One national study found that previously uninsured adults obtaining Medicare at age 65 had higher total medical costs and greater use of health services than similar Medicare beneficiaries who were previously insured.

One national study found that previously uninsured adults obtaining Medicare at age 65 had higher total medical costs and greater use of health services than similar Medicare beneficiaries who were previously insured.[1]



[1] McWilliams JM, Meara E, Zaslavsky AM, & Ayanian JZ.  “Use of Health Services by Previously Uninsured Medicare Beneficiaries.” New England Journal of Medicine 357 (2): 143 – 153.  July 12, 2007.