Carl Seger, MD
Physician
Dr. Carl Seger is a board-certified concierge physician. He received his undergraduate degree in Molecular Biology at the University of Wyoming and then completed medical school at the University of Washington School of Medicine in Seattle, Washington. He completed residency at the University of Utah, where he was a Chief Resident and went on to do a fellowship in Medical Education.
Dr. Seger has also received in-depth, specific training on trauma-informed care and spiritual integration from Naropa University in collaboration with Lykos (formerly the Multidisciplinary Association for Psychedelic Studies).
Dr. Seger practices personalized preventive medicine. He integrates lifestyle interventions, precision medicine, and a bio-psychosocial framework into his practice, helping you achieve physical, mental, emotional, and spiritual health.
Outside of medicine, Dr. Seger enjoys outdoor activities including trail running, mountain biking, skiing, snowboarding, and spending time with his wife and three children in Steamboat Springs, Colorado.
Julia Priest, NBC-HWC
Health Coach
First and foremost, my bio will tell you what I have done, but not what we will do together. I truly believe that all change comes from a knowing of self and I am honored to collaboratively coach you in that pursuit.
My educational background was developed by my desire to understand the human body and assist people in their ability to use their own. I studied both exercise science and psychology at the University of Wisconsin-Eau Claire.
I had the great opportunity to coach endurance athletes which has included working with the professional and amateur athletes. As I worked in this field, I grew an appreciation for what the body was capable of and looked for ways to help maintain that function. I pursued massage therapy licensure and currently practice cupping therapy, deep tissue and myofascial release.
As I continued in my pursuit of understanding health, I completed a precision medicine fellowship that allows me to coach with awareness of epigenetics.
Between working with athletes, providing bodywork and leading teams I grew a profound curiosity for why the mind and body interact the way that they seem to. I continue to pursue education around mindfulness and the awakening to self. I am fascinated with behavior change and our potential to experience this life..
Sarah Aitken, RN, MS, WHNP/FNP, MHP, NBC-HWC
Care Coordinator
At Manifest Health, patients discover a rare kind of healthcare partnership, one in which their most important health goals aren’t just heard but become the compass for every decision. As Care Coordinator, Sarah orchestrates the intricate details of each patient’s health-optimization journey, working hand-in-hand with Carl, Hillary, and Julia to ensure nothing falls through the cracks.
Her path to this role was anything but conventional. As a retired Nurse Practitioner who once ran her own solo practice, she wore every hat imaginable: provider, receptionist, medical assistant, lab tech, troubleshooter, and occasionally miracle worker. Those years of controlled chaos gave her an invaluable gift – the ability to know each patient’s story by heart and create a healthcare experience that felt personal rather than procedural. Now, surrounded by a team that shares her philosophy, she brings that same fierce commitment to every patient who joins the practice: You matter here, and we’ll move mountains to help you thrive.
Her expertise runs deep in metabolic health, where she holds specialized accreditation in reversing prediabetes and early type 2 diabetes, a field that ignites her passion for helping people reclaim their best health.
Beyond healthcare, she enjoys woodworking, crafting everything from furniture to cabinetry. Together with her husband, she transformed a Sprinter van into a fully customized mobile haven, perfect for “glamping” adventures across the country. Their twin sons have flown the nest, leaving her hopeful for future grandchildren, though she’d be equally delighted to enjoy the various family grand-dogs.
Hillary Seger, MD
Physician
Dr. Hillary Seger brings deep compassion, insight, and clinical expertise to her work at Manifest Health. Known by her patients as an exceptional listener—empathetic, thoughtful, and intelligent—she offers a uniquely holistic approach to women’s health, drawing from both her conventional medical training and her specialized background in integrative care.
Board-certified in Obstetrics and Gynecology, Dr. Seger practices wholistic women’s health across all stages of life. She is passionate about supporting patients through hormonal transitions, optimizing long-term health, and treating complex, chronic conditions. In addition to her core work in women’s health, Dr. Seger is certified in Psychedelic-Assisted Therapy through Naropa University, adding a trauma-informed, mind-body perspective to her care—especially meaningful for patients navigating emotional or physiological challenges.
Originally from Colorado, Dr. Seger was raised in rural Alaska. She completed her undergraduate studies at Washington University in St. Louis and earned both her MD and MPH from the University of Washington in Seattle. She completed her residency in Obstetrics and Gynecology at the University of Utah before returning to Alaska to practice and start a family. After several years in rural medicine—including in Oregon and Alaska—she and her family returned to Colorado to be closer to extended family and embrace the mountain lifestyle.
Outside of her clinical work, Dr. Seger finds joy skiing, biking, and camping with her husband and three children.