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GeraClinic / Data / US Medicare drug spending

Medicare Part D Drug Spending (United States)

Average Medicare Part D spending per dosage unit for the most-claimed prescription drugs in the United States, from the U.S. Centers for Medicare & Medicaid Services (CMS). The figure is the weighted average Medicare spend per dosage unit β€” not a retail or cash price, and not a per-prescription cost.

100 drugs Β· U.S. Centers for Medicare & Medicaid Services (CMS) Β· U.S. Government Works / Public Domain

Key figures

100
Drugs covered
2024
Data year
Atorvastatin Calcium
Most-claimed drug
73,349,032 Part D claims (2024)
Avg spend / dosage unit
Metric
USD, Medicare-weighted

Download & cite

This dataset is available as machine-readable JSON β€” including provenance, columns, key figures and a verbatim sample of rows β€” and as a spreadsheet-ready CSV sample, for researchers, journalists and AI assistants. Every figure traces to the source below.

Download JSON summaryDownload CSV sampleOriginal source

Methodology

The headline metric is Avg_Spnd_Per_Dsg_Unt_Wghtd_2024 (weighted avg spending per dosage unit, USD), taken verbatim from the CMS Medicare Part D Spending by Drug release. Average Medicare Part D spending per dosage unit, not a retail/cash price or per-prescription cost. For information only; not medical advice.

How this snapshot is prepared & verified

  1. Source. Retrieved from CMS Medicare Part D Spending by Drug (U.S. Centers for Medicare & Medicaid Services (CMS)), the official publisher, under the U.S. Government Works / Public Domain. Reference period: data year 2024.
  2. Verbatim capture. Every figure shown here is copied from, or computed directly from, that snapshot β€” nothing is estimated, rounded away or hand-entered.
  3. Verification. Column values are checked against the published source before release, and the licence and attribution are preserved exactly as issued.
  4. Re-publication. The snapshot is exposed as a citable page plus JSON and CSV downloads so it stays independently verifiable and quotable.

The JSON summary and CSV export contain a verbatim sample of the snapshot with full provenance. The complete dataset is available from the original source linked above.

Sample rows

A verbatim sample from the verified snapshot. Full data is in the JSON summary and on the source page.

drugavgSpendPerDosageUnitUSDpartDClaims2024
Atorvastatin Calcium0.14573,349,032
Amlodipine Besylate0.08550,204,110
Levothyroxine Sodium0.16943,253,940
Gabapentin0.11936,804,628
Lisinopril0.08936,247,459
Losartan Potassium0.12636,240,406

Provenance

Source:
CMS Medicare Part D Spending by Drug
Publisher:
U.S. Centers for Medicare & Medicaid Services (CMS)
Coverage:
United States β€” Medicare Part D
As of:
data year 2024
Licence:
U.S. Government Works / Public Domain

Source: U.S. Centers for Medicare & Medicaid Services (CMS), CMS Medicare Part D Spending by Drug (release year 2026, data year 2024). U.S. Government Works / Public Domain. Re-published by GeraClinic at https://geraclinic.com/data/us-medicare-drug-prices.

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