Medicare Part A and B Premium Beneficiaries and Amounts

Six tables detail Medicare Part A and Part B premium beneficiaries, amounts, and penalties. The data includes yearly trends, demographic characteristics, Medicare-Medicaid enrollment status, and area of residence. It is published by the U.S. Department of Health & Human Services and was last updated in January 2026.

Use Cases

• Analyze yearly trends in Medicare Part A premium amounts and beneficiary counts from the MDCR PREMIUMS 1 table.
• Compare Part B premium amounts and penalty amounts across different demographic characteristics using the MDCR PREMIUMS 5 table.
• Map geographic variation in Part A premium beneficiaries by area of residence from the MDCR PREMIUMS 3 table.
• Assess the impact of Income Related Monthly Adjustment Amount (IRMAA) on Part B premium amounts using the IRMAA beneficiaries and amounts data.

Strengths

• Data is broken down across six distinct analytical tables for focused study.
• Includes specific metrics like standard base premium, reduced base premium, and penalty amounts.
• Published by the authoritative U.S. Department of Health & Human Services.
• Covers both Part A (Hospital Insurance) and Part B (Medical Insurance) premium data.

Limitations

• The exact row count, column names, and sample data are unavailable, hindering preliminary assessment of data structure and volume.
• Data is provided as a ZIP file without clear documentation on internal file formats or schema.
• No specific time range for the historical data is provided in the description.

Provenance

Source

U.S. Department of Health & Human Services, Centers for Medicare & Medicaid Services (CMS).

Collection Method

Administrative data compiled by CMS.

Freshness

Data was last updated on January 31, 2026.

Geography

National, with breakdown by area of residence (likely states/territories).