The CMS Preclusion List, which names providers and prescribers who are precluded from receiving payment for Medicare Advantage (MA) items and services or Part D drugs furnished or prescribed to Medicare beneficiaries, identifies providers according to their Tax Identification Number (TIN) level. The list was created with three main goals: 1. To ensure that problematic prescribers do not receive payment for prescribing Part D drugs, 2. To reduce burdens on Part D and MA providers while maintaining program integrity and 3. To replace MA’s enrollment requirements.