Skip to main content
U.S. flag

An official website of the United States government

Connect

In the following list, you'll find the contact information for all National Geospatial Technical Operations Center (NGTOC) Senior Staff through Branch Chief members.  We look forward to connecting with you!

Locations

Contacts

David A Brostuen

Director, National Geospatial Directorate
Core Science Systems Mission Area
Phone
303-202-4004

Kim Mantey

Director
National Geospatial Technical Operations Center
Phone
303-202-4508

Ray Postolovski

Deputy Associate for Operations
National Geospatial Technical Operations Center
Phone
303-202-4363

Phyllis Altheide

NGTOC Associate of Innovation
National Geospatial Technical Operations Center
Phone
573-308-3813

Kevin L Wood

Shared Services Manager
National Geospatial Technical Operations Center
Phone
573-308-3584

Employee Directory

Job Title
Name
Email
Phone
Admin Support Asst, USAccess Site Manager Theresa D Lewis tdlewis@usgs.gov 573-308-3599
Administrative Operations Assistant Erica N Volkmer evolkmer@usgs.gov 573-308-3667
Agreements Analyst Leslie Burns lburns@usgs.gov 573-308-3666
Agreements Analyst Ally Johnson amjohnson@usgs.gov 573-308-3560
Budget Analyst Angela Feeler afeeler@usgs.gov 573-308-3947
Budget Analyst Lori Benavente lbenavente@usgs.gov 573-308-3713
Cartographer Tanya Buxton Torres tbuxtontorres@usgs.gov 303-202-4185
Cartographer Travis Hawkins Landauer tlandauer@usgs.gov 303-202-2463
Cartographer Andrew Stauffer astauffer@usgs.gov 303-202-4534
Cartographer Christopher Helm chelm@usgs.gov 303-202-4348
Cartographer Tatyana Dimascio tdimascio@usgs.gov 303-202-4206
Cartographer Robert Osadetz rosadetz@usgs.gov 303-202-4207
Cartographer David S Anderson danderson@usgs.gov 573-308-3598
Cartographer Emily Anderson eanderson@usgs.gov 303-202-4124
Cartographer Blake Naito bnaito@usgs.gov 303-202-4382
Cartographer Brian Pfeiffer bpfeiffer@usgs.gov 303-202-4435
Cartographer Theodore Schulz taschulz@usgs.gov 303-202-4468
Cartographer Alex Katz aikatz@usgs.gov 303-202-4274
Cartographer Lily Niknami lniknami@usgs.gov 303-202-4559
Cartographer Wes Gillman wgillman@usgs.gov 573-308-3590
Cartographer Ryan Teter, GISP rteter@usgs.gov 303-202-4184
Cartographer Michael Tinker mdtinker@usgs.gov 303-202-4476
Cartographer James E Almekinder jalmekinder@usgs.gov 573-308-3549
Cartographer and National NHD POC Joel J Skalet jjskalet@usgs.gov 608-238-9333
Ext: 152
Cartographer, GIS Support Specialist Brendan Berve bberve@usgs.gov 303-202-4175
CEGIS Section Chief/ Supervisory Geographer Ethan Shavers, PhD eshavers@usgs.gov 573-308-3688
Chief, Cartographic Applied Research Section William J Marken wmarken@usgs.gov 573-308-3532
Commercial Partnership Lead Walter Kloth wkloth@usgs.gov 303-202-4334
Commercial Partnership Team - GPSC Michael Bradford mbradford@usgs.gov 573-308-3629
Computer Scientist Philip Thiem pthiem@usgs.gov 573-308-3514
Data Management Specialist Amber Wittner awittner@usgs.gov 303-202-4335
Delivery Project Manager Robert Djurasaj rdjurasaj@usgs.gov 303-202-4538
Deputy Associate Director Darcee Killpack dkillpack@usgs.gov 303-202-4115
Deputy Associate for Operations Ray Postolovski rpostolovski@usgs.gov 303-202-4363
Deputy Director Hannah Boggs hboggs@usgs.gov 303-202-4482
Director Kim Mantey kmantey@usgs.gov 303-202-4508
Director, National Geospatial Directorate David A Brostuen dabrostuen@usgs.gov 303-202-4004
Elevation Applied Researcher Lori A Phillips lphillips@usgs.gov 573-308-3547
Elevation-derived Hydrography Applied Researcher Christy-Ann M. Archuleta carchule@usgs.gov 573-308-3574
Geographer Somayeh Nasrollahi-Tari snasrollahitari@usgs.gov 303-202-4113
Geographer Marcelle Caturia mcaturia@usgs.gov 303-202-4401
Geographer Scott Owens sowens@usgs.gov 573-308-3628
Geographer Kevin W Romero kwromero@usgs.gov 303-202-4480
Geographer Frank Velasquez fvelasquez@usgs.gov 303-202-4546
Geographer Alexander J Kaufman akaufman@usgs.gov 303-202-4549
Geographer Vanessa Baez vbaez@usgs.gov 573-308-3500
Ext: 3619
Geographer Samantha Doering sdoering@usgs.gov 303-202-4204
Geographer Contracting Officer's Technical Representative (COTR) Jayna Winehouse jwinehouse@usgs.gov 303-202-4502
Geography Trainee William Sjulstad wsjulstad@usgs.gov 303-202-4145
Hydrogeologist Cynthia Miller-Corbett cmcorbet@usgs.gov 303-202-4407
Information Specialist James Maxwell jpmaxwel@usgs.gov 573-308-3580
IT Specialist James M Cameron jcameron@usgs.gov 573-308-3610
IT Specialist Lister B Florence, Jr. lflore@usgs.gov 573-308-3915
IT Specialist (Applications Software) Edmund E Phillips, III eephillips@usgs.gov 573-308-3583
IT SPECIALIST (SYSADMIN) Gary Prochilo gprochilo@usgs.gov 303-202-4336
NGTOC Associate of Innovation Phyllis Altheide paltheide@usgs.gov 573-308-3813
Physical Research Scientist Jung kuan (Ernie) Liu jliu@usgs.gov
Physical Scientist Charles Conley cconley@usgs.gov 573-308-3948
Physical Scientist Charles E M Pederson cpeder@usgs.gov 573-308-3949
Program Analyst Richard E Brown reb@usgs.gov 573-308-3525
Program Analyst Nathan Singleton nsingleton@usgs.gov 573-308-3542
Research Cartographer Larry Stanislawski lstan@usgs.gov 573-308-3914
Research Physical Scientist Dalia E Varanka, PhD dvaranka@usgs.gov
Science Systems Development Section Chief David R Hughes drhughes@usgs.gov 303-202-4112
Senior GIS Applied Researcher Barry Y Miller bymiller@usgs.gov 303-202-4015
Shared Services Manager Kevin L Wood wood@usgs.gov 573-308-3584
Standards Specialist James Kaufmann jkaufmann@usgs.gov 578-308-3597
Supervisory Cartographer Maria McCormick mlmccormick@usgs.gov 303-202-4295
Supervisory Cartographer Philip Rufe prufe@usgs.gov 573-308-3546
Supervisory Cartographer Patrick F Emmett pemmett@usgs.gov 573-308-3587
Supervisory Geographer Erin Korris ekorris@usgs.gov 303-202-4503
Supervisory Geographer Erik Ahl eahl@usgs.gov 303-202-4733
Technical Lead - 3DEP Operations Sarah Klaas sklaas@usgs.gov 573-308-3648
Technical Management for DBMS Operations Jerry Ornelas jxornelas@usgs.gov 303-202-4143