Turning 65

As a standard condition of your retirement, the County of San Mateo requires that you or your eligible dependents enroll in Medicare Part A and Part B when you turn 65.

  • 3 MONTHS BEFORE YOUR 65th BIRTHDAY - Visit your local Social Security office and enroll in Medicare Part A and Part B
  • Upon Receipt of your Medicare Card: Mail the completed Retiree Change Form application with a copy of your new Medicare Card to the Benefits Division.

Please note: The Social Security award letter will not be accepted as proof of enrollment and the Medicare card must accompany your completed application.