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    • NADAC Comparison

    Metadata Updated: March 11, 2026

    The NADAC Weekly Comparison identifies the drug products with current NADAC rates that are replaced with new NADAC rates. Other changes (e.g. NDC additions and terminations) to the NADAC file are not reflected in this comparison.

    Note: Effective Date was not recorded in the dataset until 6/7/2017

    Access & Use Information

    Public: This dataset is intended for public access and use. License: See this page for license information.

    Downloads & Resources

    Dates

    Metadata Created Date October 8, 2021
    Metadata Updated Date March 11, 2026
    Data Update Frequency R/P10Y

    Metadata Source

    Harvested from Healthdata.gov

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date October 8, 2021
    Metadata Updated Date March 11, 2026
    Publisher Centers for Medicare & Medicaid Services
    Maintainer
    Identifier a217613c-12bc-5137-8b3a-ada0e4dad1ff
    Data First Published 2015-08-19
    Data Last Modified 2026-03-10
    Category Drug Pricing and Payment
    Public Access Level public
    Data Update Frequency R/P10Y
    Bureau Code 009:38
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://healthdata.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id a106345b-fdd7-405d-a144-55c2c120ade2
    Harvest Source Id 651e43b2-321c-4e4c-b86a-835cfc342cb0
    Harvest Source Title Healthdata.gov
    Homepage URL https://healthdata.gov/d/47ta-vew3
    License https://www.usa.gov/government-works
    Program Code 009:000
    Source Datajson Identifier True
    Source Hash a27fa0459d6722b50fd187d380c735f8b22fad070e96f65c3c8bb3bcb4d8f1e9
    Source Schema Version 1.1

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