Medicare Part B premiums vary based on beneficiary’s income and can change each year. For current rates visit the Medicare Cost site.
Each year, Social Security sends a letter to people collecting Social Security benefits (and those who pay higher premiums because of their income) stating each person’s exact Part B premium.
You can get details at Medicare.gov or by calling 1-800-MEDICARE (1-800-633-4227) (TTY 1-877-486-2048).
For more information about higher premiums go to the Medicare Premiums: Rules for Higher-Income Beneficiaries page.