NADAC current and historical

Description

Exactly the same columns as NADAC historical pricing, but filtered to only include NADAC prices where last_price is true.

This is essentially the most recent price for each NDC.

There are columns to allow you to filter down to only last_price prices within 30, 60, 90, 180, and 365 days.

There is also a column that lets you filter on only pricing from the current release (is_from_current_release).

All pricing from NADAC with extra helper columns.

We deduplicate rows - mostly by ignoring the as_of column.

We add some useful helper columns:

end_date - when the price in this row ends (if historical)
is_first_price - is this the first price for this NDC?
is_last_price - is this the last price for this NDC?
dollar_change - the change in price from the previous price
percent_change - the change in price from the previous price
change_type - 1 if the price went up / 0 if no change / -1 if the price went down
a variety of columns for different lookbacks so it's easy to filter out older prices

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Data is updated quarterly for free.

Last updated: 5/28/25

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