The most recent (May 2014) Medicare Part D plan formulary data (or drug lists) updates include the addition of
285 new National Drug Codes (NDC) to the Medicare Part D program. These represent 170 different drugs, many with multiple strengths or delivery forms. This blog details the 54 new generic equivalents that were added to one or more Medicare Part D formularies.
The NDC uniquely identifies a particular drug, manufacturer, strength, and packaging combination. The NDC is often shown on your prescription bottle as an 11-digit code (see the charts below) or could be formatted as 00000-0000-00 where the first set of numbers identifies the manufacturer, the second set of number identifies the product and strength, and the third set of numbers identifies the packaging.