From Follow-up on the Accuracy of the Social Security Administration’s Manual Billing Process to Collect Medicare Premiums, a report by Social Security's Office of Inspector General:
... When a Medicare Part B recipient receives a monthly Social Security benefit, SSA deducts the monthly Medicare premium from the benefit. Some individuals’ monthly Social Security benefit is lower than the monthly Medicare premium. SSA bills these individuals for the balance of the premium. Each year, SSA uses its Benefit Rate Increase (BRI) program to generate an alert for individuals whose Social Security benefit is lower than their monthly Medicare premium. SSA considers this alert to be a high priority because SSA must bill beneficiaries the remaining Medicare premium as soon as possible and timely issue benefit statements.
In a 2016 report on the Accuracy of the Social Security Administration’s Manual Billing Process to Collect Medicare Premiums, we concluded SSA incorrectly calculated the Medicare premium owed for 48 percent of the sampled beneficiaries we reviewed. For this audit, we reviewed a random sample of 100 beneficiaries from a population of 111,976 beneficiaries SSA’s BRI program identified in November 2022.
SSA timely processed the cases in our sample; however, it incorrectly processed or calculated the Medicare premium owed for 73 of the 100 beneficiaries we reviewed where their Medicare premium was higher than their SSA benefit payments. This included approximately $147,000 in processing errors where employees did not correctly credit monthly benefits to Medicare billing information and $102,000 in payment errors where beneficiaries were not correctly billed for Medicare premiums, which led to overages and arrearages.
Based on the results for our sample, we project SSA did not correctly update records or calculate Medicare premiums owed for approximately 82,000 beneficiaries, which resulted in approximately $76 million in billing errors and $91 million in processing errors. ...
