CMS is hosting a national provider conference call on the 2011 Physician Quality Reporting System and Electronic Prescribing (eRx) Incentive Program on May 17, 2011. The presentation will cover: Highlights of the 2009 Physician Quality Reporting System and Electronic Prescribing Experience Report; Measures vs. Measures Groups; and Understanding Measure Numerator and Measure Denominator. A question-and-answer period will follow the formal presentation. The registration deadline for the call is May 16.