Airline partners and global alliances. Alliances built around your needs. You can earn and use MileagePlus miles on more than 35 airlines worldwide. Select a Star Allianceâ¢ or MileagePlus partner airline below for more information about earning miles on flights operated by that airline.
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Since 2003, the Centers for Medicare and Medicaid. Services (CMS) has used the Provider Enrollment, Chain and Ownership System (PECOS) for physician. Medicare enrollment. In December 2008, CMS launched. the internet-based PECOS, an online provider-. enrollment system that allows physicians, non-physician. practitioners and providers, and supplier organizations.