Health Workforce Advisory Commission Act of 2005 - Directs the Comptroller General to establish the Health Workforce Advisory Commission to analyze health workforce policy issues, including by: (1) reviewing Federal health workforce policies; (2) analyzing and making recommendations to improve the methods used to measure and monitor the health workforce; (3) reviewing the impact of such policies on the ability of the health care system to provide optimal medical and health care services; (4) analyzing and making recommendations pertaining to Federal incentives and programs that promote the education of health professionals; (5) analyzing the role and global implications of internationally trained health professionals and personnel in the U.S. workforce; and (6) making recommendations to Congress concerning health workforce policy issues.