About
Dr. Leto Quarles brings two decades of clinical experience to her Boulder practice, Take Two Health. She earned a Bachelor of Science in Biomedical Engineering at Case Western Reserve University and continued there with graduate work in the same field. She then completed her medical degree at Ross University School of Medicine, her Family Medicine residency at the University of Illinois - Rockford, and a fellowship at the University of Utah. She holds board certification in Family and Community Medicine.
Over her career, Dr. Quarles has worked with patients, hospitals, clinics, international medical teams, students, residents, and specialists across many disciplines. She developed the AntiFragile model of trauma-informed care and brings advanced training in psychoeducation, cognitive-behavioral approaches, somatic and body-based therapies, expressive arts, nutrition, and lifestyle medicine. Her clinical passions include LGBTQIA+ health, gender-affirming care, neurodiversity, stress and mental health, chronic disease and disability management, and collaborative deprescribing. She runs her practice on a core conviction: that healing happens in partnership with an empowered, informed patient.
Education & Training
Undergraduate
Case Western Reserve University, BSBME (Biomedical Engineering) and graduate work in Biomedical Engineering
Medical School
Ross University School of Medicine
Residency
Family Medicine, University of Illinois - Rockford
Fellowship
University of Utah
Certifications
Conditions Treated
Who is Dr. Quarles right for?
Dr. Quarles serves patients of all ages who want a physician deeply engaged in their whole-person health. Adults and families navigating chronic disease, disability, or complex mental health needs find her AntiFragile and trauma-informed approach particularly valuable. LGBTQIA+ patients and those seeking gender-affirming care receive knowledgeable, affirming support. She also works well with neurodiverse patients, including those managing ADHD, autism, and learning differences. Patients who want a collaborative voice in their own care and records fit naturally into her practice model.
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Frequently Asked Questions
Dr. Quarles treats a wide range of conditions, including chronic disease, disability, LGBTQIA+ health concerns, gender dysphoria, trauma, anxiety, depression, insomnia, ADHD, autism, chronic pain, cardiometabolic conditions, and addiction. Her training spans both physical and mental health, so she addresses many concerns that typically require multiple providers.
Dr. Quarles developed the AntiFragile model as her framework for trauma-informed care. The model focuses on harnessing growth through adversity rather than simply managing symptoms. She integrates psychoeducation, cognitive-behavioral approaches, somatic therapies, and expressive arts into this work.
Yes. Dr. Quarles provides queer-positive and gender-affirming care, including hormone therapy. She welcomes patients across the full spectrum of gender identity and sexual orientation, regardless of how - or whether - they choose to label themselves.
Dr. Quarles has advanced training in psychoeducation, cognitive-behavioral approaches, somatic and body-based therapies, expressive arts, nutrition, supplements, and medications for mental health. She integrates these tools into individual care and also offers community workshops on mental health topics.
Yes. Dr. Quarles sees patients with ADHD, autism, learning disabilities, brain injury, and other forms of neurodiversity. She approaches neurological differences as part of the normal human range, not as deficits to be corrected.
Dr. Quarles has spent over a decade in medical training and two decades working as a physician. Her experience includes patients, hospitals, clinics, international medical teams, and teaching students and residents.
Dr. Quarles acts as an advocate and ally for patients managing chronic or disabling conditions. She centers the patient's own priorities and lived experience, helping navigate medical, legal, and advocacy needs alongside clinical care.
Yes. Dr. Quarles offers collaborative deprescribing - a structured, patient-centered process for safely reducing or stopping medications that no longer serve a patient's health. She works through this process together with each patient, not unilaterally.
Doctor profile last updated April 11, 2026