Meet Our Providers
Brent Jaster, MD, FAAFP
Brent Jaster MD, graduated from Dartmouth Medical School, and enjoys helping others, particularly men, achieve emotional, mental, and physical health. Personal growth/spiritual health, however defined, are foundational to his approach to holistic health.
Dr. Jaster believes passionately in the power of entheogenic medicine (to induce a non-ordinary state of consciousness), neurofeedback, sound as therapy, and that which helps resolve past trauma/unhealthy patterns through enhanced neuroplasticity (changeable brains). We all have some trauma, and getting to the root of a problem brings true resolution.
Brent uses lifestyle medicine, integrative holistic medicine, an open-mind, and creativity to help people help themselves. He is a facilitator of health on your individual path. Focus areas include mental and emotional wellness, sleep, sinus
health and environmental allergies, eczema, and helping people understand the link between mental wellness and physical symptoms.
Brent’s appreciation for diversity, inclusion, culture and equity emerged in 9th grade (SF Bay Area), meeting profound strangers (of color) during his travels and hanging out with his dad’s pro baseball teams for many months of his life. Immense personal growth comes from his children and interpersonal relationships. Influential moments in life include: a semester abroad in Melbourne, Australia; a 200-hour yoga teacher training; 6 weeks of volunteering on Patch Adams’s land in WV; and trainings in Entheogenic (Psychedelic) Medicine. While recreational psychedelic drug use has a social stigma, there is a good amount of published research that justifies the use of chemicals, often from plants, that change perception, mood and cognitive processes that do not serve an individual.
Ketamine is a legal, and commonly used anesthetic, while clinical trials are underway that point to legalization of mdma and psilocybin for therapeutic use of conditions like: suicide risk, treatment resistant depression, post-traumatic stress disorder (PTSD), and others. Stay tuned for more information to be posted here.
We believe Black Lives Matter, create a safe space for LGBTQIA+, endeavor to research/provide access to life-changing services and utilize the power of community/group process.
My Medical training and career highlights include:
Coordinating a clinical trial, published in Diabetes Care, that compared a vegan diet and an American Diabetes Association diet. Guess which was superior?
Co-authoring 2 editions of the Nutrition Guide for Clinicians. Access the free on-line version at NutritionMD.org
Board Certifications: Integrative Holistic Medicine and Family Medicine
Nationally-recognized expertise as a speaker and consultant for Shared Medical Appointment implementation.
Kaylee Dewan, FNP-BC
Kaylee was born and raised in metro-Detroit. She earned her Bachelor of Science from Grand Valley State University and Bachelor of Science in Nursing from Michigan State University. She received her Master of Science in Nursing at the University of Michigan. She is currently enrolled in the ADAPT Practitioner Program through the Kresser Institute to broaden her knowledge of functional medicine. After living in Michigan her entire life, she recently moved to beautiful Colorado with her husband Jack and aussiedoodle Zuma to start a new adventure. She believes nature is medicine and when she’s not working, you can find her outside hiking, camping, traveling, or snowboarding.
After working several years in both the hospital and outpatient facilities, Kaylee has seen the damaging effects of chronic disease and patients who desire more from their health care provider. She believes that each patient has their own story. Please join her in a partnership to help you achieve optimal wellness!
Casey Spiro Linke, FNP-C
Casey Spiro Linke is a board certified family nurse practitioner and has been with LIFE Medicine since 2018. She is passionate about the importance of primary care, LGBTQ+ issues, preventative medicine, gut health, mental health and being an empathetic and compassionate health care provider. She received her Masters in Nursing as well as a BS in Nursing, and a BA in Public Policy, from the University of North Carolina at Chapel Hill. She is the proud mother of two girls and two dogs and spends most of her free time hiking and watercoloring.
Cori Fratelli, FNP-C
Cori Fratelli is a board certified family nurse practitioner. She is passionate about primary care medicine being the key towards longevity, and believes in partnering with patients to help them live their fullest life. Cori has a unique background in both Eastern and Western medicine, and brings aspects of these practices into each appointment. She has studied Ayurvedic Medicine, yoga, and massage therapy; as well as, completed extensive basic science and clinical research in the field of respiratory medicine, while working at National Jewish Health. Cori’s specialties are listed below.
In her free time, you will find her hanging out with her significant other, 2 teenagers, chasing her 4 dogs (yes, 4 dogs!), skiing in the backcountry, on the Nordic trails skate/classic skiing, or traversing the mountains on her mountain bike. When not outside, Cori likes to make gluten-free vegetarian fare, read, meditate, or practice yoga.
Airway diseases: asthma, COPD, airway hyperresponsiveness
Sinus and Allergy issues
Skin diseases: acne, atopic dermatitis/eczema, psoriasis
Cardiac disease: hypertension, hyperlipidemia
Second opinions for childhood and adult management of ADHD/ADD
Postural assessments for joint health and/or pain management
Georgetown University, Master of Science in Nursing (focus on Family Medicine)
Regis University, Bachelor of Science in Nursing
University of Colorado, Bachelor of Arts in Biochemistry
St. Joseph’s University, Certificate in Secondary Education
Samudra Global School of Living Yoga, Certificate in Yoga (focus on Ayurvedic Medicine)
Boulder College of Massage Therapy, Certificate in Massage Therapy (focus on Sports and Injury Rehabilitation)
My passion has always been helping people attain optimum health in body, mind and/or spirit. I was a Physician Assistant for almost 20 years, and I focused on each patient’s uniqueness to encourage this journey. In my new role as a health coach/educator and neurofeedback specialist, I have that approach as well. I educate, guide and support patients in their quest for excellent health and healing and optimal performance. Whether physical, mental or emotional, we create a partnership that identifies obstacles, and sets goals to achieve breakthroughs and reach true balance in your life.
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