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University of Colorado Denver

Center for Worker Health and Environment

Mountain & Plains ERC Faculty

Administrative Faculty and Staff



Lee S. Newman, MD, MA, FCCP, FACOEM


Dr. Newman is the founding Director of the NIOSH-funded Mountain and Plains Education and Research Center (MAP ERC). Dr. Newman is a Professor of Environmental and Occupational Health and a Professor of Epidemiology in the Colorado School of Public Health. He is also Professor of Medicine in the Division of Allergy and Clinical Immunology and the Division of Pulmonary Science and Critical Care Medicine, in the School of Medicine, University of Colorado Denver.

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Steve Reynolds, Ph.D., CIH, FAIHALucia.jpg

Deputy Director

Dr. Reynolds is the Deputy Director and the Industrial Hygiene Program Director of the MAP ERC. Dr. Reynolds is the Professor and Head of the Occupational and Environmental Hygiene Section of the Department of Environmental and Radiological Health Sciences, Colorado State University. He is Director of the CDC/NIOSH funded High Plains Intermountain Center for Agricultural​ Health and Safety, in addition to serving on the MAP ERC board.

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Carol Brown, Ph.D.brown.jpg

​Program Evaluator Coordinator

Carol coordinates evaluation and assessment procedures for the School. She received a PhD in Psychology from the University of Southern California (USC) and a BA in Psychology from Oklahoma State University. Prior to joining CSPH, Carol conducted program evaluations for The Graduate School at USC.

David Gilkey, Ph.D., DC, CPE, CSP

Continuing Education Director

Dr. David Gilkey is an Associate Professor and the Director of Undergraduate Education in the Department of Environmental and Radiological Health Sciences at Colorado State University. He is a teacher and frequent lecturer on many environmental and occupational health and safety topics. Dr. Gilkey is a Certified Professional Ergonomist (CPE). He also provides service as the Assistant Director of Continuing Education at CSU for the NIOSH funded Mountain And Plains Education and Research Center (MAP ERC).

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haan.jpgMichelle Haan, MPH

Professional Research Assistant 

Michelle received her Master of Public Health degree from the Colorado School of Public Health with a focus on Community and Behavioral Health. As a Research Assistant at the Center, Michelle enjoys managing the Health Links program and assisting with the many projects that are run through the Center. Michelle is passionate about connecting with people throughout the community and learning how to help empower them to make choices to live safer and healthier lives.​  

Sara Higgins

Finance Administrator

Sara has been with University of Colorado Denver since 1999 and has done all aspects of budget management for Dr. Newman since the MAP ERC began in 2007.  She has experience with accounting, budget management,  grants, contracts, subcontracts/pilot projects, and general office administration.


Natalie.jpgNatalie Schwatka, Ph.D.
Research Associate

Natalie received her Ph.D. in Environmental Health from Colorado State University, and her B.A. in Psychology from University of Portland.  Natalie’s research interests include leadership, safety climate/culture, workplace wellness programs, and the development and evaluation of leading indicators of workplace health and safety.  Natalie is passionate about working with community partners on applied research projects that ultimately result in improved academic and practical knowledge.

tenney.jpgLiliana Tenney Starr, MPH

Deputy Director, Center for Worker Health & Environment

Lili received her Masters of Public Health Degree from the Colorado School of Public Health. Her research interests include workplace wellness programs, community and behavioral health. She co-founded Health Links, a program in the Center for Worker Health and Environment.  Before pursuing her MPH and working at the Mountain and Plains ERC, Lili developed a strong background in marketing, business development and social media with her work in event production, health promotion and wellness.

Brenda.pngBrenda Thompson

Finance Assistant and Administrative Assistant

Brenda is a Colorado native and graduated from CU Boulder. She assists the Finance Administrator and provides administrative support to the Center, coordinating Center events and schedules.


rzwitter%20pic%202.JPGRoxana Witter, MD, MSPH

Director, OEM Residency Program​ & Associate Professor 

Dr. Witter is an Assistant Research Professor in the Department of Occupational and Environmental Health at the Colorado School of Public Health. She is the Program Director for the Occupational Medicine Residency Program and mentors several occupational medicine residents each year. She is co-Director of the MAP ERC Occupational Health Interdisciplinary Symposium and has previously been Director of the Occupational Toxicology MPH course.

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