Medicare Part B Spending by Drug

The Medicare Part B by Drug dataset presents information on spending for drugs administered in doctors’ offices and other outpatient settings by physicians and other healthcare providers to Medicare Part B enrollees. 

The dataset focuses on average spending per dosage unit and change in average spending per dosage unit over time. It also includes consumer-friendly descriptions of the drug uses, clinical indications, and manufacturer(s).

Drug spending metrics for Part B drugs represent the full value of the product, including the Medicare payment and beneficiary liability. All Part B drug spending metrics are calculated at the HCPCS level.

Data and Resources

Field Value
accessLevel public
accrualPeriodicity R/P1Y
bureauCode {009:38}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://healthdata.gov/data.json
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
dataQuality true
describedBy https://data.cms.gov/resources/medicare-part-b-spending-by-drug-data-dictionary
identifier https://data.cms.gov/data-api/v1/dataset/76a714ad-3a2c-43ac-b76d-9dadf8f7d890/data-viewer
issued 2021-12-22
landingPage https://data.cms.gov/summary-statistics-on-use-and-payments/medicare-medicaid-spending-by-drug/medicare-part-b-spending-by-drug
language {en-US}
license https://www.usa.gov/government-works
modified 2025-05-29
programCode {009:000}
publisher Centers for Medicare & Medicaid Services
references {https://data.cms.gov/resources/medicare-part-b-spending-by-drug-methodology}
resource-type Dataset
source_datajson_identifier true
source_hash ce666689c5f100589698fee1f98eaa09289c4eeaed7efa7cf0c7d53fb8b24cab
source_schema_version 1.1
temporal 2023-01-01/2023-12-31
theme {Medicare}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • drugs
  • medicare
  • original-medicare
isopen False
license_id other-license-specified
license_title other-license-specified
maintainer CMS Drug Spending - OEDA
maintainer_email IPAG_Data_Products@cms.hhs.gov
metadata_created 2025-09-25T16:04:53.515026
metadata_modified 2025-09-25T16:04:53.515037
notes The Medicare Part B by Drug dataset presents information on spending for drugs administered in doctors’ offices and other outpatient settings by physicians and other healthcare providers to Medicare Part B enrollees.  The dataset focuses on average spending per dosage unit and change in average spending per dosage unit over time. It also includes consumer-friendly descriptions of the drug uses, clinical indications, and manufacturer(s). Drug spending metrics for Part B drugs represent the full value of the product, including the Medicare payment and beneficiary liability. All Part B drug spending metrics are calculated at the HCPCS level.
num_resources 3
num_tags 11
title Medicare Part B Spending by Drug