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University of Colorado Denver


Mountain & Plains ERC Faculty



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

MAP ERC Director

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.

Read full bio here


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

MAP ERC 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 (HICAHS), in addition to serving on the MAP ERC board.

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

MAP ERC Diversity 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).

Read full bio here


Natalie.jpgNatalie Schwatka, Ph.D.
Instructor and MAP ERC Alumni Relations

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 Health, Work & Environment, and MAP ERC Continuing Education Director

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 Health, Work & 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.


Josh Scott​

MAP ERC Associate Director of Continuing Education

Bio coming soon.

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

MAP ERC OEM Residency Program​ Director & 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 MAP ERC 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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