Nassau County audit finds 94 retirees double-dipped Medicare Part B premiums, $1.6M lost

The Nassau County audit (Review of Nassau County Retiree Medicare Reimbursements, available at nassaucountyny.gov/DocumentCenter/View/53259/Review-of-Medicare-Reimbursements) found that more than 90 retirees improperly double-dipped Medicare Part B premium reimbursements, costing the county $1.6 million over two decades. Both Newsday and the New York Post reported the story, and the full audit document confirms the 94 retirees and $1.658 million figure. The key breakdown: no automated system exists to flag when a retiree and a spouse both claim reimbursement for the same person's Part B premiums.

This is not a federal policy problem, but it reveals a solvable federal data gap. CMS has the Medicare enrollment and Part B premium data; local governments administer their own retiree health benefits, and the two systems do not talk to each other. The solution—already within CMS's existing fraud-prevention authority—is for CMS to offer state and local governments a voluntary, secure data-matching service that cross-references retiree benefit claims against Medicare enrollment records. The cost would be a small fraction of the recoverable improper payments, and it would preserve retiree benefits without imposing new burdens on beneficiaries.