Which manufacturers and drugs are subject to 340B pricing, and can participating manufacturers offer only a subset of the drugs they manufacture at 340B prices?

Manufacturers who participate in Medicaid are required to participate in the 340B Program and provide a 340B ceiling price for all covered outpatient drugs. To view which manufacturers participate in the 340B Program, please visit the 340B OPAIS Search page. A 340B participating manufacturer must provide a 340B price on all the covered outpatient drugs that meet the definition in Section 1927(k) of the Social Security Act.