David W. Cragin PhD

David Cragin, PhD

David W. Cragin PhD

Adjunct Associate Professor of Health Policy and Public Health


PhD (University of California) BS (University of Rhode Island)


Dr. Cragin’s research interests focus on risk assessment and decision-making. He is Associate Director of Chemical Notification and Registration for Merck & Co.  For more than 10 years, he has taught the graduate course called “Risk assessment, Critical thinking and Health” as an Adjunct Professor of Health Policy and Public Health for the University of the Sciences, Philadelphia.  Since 2008, he has also yearly taught a subset of this class as a Professor of the International Program in Pharmaceutical Engineering Management of Peking University, Beijing, China.  He speaks Chinese and is knowledgeable in many languages.  Previously, he was risk assessment manager and toxicology manager for several companies in the oil, chemical, and pesticide industries.  Dr. Cragin is a Past-President of the Mid-Atlantic Society of Toxicology, the largest chapter of the Society of Toxicology, and a Councilor for the Philadelphia Association for Critical Thinking.  He received his Ph.D. in Pharmacology and Toxicology from University of California, Davis, his B.S. in Zoology from the University of Rhode Island, and is a Diplomate of the American Board of Toxicology.

Selected Scholarly Activity

Cragin, D.W. & Silverman, K.S., Don’t Get Your Chemicals Stopped at the Border:  Compliance with China’s New Chemical Notifications.   Poster given at SRA Charleston, SC , Dec. 6, 2011. 

Cragin, D.W., Managing the emerging threat of Clostridium difficile.  Poster given at SRA Baltimore, MD, Salt Lake City, Utah, Dec. 8, 2010. 

Cragin, D.W., & Parvanta, C., Risk and Emergency Risk Communication.  Chapter 16, In:  Essentials of Public Health Communication.  Jones & Bartlett Learning.  2010.

Cragin, D.W., Assessing the risks of chemicals in the environment: are pharmaceuticals different?  Poster given at SRA Baltimore, MD, Dec. 8, 2009. 

Schwab, B.W., Hayes, E.P., Fiori, J.M., Mastrocco, F.J., Roden, N.M., Cragin, D.W., Meyerhoff, R.D., D’Aco, V.J., Anderson, P.D., Human pharmaceuticals in US surface waters:  A human health risk assessment.  Regul. Tox. and Pharm. 42:  296-321, 2005.

D. W. Cragin, J. J.W.M. Mertens, J. T. Yarrington, M. Salmona, P. Ciocca, Q. Q. Bui Absence of Neurotoxicity for Tricyclohexyltin Hydroxide in a 90-Day Subchronic Feeding Study in Rats. Poster.  American College of Toxicology Annual Meeting.  (Nov/2001).

Ruby, M. V.; Schoof, R.; Brattin, W.; Goldade, M.; Post, G.; Harnois, M.; Mosby, D. E.; Casteel, S. W.; Berti, W.; Carpenter, M.; Edwards, D.; Cragin, D.; Chappell, W.  Advances in Evaluating the Oral Bioavailability of Inorganics in Soil for Use in Human Health Risk Assessment.  Environ. Sci. Technol.; (Critical Review):  33(21); 3697-3705, 1999.

Schoof RA, Yost LJ, Eickhoff J, Crecelius EA, Cragin DW, Meacher DM, and Menzel DB, A market basket survey of inorganic arsenic in food. Food and Chemical Toxicology, 37:839-846, 1999.

Schoof, R.A., Eickhoff, J., Yost, L.J., Crecelius, E.A., Cragin, D.W., Meacher, D.M., and Menzel, D.B., Dietary exposure to inorganic arsenic.  In: Proceedings of the 3rd International Conference on Arsenic Exposure and Health Effects.  W.R. Chappell C.O. Abernathy and R.L. Calderon (editors).  Elsevier Science Ltd, Oxford UK, 81-88, 1999.

Schoof, R.A., J. Eickhoff, L.J. Yost, E.A. Crecelius and D.W. Cragin , Dietary arsenic intake in Taiwanese districts with elevated arsenic in drinking water. Hum. Ecol. Risk Assess. 4: 117–135, 1998.

Professional Information

Associate Director, Chemical Notification and Registration, Merck & Co.

Contact Information

Mailing address: University of Sciences
600 South 43rd Street
Philadelphia, PA 19104-4495
Office Phone: 610.491.2815