Our Team

Meet our dedicated team specializing in chronic and degenerative illnesses, functional restorative medicine, and longevity therapy!

Dr. Dan Kellams, DACM, FMP, L.Ac

A photo of Dr. Dan Kellams
Clinic Director / Founder

Dan Kellams grew up in southern Indiana, where he attended Indiana University and then University of Louisville in Louisville Kentucky for sports sciences.

Dan went on to attend the acclaimed American College of Acupuncture and Oriental Medicine (ACAOM) where he received his training and studies in acupuncture, herbology, Tai Chi, Tui-Na (oriental massage) and Qi-Gong. Dan earned his Master’s Degree in Acupuncture and Oriental Medicine in 2009.  He completed his clinical internship at the prestigious Methodist Hospital in the Houston Medical Center where his passion for advanced integrative therapies grew. Dan earned his DACM specializing in integrative approaches in 2020.

Dan has been heavily involved in integrative, functional and restorative medicine for over a decade. He enjoys both being a clinician, an avid researcher and an educator in integrative therapies as well as proponent of whole body care strategies that focus on the central idea that “the power that made the body has the power to heal the body.” Aside from being the Wellness Coordinator at Peak Vitality in Denver Colorado, Dan also travels the country to consult, educate and coach other clinicians on auto-immunity, chronic illness and difficult health cases.

A photo of Dr. Dan Kellams

Dr. James Parsons, DC

Dr. James Parsons
Founder

Dr. James Parsons is a highly skilled and dedicated Chiropractor, with a career spanning nearly three decades. Dr. Parsons received his Doctor of Chiropractic (DC) degree from TCC and furthered his clinical skills with additional studies in nutrition, functional medicine and neurology. In 1994, Dr. Parsons embarked on an entrepreneurial journey, establishing three successful clinics in Houston, Texas (two clinics), and Denver, Colorado (one clinic). He works to make sure the clinics embody a holistic approach to health and wellness, offering a variety of comprehensive patient care including chiropractic, physical therapy, nutritional counseling, and functional medicine protocols.

Over the years, Dr. Parsons has treated over 10,000 patients, significantly improving their quality of life. With his extensive career and careful watch on patient outcomes, he has found that the most successful approach is through personalized treatment plans, which focus on patient wellness and disease prevention.

Dr. Parsons is not just a healthcare provider, he is also a business coach. He has mentored several dozen doctors over the years with their clinical and business skills set ensuring they continue to thrive and serve the community. He is a passionate healthcare advocate dedicated to enhancing the quality of life for his patients and healthcare providers.

Dr. James Parsons

Terra Heit, RN, MSN, FNP-C

A photo of Terra Heit
Assistant Medical Director
Terra was born and raised in Colorado and attended the University of Colorado where she received a Bachelors in Biology and Integrative Physiology. She then attended Nursing School and has worked as a nurse in different areas of medicine. She has worked in Emergency and Urgent Care as well as Labor and Delivery at Lutheran Medical Center. Since starting her career here at Peak Vitality Terra has gone through advanced training in restorative orthopedics, functional medicine, as well as state-of-the-art training in facial aesthetics which includes restorative facial injections with PRP as well as fillers and Botox. She has also enjoyed learning the functional side of medicine and integrating it with traditional medicine. When not working to help people live their healthiest lives she loves being a mom and spending time with family and friends.
A photo of Terra Heit

Nikki Farris

Nikki Farris
Medical Assistant
Nikki was born and raised in the mountains of Colorado where she later received her Bachelors in Integrative Physiology from the University of Colorado. She is a certified wilderness EMT and has experience working as a ski patroller, ER technician, medical assistant, and caregiver. In her free time she is an artist working on anything from pottery to sewing. She also loves spending quality time with her two dogs, skiing, hiking, or kayaking. Soon she will be attending nursing school to further her education!
Nikki Farris

