CMS Data Research Catalog

Comprehensive catalog of CMS Data Research Dataset tables

Browse available CMS Research Data tables below. Each entry includes description and metadata.

Last Updated: 10/21/2025

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Benefits Data - Covered Services

Medicare Advantage covered services including medical benefits, supplemental benefits, preventive services, and utilization management requirements

Coverage: 2019-01-01 to 2026-01-01 · Files: 338 · Updated: 2025-10-31

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Benefits Data - Inpatient Hospital (Acute)

Medicare Advantage inpatient acute hospital stay benefit details including copays, coinsurance, deductibles, and prior authorization requirements (PBP B1A)

Coverage: 2002-01-01 to 2026-01-01 · Files: 37 · Updated: 2026-04-10

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Benefits Data - Inpatient Hospital (Psychiatric)

Medicare Advantage inpatient psychiatric hospital stay benefit details including copays, coinsurance, deductibles, and prior authorization requirements (PBP B1B)

Coverage: 2002-01-01 to 2026-01-01 · Files: 37 · Updated: 2026-04-10

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Benefits Data - Part D Drug Coverage

Medicare Part D prescription drug coverage details including formulary tiers, cost sharing, deductibles, coverage phases, and pharmacy networks

Coverage: 2019-01-01 to 2026-01-01 · Files: 131 · Updated: 2025-10-31

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Benefits Data - Plan Information

Medicare Advantage and Part D Plan Information including plan names, service areas, contact information, SNP details, and enrollment data

Coverage: 2019-01-01 to 2026-01-01 · Files: 19 · Updated: 2025-10-31

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Benefits Data - Premiums & Deductibles

Medicare Advantage and Part D premium amounts, deductibles, out-of-pocket maximums, and cost-sharing structures by plan

Coverage: 2019-01-01 to 2026-01-01 · Files: 114 · Updated: 2025-10-31

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Enrollment by Contract

Provides monthly enrollment for each contract.

Coverage: 2006-08-01 to 2026-06-01 · Files: 239 · Updated: 2026-06-14

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MA Contract Service Area

Provides contract service area by state and county for all organization types except for PDP and employer-direct PDP.

Coverage: 2006-11-01 to 2026-06-01 · Files: 236 · Updated: 2026-06-16

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MA Enrollment by SCC

Provides monthly enrollment at the state/county/contract level for all organization types except for PDP and employer-direct PDP.

Coverage: 2006-11-01 to 2026-06-01 · Files: 236 · Updated: 2026-06-14

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MA Enrollment by SCP

Provides the monthly enrollment at the state/county/plan type (Plan Benefit Package type) for all organization types except for PDP and employer-direct PDP organizations.

Coverage: 2016-11-01 to 2026-06-01 · Files: 113 · Updated: 2026-06-14

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MA State/County Penetration

Provides MA market penetration rates at the state/county level.

Coverage: 2008-07-01 to 2026-06-01 · Files: 216 · Updated: 2026-06-14

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Monthly Enrollment by CPSC (contract)

Provides monthly enrollment at the contract/plan/state/county level for all organization types.

Coverage: 2006-07-01 to 2026-07-01 · Files: 240 · Updated: 2026-07-12

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Monthly Enrollment by CPSC (enrollment)

Provides monthly enrollment at the contract/plan/state/county level for all organization types.

Coverage: 2006-07-01 to 2026-07-01 · Files: 241 · Updated: 2026-07-12

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Monthly Enrollment by Plan

Provides monthly enrollment at the contract/plan level for all organization types.

Coverage: 2007-07-01 to 2026-06-01 · Files: 219 · Updated: 2026-06-14

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Monthly Enrollment by State

Provides monthly the number of Medicare members (eligibles), MA enrolled, Other enrolled and PDP enrolled for each state.

Coverage: 2016-10-01 to 2026-06-01 · Files: 116 · Updated: 2026-06-14

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PDP Contract Service Area

Provides contract service area by state and county for PDP and employer-direct PDP organizations.

Coverage: 2007-03-01 to 2026-06-01 · Files: 229 · Updated: 2026-06-16

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PDP Enrollment by SCC

Provides monthly enrollment at the state/county/contract level for PDP and employer-direct PDP organizations.

Coverage: 2007-02-01 to 2026-06-01 · Files: 235 · Updated: 2026-06-14

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PDP Enrollment by SCP

None

Coverage: 2016-10-01 to 2026-07-01 · Files: 118 · Updated: 2026-07-12

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PDP State/County Penetration

Provides PDP market penetration rates at the state/county level.

Coverage: 2008-07-01 to 2026-06-01 · Files: 215 · Updated: 2026-06-14

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Part C&D Plan Crosswalk

Provides the list of annual plan crosswalks for all organization types.

Coverage: 2006-01-01 to 2026-01-01 · Files: 17 · Updated: 2025-11-20

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SNP Comprehensive Report

Provides monthly plan enrollment for each SNP and provides totals by SNP type.

Coverage: 2007-06-01 to 2026-06-01 · Files: 229 · Updated: 2026-06-16

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State Service Area

Provides the list of states covered in whole or in part by each contract.

Coverage: 2006-09-01 to 2026-06-01 · Files: 234 · Updated: 2026-06-16

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