data.medicaid.gov

NADAC Comparison

The NADAC Weekly Comparison identifies the drug products with current NADAC rates that are replaced with new NADAC rates.

Freshness

Last posted
Period covered
Update frequency

Dates as CMS lists them in its catalog.

Columns 10

ColumnWhat it meansType
NDC Descriptionndc_descriptionIdentifies the drug name, strength, and dosage form of the drug product.string
NDCndcThe National Drug Code (NDC) is a numerical code maintained by the FDA that includes the labeler code, product code, and package code. The NDC is an 11-digit code.string
Old NADAC Per Unitold_nadac_per_unitThe National Average Drug Acquisition Cost per pricing unit from the previous NADAC reference file.string
New NADAC Per Unitnew_nadac_per_unitThe National Average Drug Acquisition Cost per pricing unit from the current NADAC reference file.string
Classification for Rate Settingclassification_for_rate_settingIndicates whether the NDC was considered brand ('B') or generic ('G') for the NADAC rate calculation process. If the NDC was considered brand ('B') and approved under an Abbreviated New Drug Application (ANDA), the indicator is shown as ('B-ANDA'). NDCs approved as biosimilar products are considered brand ('B') and will be designated as ('B-BIO').string
Percent Changepercent_changeThe difference between the New NADAC Per Unit and the Old NADAC Per Unit, divided by the Old NADAC Per Unit.string
Primary Reasonprimary_reasonDescribes the primary reason for the NADAC Per Unit change, see explanation below for each reason: • Survey Rate: The NADAC Per Unit has been updated using information from the most recently completed pharmacy survey. • WAC Adjustment: The NADAC Per Unit has been updated to reflect changes in published pricing. • Help Desk Adjustment: The NADAC Per Unit has been updated as a result of an inquiry to the help desk. • Brand Generic Change: The NADAC Per Unit has been updated as a result of a change in the Classification for Rate Setting. • Rate Group Change: The NADAC Per Unit has been updated due to placement into a new NADAC drug grouping because of a change in the NDC attributes.string
Start Datestart_dateThe start date indicates the initial NADAC file utilized in the comparison.date
End Dateend_dateThe end date indicates the latest date NADAC file utilized in the comparisondate
Effective Dateeffective_dateThe effective date indicates the new effective date for the NADAC rate.date

At a glance

Catalog
data.medicaid.gov
Publisher
Centers for Medicare & Medicaid Services (CMS), data.medicaid.gov
Rows
3,492,310
Columns
10
State column
None found
Topics
Prescription drugs, Spending and use of services
Contact
Medicaid.gov@cms.hhs.gov

API

Free, no key needed. This request returns the first 10 rows as JSON:

https://data.medicaid.gov/api/1/datastore/query/a217613c-12bc-5137-8b3a-ada0e4dad1ff/0?limit=10

CMS's description

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

The summary at the top is the first sentence of this description. Record id mcd:a217613c-12bc-5137-8b3a-ada0e4dad1ff. This record as JSON.

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