Medicare Advantage plans now cover slightly more than half of American seniors in the Medicare program. The attraction is in both the low costs and the additional services they advertise. But

Medicare regulators want beneficiaries to be told explicitly about some potential risks of signing up for Medicare Advantage plans instead of original Medicare.

Before signing up for one of the best Medicare Advantage plans, compare costs, coverage, customer satisfaction, and more. Expert picks include Cigna, Aetna, and Kaiser Permanente.

A New York health insurer and a former top executive of its subsidiary agreed to pay up to $100 million to resolve a long-running whistleblower lawsuit alleging that the company defrauded Medicare by exaggerating how sick patients on its plans were.