Kevin C. Johnson

KEVIN C. JOHNSON, a Director since May 1996, is President and Chief
Executive Officer of DIANON Systems, Inc. of Stratford, Connecticut.
Mr. Johnson joined DIANON as President in May 1996, and was appointed to
the additional position of Chief Executive Officer in February 1997.
Formerly, Mr. Johnson was with Corning Inc., a manufacturer of specialty
materials and a provider of laboratory services, for 18 years, serving
most recently as a Vice President and General Manager of Corning
Clinical Laboratories (CCL) headquartered in Teterboro, New Jersey. CCL
was subsequently spun off from Corning to become Quest Diagnostics, an
independent $3 billion clinical laboratory. He is a graduate of St.
John’s University in New York City.