Key Officials
Learn more about our key officials. Read their biographies or contact our Deputy Directors, Chief of Staff, Associate Directors of our Mission Areas, our Science Support executives at headquarters, or our Regional Directors across the country.
Quick Links
Use the links below to skip to the leadership groups.
Ned Mamula, Ph.D.
Director
Office of the Director
Email: director@usgs.gov
Phone: 703-648-7411
Anne Barrett
Acting Deputy Director - Administration and Policy
Administration
Acting Deputy Director – Operations
Office of the Director
Email: abarrett@usgs.gov
Phone: 703-648-4379
Dave Applegate, Ph.D.
Chief Scientist
Office of the Director
Email: applegate@usgs.gov
Phone: 703-648-7411
Megan Elliott
Acting Chief of Staff
Office of the Director
Email: melliott@usgs.gov
Phone: 703-648-7455
William L Cunningham
Director
Office of International Programs
Acting Director
Office of Science Quality and Integrity
Email: wcunning@usgs.gov
Phone: 703-648-5005
Shari DeLung
Acting Associate Director
Office of Budget, Finance and Analysis
Email: sdelung@usgs.gov
Phone: 703-648-7174
Matt Huggler
Acting Associate Director
Office of Communications and Publishing
Email: mhuggler@usgs.gov
Phone: 703-648-4410
Keel Ross
Acting Associate Chief Information Officer
Office of the Associate Chief Information Officer (ACIO)
Email: klross@usgs.gov
Phone: 303-236-5693
Melanie Ruiz
Freedom of Information Act Officer
USGS Freedom of Information Act (FOIA) Office
Email: mruiz@usgs.gov
Phone: 571-512-8459
Dave Applegate, Ph.D.
Acting Associate Director
Natural Hazards
Email: applegate@usgs.gov
Phone: 703-648-7411
Sarah Ryker, Ph.D.
Associate Director
Geology, Energy, and Minerals Mission Area
Email: sryker@usgs.gov
Phone: 703-648-5210
Mike Tischler
Acting Associate Director
Core Science Systems
Email: mtischler@usgs.gov
Phone: 703-648-4725
Paul Wagner
Acting Associate Director
Ecosystems
Email: pwagner@usgs.gov
Phone: 703-648-4034
Bill Werkheiser
Associate Director
Water Resources
Email: whwerkhe@usgs.gov
Phone: 703-648-6640
Peter Griffiths
Regional Director
Rocky Mountain Region
Acting Regional Director
Northwest-Pacific Islands Region
Email: pggriffi@usgs.gov
Phone: 303-236-4836
Jon Hortness
Acting Regional Director
Midcontinent Region
Acting Regional Director
Northeast Region
Email: hortness@usgs.gov
Phone: 815-530-3274
Rodney Knight
Acting Regional Director
Southeast Region
Email: rrknight@usgs.gov
Phone: 615-837-4731
Durelle Smith
Acting Regional Director
Alaska Region
Email: dpsmith@usgs.gov
Phone: 907-7867104
Darrin Thome
Acting Regional Director
Southwest Region
Email: dthome@usgs.gov
Phone: 916-978-2156