This paper sets out the challenges HIPAA can pose to conducting research in practice-based settings and clearly outlines 3 methods for addressing those challenges for researchers working in these settings. Click here to download.
Pace WD, Staton EW, and Holcomb S. Practice-Based Research Network Studies in the Age of HIPAA. Annals of Family Medicine, May 2005; 3: S38 - S45.  http://www.annfammed.org/cgi/reprint/3/suppl_1/s38.pdf