Monthly Prescription Drug Plan Formulary and Pharmacy Network Information

Principal Investigator(s):  View help for Principal Investigator(s) Centers for Medicare & Medicaid Services

Version:  View help for Version V1

Name File Type Size Last Modified
2026_20260219.zip application/zip 2.2 GB 03/07/2026 05:05:AM
AGREEMENT-FOR-USE.pdf application/pdf 118.9 KB 03/04/2026 08:11:AM
Methodology-PUF-2026.pdf application/pdf 118.5 KB 03/04/2026 08:11:AM
Monthly_Medicare_Drug_Plan_&_Pharmacy_Network_Data_CMS_Data.pdf application/pdf 600.7 KB 03/04/2026 08:11:AM
PUFRecordLayout-2026.pdf application/pdf 232.7 KB 03/04/2026 08:07:AM

Project Citation: 

Centers for Medicare & Medicaid Services. Monthly Prescription Drug Plan Formulary and Pharmacy Network Information. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2026-03-07. https://doi.org/10.3886/E246802V1

Project Description

Project Title:  View help for Project Title Monthly Prescription Drug Plan Formulary and Pharmacy Network Information
Summary:  View help for Summary The Monthly Prescription Drug Plan Formulary and Pharmacy Network Information files contain formulary and pharmacy network data for Medicare Prescription Drug Plans and Medicare Advantage (MA) Prescription Drug Plans (with the exception of employer and Program of All-Inclusive Care for the Elderly plans).   These non-identifiable files are available on a monthly basis and are comprised of the following tables:
  • Plan Information - Information such as plan name, contract ID, plan ID, service area, and plan type.
  • Geographic Locator - MA and Prescription Drug Plans region codes and county codes.
  • Basic Drugs Formulary - Formulary details for each plan including National Drug Codes (NDCs), cost share tier level, and indicators for step therapy, quantity limits, prior authorization, and a newly added Selected Drug flag.
  • Excluded Drugs Formulary - Enhanced alternative plans may elect to provide a supplemental benefit and cover excluded drugs. File includes formulary details for excluded drugs that are covered by the plan (for enhanced alternative plans only).
  • Beneficiary Cost - Plan level cost sharing details for preferred, non-preferred, and mail order network pharmacies.
  • Pharmacy Network - National Provider Identifier (NPI) numbers for each network pharmacy including preferred, retail, and mail order indicators, and brand, generic, and selected drug dispensing fees for 30/60/90 days supply, respectively.
  • Indication Based Coverage Formulary File - Includes drugs covered based on FDA-approved indication for each plan.
  • Insulin Beneficiary Cost File - Plan level copay and coinsurance amounts for insulin at preferred, non-preferred and mail order network pharmacies.
  These are large files and can take time to download. 
  Please read the “Agreement for Use” in the Resources section below. This document contains important information regarding timeframes for obtaining data as well as data accuracy and integrity.   The Quarterly Prescription Drug Plan Formulary, Pharmacy Network, and Pricing Information is also available to access for the quarterly level information.    Please note: The Part D benefit year information for plans become available in October of the year prior. For example, year 2026 data is available in the October, November and December 2025 monthly files. Year 2026 data continues to be available in the January through September 2026 monthly files, then beginning in October of 2026 year 2027 data becomes available. Estimated release dates for upcoming 2026 monthly data (files reflect data for the month in which the file is released):
  • 3/25/26
  • 4/22/26
  • 5/20/26
  • 6/17/26
  • 7/29/26
  • 8/26/26
  • 9/23/26
Files older than contract year 2019 can be purchased.
Original Distribution URL:  View help for Original Distribution URL https://data.cms.gov/provider-summary-by-type-of-service/medicare-part-d-prescribers/monthly-prescription-drug-plan-formulary-and-pharmacy-network-information

Scope of Project

Subject Terms:  View help for Subject Terms Medicare; Medicare Advantage; Medicare Prescription Drug; All Other Provider Care Types; Drugs; Health Care Use & Payments
Collection Notes:  View help for Collection Notes (Downloaded 2026-03-04)


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Published Versions

V1 [2026-03-07]

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