Asia-Pacific Economic Cooperation, or APEC, is the premier forum for facilitating economic growth, cooperation, trade and investment in the Asia-Pacific region.
Provider Transaction Access Number (PTAN) A PTAN is a Medicare-only number issued to providers by MACs upon enrollment to Medicare. When a MAC approves enrollment and issues an approval letter, the letter will contain the PTAN assigned to the provider.
Citations. 1  MLA style: PTAN.. 2  Acronym Finder. 2015. 3  AcronymFinder.com 13 Oct. 2015 http://www.acronymfinder.com/Provider-Transaction-Access-Number-(medicare-reimbursements)-(PTAN).html. 4  Chicago style: Acronym Finder.