Click on any of the CRN staff names for brief biographical information.

President & CEO Steve Mister, Esq. 202-204-7676 / smister@crnusa.org Senior Vice President, Communications Judy Blatman 202-204-7680 / jblatman@crnusa.org Vice President, Government Relations Mike Greene 202-204-7690 / mgreene@crnusa.org Vice President, Scientific & International Affairs James C. Griffiths, Ph.D. 202-204-7662 / jgriffiths@crnusa.org Vice President, Scientific & Regulatory Affairs Douglas "Duffy" MacKay, N.D. 202-204-7664 / dmackay@crnusa.org Senior Director, Scientific & Regulatory Affairs Taylor C. Wallace, Ph.D., FACN 202-204-7660 / twallace@crnusa.org Regulatory Counsel Rend Al-Mondhiry, Esq. 202-204-7672 / ral-mondhiry@crnusa.org Director, Membership Development Carl Hyland 202-204-7674 / chyland@crnusa.org Director, Operations Sandra Khouri 202-204-7673 / skhouri@crnusa.org Director, Government Relations Ingrid Lebert 202-204-7699 / ilebert@crnusa.org Director, Communications Nancy Stewart 202-204-7684 / nstewart@crnusa.org Senior Manager, Scientific Research & Regulatory Affairs Haiuyen Nguyen 202-204-7669 / hnguyen@crnusa.org Senior Manager, Communications Katie Stevenson 202-204-7682 / kstevenson@crnusa.org Senior Executive Assistant to the President & CEO Tammie Betway 202-204-7670 / tbetway@crnusa.org