By Susan Jaffe   At least a quarter of a million Medicare beneficiaries may receive bills for as many as five months of premiums they thought they already paid. But they shouldn’t toss the letter in the garbage. It’s not a scam or a mistake.   Because of what the

CVS Health is making the case for its merger with Aetna to two very different audiences beginning June 3. CVS held its annual investor day and issued a long-term strategic plan to “accelerate growth” ahead of the day’s proceedings, aimed at nervous investors concerned about its recent financial performance post-merger. CVS warned that it