Skip Navigation
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Internet Explorer is no longer a supported browser.

This website may not display properly with Internet Explorer. For the best experience, please use a more recent browser such as the latest versions of Google Chrome, Microsoft Edge, and/or Mozilla Firefox. Thank you.

Your Environment. Your Health.

J. Patrick Mastin

Deputy Director

J. Patrick Mastin, Ph.D.
James P. Mastin, Ph.D.
Acting Division Director, Division of Extramural Research and Training
Tel 984-287-3285
Fax 919-541-2843
P.O. Box 12233
Mail Drop K3-05
Durham, N.C. 27709

Patrick Mastin received his B.S. in biochemistry and molecular biology from Centre College and his Ph.D. in pathology from Duke University as part of the Duke Interdisciplinary Toxicology Program. He was a senior research biologist and section chief at the National Institute for Occupational Safety and Health before coming to the NIEHS Division of Extramural Research and Training (DERT) as a scientific review officer in 1998. He served as program officer for the respiratory, cardiovascular, and immunology portfolio and as chief of the Cellular, Organ, and Systems Pathobiology Branch. He is currently deputy director of DERT.

to Top