
Devon Nelson, FNP, IFMCP
Primary Care, Functional Medicine
Devon Nelson is a a Board Certified Family Nurse Practitioner (FNP) and a Certified Practitioner with the Institute for Functional Medicine (IFMCP). Devon received her Bachelors of Science in Nursing at Franciscan University of Steubenville and her Masters of Science as a Family Nurse Practitioner from Regis University of Denver.
Devon began her career as a nurse at University Colorado Hospital in the Cardiac unit. She then moved moved to Bella Health + Wellness in Englewood, Colorado, in August of 2016 where she worked first as a nurse and then as a nurse practitioner with the Family Medicine team.
Devon has a passion for holistic, natural medicine. She believes open, transparent communication with patients with quick follow up and decisive action is the best way to foster authentic healing and wholeness. Devon is a patient’s practitioner.
“What matters most is connecting with my patients, understanding their unique journeys and letting them know I hear them, and I care for them as individuals. The Big Life model makes doing something different in health care finally possible. “
Devon Nelson, FNP-BC, IFMCP

Christy Garbus, FNP-C, MSN
Family Medicine, Functional Medicine, IV Hydration, Ozone, Muscle Testing, Hormone Replacement
Christy Garbus is a Certified Family Nurse Practitioner through WGU. She also has her Master’s in Nursing Education from Regis University in Denver.
Christy guides the Big Life Family Medicine team. Passionate about root cause, evidence-based medicine, she is also a critical part of our Functional Medicine and Muscle Testing disciples. Christy guides patients through detox protocols designed to heal the gut and restore wellness.
Christy has vast experience in emergency and cardiac medicine from her years as a nursing lead at Swedish Hospital. She cut her teeth in primary care from her time as Nurse Manager at Bella Health + Wellness in Englewood. Christy is certified in fertility education.
Perhaps Christy’s zeal comes from her own experience as a former functional medicine patient. She actually lives the journey she guides patients on.
An avid adventurist, Christy is most proud of the work her husband, a Colorado fire fighter, and she do to teach her two children a love for the outdoors and to instill a passion for serving one another.
“It’s a privilege to walk side-by-side with my patients as they discover the healing power of their own bodies. When we remove the junk and the toxins that we all pick up along the way and replace that “bad stuff” with true nourishment, we discover that we were made to feel good and to live full, rich lives. The path to wellness is amazing!”
Christy Garbus, MSN, RN

Carl White, FNP
Primary Care, IV Hydration, Ozone, and Joint Injections
A strong advocate for taking a proactive approach to wellness, Carl has been a Family Nurse Practitioner since 2020. He is a graduate of the University of Northern Colorado. Before becoming a Nurse Practitioner, Carl worked for six years as a nurse in the Critical Care field.
Carl leads the Primary Care team at Big Life. Rooted in the belief that service and giving back are important, in addition to full time work at Big Life, Carl is also currently serving in the US Air Force with an Aeromedical Evacuation unit.
Carl and his wife Emily have three young children. You can find them out and about in the Colorado Rockies hiking, mountain biking, and camping.
“I didn’t enter medicine to sit on the sidelines. I entered medicine to ensure my life served others’ most critical needs. Because of our unique model, practicing Family Medicine at Big Life allows me to build deep relationships with my patients and walk with them toward renewed strength and vitality. I love my job.”
Carl White, FNP

Alisa Burkhalter, FNP-C
Midlife Medicine, Hormone Replacement Therapy, Medical Aesthetics, Weight Loss
Alisa Burkhalter is a Board Certified Family Nurse Practioner. Alisa is dedicated to partnering with patients on their journey to wellness, helping them feel their best both mentally and physically. Her passion lies in midlife medicine, with a special focus on supporting and treating women through their menopause transition.
Alisa attended the University of Northern Colorado, where she received a Bachelor of Science in Psychology. She then pursued her interest in nursing, graduating from the University of Colorado Health Science Center. While working in labor and delivery, she completed her Master of Science in Nursing in 2007. Her provider background includes gynecology, hormone replacement therapy, medical weight loss, and regenerative aesthetics.
Alisa is a Colorado native. She enjoys living in Littleton with her husband, two sons, and her two hound dogs.
“Medicine is about recognizing the whole person is in front of me. We are not the same today as we were yesterday. Our bodies change as we age. But that doesn’t mean the best part of our journey is not ahead! I optimize wellness, especially in midlife – for a full, big life.”
Alisa Burkhalter, FNP-C

Morgan Wills, LE
Regenerative Aesthetics
Morgan Wills is a Licensed Aesthetician (LE) specializing in regenerative aesthetics, with a passion for helping patients achieve healthy, radiant skin from the inside out.
She combines advanced aesthetic treatments with a science-backed, holistic approach to skin health. Her passion for exploring new technologies to help patients achieve the very best results reflects in her commitment to ongoing learning and patient education.
With a focus on regenerative modalities—such as collagen-stimulating treatments, advanced facials, and skin rejuvenation therapies—Morgan believes in enhancing the skin’s natural ability to repair, restore, and glow. The goal at Big Life is not to make you look like someone else or to create an artificial, overly enhanced effect in the aesthetics’ chair, but to bring out the natural beauty of each patient and restore their dermal health.
Outside of the treatment room, you will find Morgan reading a book, drinking a matcha, or spending time with her family and fiancée. She’s adventurous, caring, and one of the best aestheticians in the Denver area.
“Feeling good and looking your best is about authentic dermal health – the kind of care that actually restores the skin and enhances our own, natural beauty. There’s simply so much that can be done and so many ‘wows’ you’re going to receive.”
Morgan Wills, LE

Jacquelyn Butler
Primary Care
Jacquelyn has been a Certified Family Nurse Practioner for over ten years. She received her undergraduate and graduate training at Vanderbilt University in Nashville, Tennessee.
- Her area of specialty is Primary Care
- Her credential is FNP
A military family (her husband is a fighter pilot in the Air Force), she recently relocated to Colorado from Las Vegas. There, Jaks worked at Smart Medical Care and Alamogordo Family Health Center, offering primary care to families across the Metro area, including the underserved. She’s good under pressure, ever smiling, and thorough in her approach. She’s thrilled to call Colorado her new long-time home, and Big Life patients agree.
She’s been an incredible fit in our clinic.
Welcome, Jaks! We’re thrilled to have you!
I can’t tell you how excited I am to join a team that considers the patient experience above all. My goal is to listen first, ask good follow-up questions, and ensure patients leave with a care plan that makes them truly well.
Jacquelyn Butler
