The Pediatric Lead Assessment Network Education Training Program (PLANET) is a peer-to-peer in-person 1-hr lead poisoning prevention educational program for health professionals. This evaluation was designed to determine the impact of the PLANET program. Evaluation methods included analyzing data from PLANET sign-in sheets, evaluation forms, pre/postknowledge tests, claims data, and focus groups (FGs) and interviews (IVs) with PLANET attendees and nonattendees. Claims data were used to compare blood lead testing rates for physicians attending and those not attending a PLANET program. Over 2,000 health professionals attended the 192 PLANET presentations delivered between June 2001 and December 2006; most were registered nurses or physicians. Written evaluations were overwhelmingly positive. Posttests indicated increased provider knowledge about childhood lead poisoning prevention, and assessment of blood lead testing rates showed higher testing rates for PLANET attendees. FG and IV participants suggesting improvements including using alternative delivery modes.