better than her current plan? Yes, by a mile.

If she wanted to pay less, Cavallaro could opt for lesser coverage in a "bronze" plan. She could buy one from the California exchange for as little as $194 a month. From Anthem, it's $256, or $444 a year less than she's paying now. That buys her a $5,000 deductible (the same as she's paying today) but the out-of-pocket limit is lower, $6,350. Office visits would be $60 for primary care and $70 for specialties, but again with no limit on the number of visits. Factor in the premium savings, and it's hard to deny that she's still ahead.

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