Who We Are


Sasha Stiles (chair)

Dr. Stiles is a Medical Doctor, educated and trained at the University of California San Francisco, with a Master’s in Public Health from the University of California Berkeley.  She is currently an adjunct professor at the University of Denver.

Sasha is a resident of Superior, Colorado, a small town that directly abuts the buffer zone of the former Rocky Flats Nuclear Weapons Plant, now named the Rocky Flats Wildlife Refuge.  As a result, concerns about the health effects from Rocky Flats contamination is not only professional but also personal to Sasha. She has worked to define parameters for a risk assessment process of Rocky Flats and its buffer zone.  The goal of the work is to ensure such assessments are based on human rights, rather than assumptions or mathematical models. She is interested in identifying biomarkers of radiation damage, particularly given that government agencies have failed to do so and thus escaped the responsibility of health harms.  Sasha is dedicated to citizen health, public safety, and exposing the ramifications of radiation injuries. 



Sharon Montes (chair-elect)

Dr. Montes is a physician with UCHealth and the founder of Living Well Whole Health.  As Medical Director for the University of Maryland Center for Integrative Medicine, she directed the team that created a showcase center for providing integrative medical care in an academic environment. She also had an active clinical practice and participated in teaching students, residents, fellows. She was active in community outreach programs and served as Medical Director of Rose and AF Williams Family Medicine Centers – University of Colorado School of Medicine; Arlington Community Health Center.  Sharon's work combines a researcher’s brain knowledge of medical and organizational systems and the experience in western science with a healer’s heart.


Tracy Koller (secretary)

Ms. Koller is a nurse practitioner in Colorado.


Barbara Donachy (secretary-elect)

Ms. Donachy has a Masters degree from the Colorado School of Public Health and is a co-founder of PSR Colorado.  She is dedicated to evaluating the health impacts of environmental threats and has worked on public health projects in Nicaragua and Bolivia. She is currently retired and serves on the board of 350 Colorado working on issues related to climate change, fracking and environmental justice. She is also an artist, graphic designer, mother and grandmother. She has been a member of PSR since 1982 when she began production of Amber Waves of Grain, a 30,000 piece ceramic installation representing the US nuclear arsenal.

“In the 1980s we were on the brink of nuclear holocaust and now we are on the brink of a climate catastrophe. Throughout, PSR has been a loud and important voice for our people and planet and I am honored to be a part.”


Cory D Carroll M.D. (Treasurer)

Dr. Carroll is a family physician in Fort Collins, Colorado.  He has spent most of his life in Colorado growing up in Aurora. He obtained a mechanical engineering degree from Colorado State University, then was immediately commissioned in the United States Air Force and obtained a master's degree from the Air Force Institute of Technology in Dayton, Ohio.   After 7 years at Wright Patterson Air Force Base (yes, his entire career at one base) he separated as a Captain and entered medical school at the University of Cincinnati.  Cory came back to Colorado for his residency at Poudre Valley Hospital Family Medicine Program and started his medical career as a solo doc in Fort Collins where he has stayed for the past 28 years.  Over the years he has joined different practices but found that being a solo doc works for him.  Foothills Family Practice, LLC is a Direct Primary Care (DPC) practice which has allowed him to focus on taking care of his patients and minimizing the bureaucracy. 

"Health of the individual hinges on health of the planet.  With clean air, water and food (mainly whole foods plant-based) our bodies can not only thrive but efficiently heal.  When we live in a polluted environment our immune system will be stressed and lower its capacity to ward off illness and disease.  Our health and our children's health is worth fighting for and that's why PSR Colorado is so important!"



Deborah Segaloff (treasurer-elect)

Dr. Segaloff is a Ph.D. biomedical research scientist who recently retired from a position as Professor of Molecular Physiology & Biophysics and a member of the Holden Comprehensive Cancer Center at the University of Iowa School of Medicine. Her research was in the field of reproductive endocrinology, with certain aspects of her studies interfacing with cancer research.

