If you have creditable prescription drug coverage that is equal or better than Medicare Part D, you can choose to not enroll in Medicare Part D. You can also choose to simply enroll in Medicare Part D later.
This can be the case if you have Veterans Affairs (VA) health care or Tricare for Life.
If you have any questions about Medicare coverage or enrollment, please contact Medicare at any time at 1-800-MEDICARE (1-800-633-4227; TTY users 1-877-486-2048).