Medicare Beneficiary COVID-19 Vaccination Coverage by Race and Season

Weekly cumulative COVID-19 vaccination coverage estimates for Medicare Fee-For-Service beneficiaries aged 65 years and older, calculated using Kaplan-Meier survival analysis. The data is managed by the Centers for Medicare & Medicaid Services (CMS) and published via data.cdc.gov, with the latest update in March 2026. Coverage is broken down by race, ethnicity, and COVID-19 season.

Use Cases

• Analyze temporal trends in vaccination coverage by `Race and ethnicity` and `COVID-19_Season` using the `Week Ending` and `MMWR_Week` columns.
• Compare weekly `Estimate` values across different demographic groups to assess disparities in vaccine uptake.
• Track the progression of cumulative coverage within a specific season using the `Current_Season_Week_Ending_Label`.
• Validate or model vaccination rates for the 65+ population using the `Enrollment Date` as a cohort anchor point.

Strengths

• Data is updated weekly, with the latest platform update on 2026-03-25.
• Estimates are derived from administrative claims data for the entire U.S. Medicare Fee-For-Service population aged 65+.

Limitations

• The dataset is limited to Medicare Fee-For-Service beneficiaries and does not include those in Medicare Advantage plans.
• Sample size and row count are unknown, limiting assessment of statistical granularity.

Provenance

Source

Centers for Medicare & Medicaid Services (CMS) administrative claims data, published via data.cdc.gov.

Collection Method

Weekly estimates calculated using Kaplan-Meier survival analysis on beneficiary enrollment and vaccination claim data.

Time Range

Coverage by COVID-19 season, with specific weekly data from at least the 2025-26 season onward.

Freshness

Updated weekly.

Geography

United States (Medicare Fee-For-Service beneficiaries).