For many years Debbie has been concerned about the increasing threat of human-caused climate change. Upon retiring and moving to Colorado, she quickly learned of environmental issues specific to this area and, from a personal perspective, very close to home. Firstly, there is Rocky Flats, a former manufacturing site of plutonium triggers for atomic weapons. Not only was the industrial site only minimally cleaned up after is closure, areas surrounding the site were not cleaned up at all and remain contaminated with plutonium and other carcinogens, thereby posing significant health hazards. Secondly, in Colorado there is extensive oil and gas development, including in more recent years hydraulic fracturing, activities that pose risks not only to our environment and climate, but to our health as well. In light of these issues, Debbie has become actively engaged in education and advocacy for public health, viewing these actions as increasingly vital to securing a safer environment for ourselves and for future generations.



Ed Granados

Dr. Granados is a retired PhD biological chemist who has been fascinated by the chemistry involved in the genetic aspects of human life since his first undergraduate classes in DNA replication and RNA translation. He has decades of experience in various aspects of cancer-related research, including development of anti-cancer therapeutics, discovery of new cancer diagnostic markers, and the development of commercial DNA and RNA diagnostic assays for cancer related genomic and epigenomic alterations. He also had experience in the preparation and review of Manufacturing Process Risk Assessments and the review of Manufacturing Process Validation documentation that was associated with diagnostic product commercialization.  After moving to Colorado in 2016, Ed was appalled to learn about the extent of harmful impacts of fracking and the dangers to health that still remain near Rocky Flats. 

His favorite fitness activities include Iyengar Yoga, weight lifting and swimming. He has been learning to play the guitar for fifty years years and  the djembe for two.  He enjoys fly fishing and hiking in the mountains with his wife, two daughters and son-in-law.


Fran Levine

Ms. Levine has been a licensed and registered Occupational Therapist for over 25 years, and is a graduate of Colorado State University.  Her passion lies in pediatrics, where she specializes in her work. Fran was a key reason the Medical Symposium on the Health Impacts of Oil and Gas Development was created, executed in 2019, and continues today to educate and serve both medical professions as well as our communities on the harms of unconventional oil and gas development.  Fran is honored to be a founding Board Member of PSR CO. As a proud mother of two wonderful children, she is dedicated to creating an environment that is free of environmental hazards for both them and all her pediatric patients. All evidence shows that better energy solutions are not only necessary to create the safe future that all Coloradans deserve but they are also within our reach.  Life is truly what you make it.


Elena M. Lopez

Dr. Lopez is an environmental physiologist based in Fort Collins. She earned a Ph.D. in Environmental Endocrine Disruption and a Master’s degree in Environmental Biology from CU Boulder, and a Bachelor’s degree in Environmental Studies from the University of Southern California where she played intercollegiate varsity soccer. Elena’s scientific background is interdisciplinary and includes academic research and industry consulting in the areas of environmental endocrine disruption, and human and wildlife physiology. She has researched the effects of persistent environmental contaminants on development and reproduction in humans and other vertebrates. Elena currently specializes in complex data management and informatics for human health and ecological risk assessments in the environmental remediation industry. 

In her free time, Elena enjoys fly fishing in the Rockies, and hiking with her beloved red heeler, Kole, named after her favorite left-handed baseball player, Kole Calhoun. 



Harv Teitelbaum

Mr. Teitelbaum received his master of arts degree in Environmental Studies and Ecopsychology from Naropa University in Boulder, Colorado. He also holds a bachelor of science degree in Business Administration from Regis University in Denver. Harv was an adjunct instructor of Environmental Science for ten years. Before entering the formal teaching profession, he worked with the Colorado Division of Wildlife for five years giving wildlife education workshops and writing curricula on Colorado's biodiversity, ecosystems, and river monitoring and was Executive Director of a local Soil and Natural Resources Conservation District.

He lives with his wife (a semi-retired psychiatrist) and three dogs in the foothills of the Rockies in a Ponderosa pine forest, on which he practices sustainable forestry for fire mitigation and for his home’s biofuel back-up to geothermal and solar panels. He leads groups into the canopy and teaches climbing skills as Tree Climbing Colorado, LLC.  Harv is one of about a dozen recognized master recreational tree climbing instructors in the world and was founding president of the nonprofit Global Organization of Tree Climbers (GOTC).


Catherine Thomasson

Dr. Thomasson is an environmental consultant and advocate for healthy climate policy.  She is the former executive director of Physicians for Social Responsibility in Washington, D.C., and an internal medicine physician by training. She is excited to work with the PSR Colorado team in fighting to protect against the health threats of fracking and for our future where burning fossil fuels no longer contribute to climate change. She finds inspiration in hiking our mountains and forests.