David is the Manager of Medical Ontology for the Radiological Society of North America.  In this position he works with the creation and application of controlled vocabularies for such diverse projects as semantic enrichment, data warehousing, and structured reporting.

David has been the library director for the William D. Block Memorial Law Library, Nineteenth Judicial Circuit, State of Illinois and for the Skokie branch campus of Sanford-Brown College.   He has done indexing/taxonomy work for The Philosopher’s Index, Commerce Clearing House, Inc., the American Bar Association, and Lexis-Nexis.

In 1998 David’s work at the Block Library saw the library named Library of the Year by the North Suburban Library System (NSLS), the first non-public library to earn that distinction.  David was also named Special Library Staff Member of the Year by the NSLS in 2000.  He is also a certified Court Management  Professional from the National Center for State Courts.