data.medicaid.govHand-written summary
NADAC (National Average Drug Acquisition Cost)
Weekly National Average Drug Acquisition Cost (NADAC) reference prices, one file per calendar year.
Freshness
- Last posted
- Period covered
- Update frequency
Dates as CMS lists them in its catalog.
Before you use it
- Each year is a separate file on data.medicaid.gov. The newest year is linked here and older years are listed under versions.
Columns 12
| Column | What it means | Type |
|---|---|---|
NDC Descriptionndc_description | Identifies the drug name, strength, and dosage form of the drug product. | string |
NDCndc | The 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 |
NADAC Per Unitnadac_per_unit | The National Average Drug Acquisition Cost per unit. | number |
Effective Dateeffective_date | The effective date of the NADAC Per Unit cost. | date |
Pricing Unitpricing_unit | Indicates the pricing unit for the associated NDC ('ML', 'GM 'or 'EA'). | string |
Pharmacy Type Indicatorpharmacy_type_indicator | The source of pharmacy survey data used to calculate the NADAC. 'C/I' indicates data was collected from surveys of Chain/Independent pharmacies. Other pharmacy type indicators are not used at this time. | string |
OTCotc | Indicates whether or not the NDC is for an over-the-counter (OTC) product ('Y' or 'N'). | string |
Explanation Codeexplanation_code | Codes that pertain to how the NADAC was calculated; see explanation code descriptions below. Code 1: The NADAC was calculated using information from the most recently completed pharmacy survey. Code 2: The average acquisition cost of the most recent survey was within ± 2%of the current NADAC; therefore, the NADAC was carried forward from the previous file. Code 3: The NADAC based on survey data has been adjusted to reflect changes in published pricing, or as a result of an inquiry to the help desk. Code 4: The NADAC was carried forward from the previous file. Code 5: The NADAC was calculated based on package size. Code 6: The CMS Covered Outpatient Drug Product File drug category type of 'S/I/N' (Single Source/Innovator/Non-Innovator) has not been applied. Most 'S/I' drugs with the same strength, dosage form and route of administration were grouped together for the purpose of the NADAC calculation and 'N' drugs were also grouped together. In some cases, however, in calculating a NADAC, the CMS 'S/I/N' designation was not applied when the State Medicaid brand or generic payment practices for these drugs generally differed from the Covered Outpatient Drug Product File designation. For example, authorized generic drugs are appropriately listed in the CMS covered outpatient drug file as I drugs for the purpose of rebates as they were approved under a New Drug Application (NDA). However, they are grouped as 'N' for the NADAC calculation since they are generally designated as generic by most State Medicaid programs for the purposes of reimbursement. Another example of this occurrence is when proprietary named drugs, approved under an Abbreviated New Drug Application (ANDA) are appropriately in the CMS Covered Outpatient Drug file as 'N' for the purpose of rebates. However, they are grouped as 'S/I' for the NADAC calculation since they are generally reimbursed as brand drugs by State Medicaid programs. Codes 7 through 10: Reserved for future use. | string |
Classification for Rate Settingclassification_for_rate_setting | Indicates 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 |
Corresponding Generic Drug NADAC Per Unitcorresponding_generic_drug_nadac_per_unit | The NADAC for the corresponding generic drug. | string |
Corresponding Generic Drug Effective Datecorresponding_generic_drug_effective_date | The effective date of when the Corresponding Generic Drug NADAC Per Unit is assigned to a multiple source brand drug NDC. This date may not correspond to the NADAC effective date for the generic drug due to the method by which the corresponding generic drug NADAC effective date is assigned. The corresponding generic drug NADAC effective date is the latter of the following dates: a) date of the NADAC reference file upon which the corresponding generic drug NADAC first appears, b) the current corresponding generic drug NADAC effective date plus one day - one day is added to the previous date so that there are no overlapping rate segments, or c) the NADAC Effective Date for the generic drug group. This data assignment process is necessary to eliminate the potential for applying corresponding generic drug NADACs to past claims. | date |
As of Dateas_of_date | date |
No column matches that filter.
At a glance
- Catalog
- data.medicaid.gov
- Publisher
- Centers for Medicare & Medicaid Services (CMS), data.medicaid.gov
- Rows
- 1,268,309
- Columns
- 12
- State column
- None found
- 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/fbb83258-11c7-47f5-8b18-5f8e79f7e704/0?limit=10
Versions 14
The newest version is the one linked above. Older releases stay on the official site.
CMS's description
National Average Drug Acquisition Cost (NADAC) weekly reference data for the calendar year.
The summary at the top was written by hand from this description. Record id mcd:fbb83258-11c7-47f5-8b18-5f8e79f7e704. This record as JSON.