Our Team

Clients can be assured of Drug Free Sport International’s expertise in drug-testing management and its commitment to confidential, professional and reliable service at all times. From certified athletic trainers and attorneys, to laboratory managers and former collegiate and professional athletes, our all-star team has the hands-on experience you are looking for in today’s sports drug-testing and educational environment.

Executive/Leadership

Chris Guinty, J.D.
| 816.474.8655
President and Chief Executive Officer
Jenny Johannesson
| +46 8 555 10 900
Managing Director International
James Miller
| 816.481.9476
Chief Financial Officer
Ben Mosier
| 816.214.1297
Horseracing Integrity & Welfare Unit Executive Director
Mark Bockelman
| 816.797.6341
Chief of Special Projects
Josh Mittlestadt
| 816.564.6876
Vice President of Information Technology
Michelle Dorsey
| 816.985.9302
Vice President of Amateur Sport
J.D. Matheus, MA
| 913.915.9022
Vice President of Professional Sport
Ryan Willis
| 816.289.8526
Vice President of Professional Football Operations
Darius Kaziukenas
| +46 8 555 10 900
Vice President of Network
Sarah Ziegelmann
| 816.401.3176
Vice President of Healthcare Services
Tudor Popa

Vice President Business Development, Anti-Doping
Christian Nilsson

Vice President of International Federations / NADOs
Trent Godfrey
| 816.872.4196
Vice President of Professional Sport & U.S. Anti-Doping Business Development

Amateur Sport

Josh Scholten
| 816.728.9372
Director of Amateur Sport
Michaela Stemmons, MA, ATC
| 816.489.5101
Amateur Sport Senior Program Manager
Austin Acosta
| 816.589.3294
Amateur Sport Program Manager

Business Development

Chris Walker
| 816.642.4642
Director of Business Development, Healthcare Services
Richard Lewis
| 816.833.9930
Director of Business Development, Healthcare Services
Sofie Sibia

Director of Business Development, International Healthcare Services

Education/Drug Free Sport AXIS™

Anna Bottoms, MS, CPT
| 816.808.6505
Education Senior Program Manager

Finance

Allison Lathim, M.Ed.
| 816.214.1855
Controller
Johanna Benktander

Finance Manager
Rojda Aksoy

Finance Assistant
Mariangela Vikstrom

Finance Assistant
Shanshan Xie

Finance Assistant

Healthcare Services

Krysti Green, MS
| 816.519.3198
Director of Healthcare Services
Kinzel Rony
| 816.621.9720
Healthcare Services Program Manager
Jennifer Brown
| 816.589.8715
Healthcare Services Program Manager

Horseracing Integrity & Welfare Unit (HIWU)

Michelle Pujals, JD
| 816.291.1864
HIWU General Counsel
Kate Mittelstadt
| 816.912.6929
HIWU Chief of Operations
Dr. Mary Scollay
| 859.489.7677
HIWU Chief of Science

Human Resources

Andrayana Estes, MA, SHRM-CP, CMP
| 816.810.6391
Director of Human Resources

Information Technology

Phillip Dugan
| 816.510.6593
IT Support Systems Administrator
John Totzke
| 816.704.0193
IT Support Systems Administrator

International Federations / NADOs

Thomas Moschner

German NADA Program Director / QA
Crista Davis

International Federations Senior Program Manager
Victoria Grasbon

International Federations Senior Program Manager
Neal Soderstrom

International Federations Senior Program Manager
Jayde Hargreaves

International Federations Program Manager
Marija Tabas

International Federations Program Manager
Ighodaro Iweka

International Federations Program Manager
Michele Rigsby

International Federations Program Manager
Chris Meyer

German NADA Program Manager
Krisztina Csoke

International Federations Program Manager Assistant

Logistics

Fabian Pilsetnek

Logistics Coordinator

Network

Gatis Berkis

Director of International Network
Cara Thompson
| 816.730.8161
Director of U.S. Network
Momoko Kaneko

International Network Program Manager
Justin Gore
| 816.492.8791
US Network Program Manager

Professional Sport

Daryl Dingle, MS
| 816.214.1194
Senior Director of NFL Substances of Abuse (SOA) Drug Testing
Rachel Wadkins
| 816.599.1193
Senior Director of NFL Performance Enhancing Substances (PES) Drug Testing
Luis Perales
| 816.585.4783
Director of Professional Sport
Bradley Strauss
| 816.863.1238
Director of Professional Sport
Matthew Ruder
| 816.642.8708
Professional Sport Program Manager
Hanah Cerkoney
| 816.965.7914
Professional Sport Program Manager
Laura Jonah
| 816.654.2165
Professional Sport Program Manager