How Do You Obtain a Medicare PTAN?

A Medicare Administrative Contractor, or MAC, issues Medicare providers with a Provider Transaction Access Number, or PTAN, upon approval of their application, explains the Centers for Medicare & Medicaid Services. The PTAN is included in the MAC approval letter.

To get a copy of the PTAN, a provider can write to the MAC on company letterhead to request the number. The request must include the provider’s legal name or business name, the applicable National Provider Identifier, or NPI, and telephone and fax numbers, notes the Centers for Medicare & Medicaid Services.

Providers can also locate this number by logging into the Provider Enrollment, Chain, and Ownership

System at They can find the PTAN by clicking on My Enrollments. The Medicare ID Report, which is located under the enrollments option, lists all applicable PTANs and NPIs, according to the Centers for Medicare & Medicaid Services.

Providers have a single NPI but may have more than one PTAN. They should expect to have a different PTAN for every practice, group or MAC they work with that accepts Medicare, states CIPROMS. Medicare uses the PTAN to identify providers while they use tools from the local MAC. The PTAN is essential for checking application statuses and using other online systems; however, Medicare only requires the NPI to submit claims.