As a result of recently enacted legislation that establishes a 2.2 percent update to the Medicare Physician Fee Schedule (MPFS) through November 20, 2010, the Centers for Medicare & Medicaid Services (CMS) is now offering physicians and other practitioners, whose current participation status is non-participating, an opportunity to become participating (PAR), available now through July 16, 2010. This comes on the heels of the enactment of the Preservation of Access to Care for Medicare Beneficiaries and Pension Relief Act of 2010 that established the 2.2 percent update.Any new Medicare Participating Physician or Supplier Agreement (Form CMS-460) received during this limited enrollment period will be retroactive for claims with dates of service of January 1, 2010, and later. However change in participation status will only apply to new MPFS claims submitted after your new status is processed. Download and complete the Medicare Participating Physician or Supplier Agreement (Form CMS-460). Medicare Administrative Contractors and carriers will accept and process requests to become a participating physician/practitioner that are submitted on the CMS-460 form and are post-marked on or before July 16, 2010.