Jennifer Gibbons, RN, MSN, FNP-C

A photo of Jennifer Gibbons
Senior Health Advisor

Jennifer is a native Houstonian and attended UTMB for her Bachelors in Nursing, UTHSC Houston for her Masters in Nursing and then became a board certified family nurse practitioner. She has over 25 years experience in nursing and has worked in various areas. Jennifer is a breast cancer survivor who used her diagnosis to redirect her career path into one of health and wellness. Her mission in life is to help people build lifelong habits that will create physically, emotionally, spiritually and strong human beings. Since starting her career at Peak Vitality as a health and wellness coach, Jennifer works with clients under a functional medicine framework, pursuing progress over perfection, so that steps they make to improve their health are sustainable and lifelong. She combines evidence-based practice modalities including functional medicine, supplementation, nutritional and lifestyle recommendations to achieve results. She is passionate about helping others realize their innermost potential and her greatest desire is to see people optimizing their health and reversing disease. When not working to help empower others to create and live their best life, she is living hers by teaching Jazzercise, traveling or spending time with her family and friends.

A photo of Jennifer Gibbons

Darlene Iriarte, BA, CNTP

A photo of Darlene Iriarte
Health Advisor / Nutritionist

Darlene brings in the whole body connection as she shows how nutrition and lifestyle adjustments can positively affect health. Darlene focuses on education and coaching patients through personalized, food and lifestyle planning, nutritional deficiencies, as key components in her holistic health coaching and functional nutrition protocols.

Darlene has a BA in International Business and Spanish, and worked with international companies, focusing on process improvement, and relationship building. She changed career paths after trying to improve chronic health ailments, with little help from conventional medical health care practices. She focuses of the powers of nutrition and getting to the underlying cause of illness. This, plus raising two children on holistic wellness principles, was the motivation for becoming a Certified Nutritional Therapist Practitioner.

She is a member of Functional Nutrition and Micro-biome forums, has volunteered in community-based organizations, advocacy for neglected and abused children, tutored Spanish to students with developmental disabilities, and wellness education for underprivileged families in Hispanic communities.

A photo of Darlene Iriarte

Zack Gutman, MSTCM, LAc

Zack Gutman
Acupuncturist
Zack Gutman graduated from the Colorado School of Traditional Chinese Medicine (CSTCM) in 2013. As a nationally certified Acupuncturist and Chinese Herbalist, Zack is able to help others connect with their greatest levels of health and wellness through this time tested and contemporary relevant form of medicine. Zack is also passionate about educating TCM students and the general public about the positive applications and potential uses for TCM. Zack currently teaches at CSTCM where he was the public clinic director from 2019-2021.

Zack believes healing is a multi-dimensional approach and dynamic which includes many modalities available to evaluate and improve a person’s health. In his personal time, Zack enjoys hiking, gardening, cooking, practicing tai qi and qi gong, and playing table tennis and pickleball.

Zack Gutman

Lisa Berthelsen

A photo of Lisa Berthelsen
Senior Case Manager / Virtual Team Manager
A native to Atlanta, GA, Lisa has spent her career in Health and Wellness in a natural healthcare setting. Lisa is passionate about helping patients with natural solutions for their healthcare challenges. With over 40 years experience in the industry, Lisa not only works with patients to make sure they are taken care of, but she also trains and coaches doctors all over the country in natural healthcare protocols. A mom to three young men and two dogs, Lisa is active and values the return of hard work, both physically and mentally.
A photo of Lisa Berthelsen

Shelley Leigh

Shelley Leigh
Executive Assistant

Shelley is a native to Colorado, where she began her career in the healthcare field in 2006. Throughout her many years of experience she has developed skills not only in the reception and front desk roles but also assisting Doctors in patient care and procedures. Along the way she discovered that healthcare was a passion of hers and she loves being a part of a team helping patients to achieve their health goals.

She has been working with Dr. Kellams’ since July 2020 and has recently moved into the position of Executive Assistant for the practice. She facilitates patient flow and ensures a smooth treatment process for both patients and team members alike.

Shelley and her husband live in Northern Colorado with their 3 young children.

Shelley Leigh

Isabelle Apodaca

Isabelle Apodaca
Scheduling Coordinator
Isabelle is currently a student at Red Rocks Community College where she is pursuing a career in Psychology and will transfer over to Metro State University to continue her education. Her hope is to eventually enter one on one Talk Therapy to help people by giving them a chance to simply talk about what they are feeling. She enjoys listening to others and being a helping hand. That is why she loves being a part of the Peak Vitality team, because she gets the opportunity to help patients consistently with whatever they need. In her free time, Isabelle likes to be outdoors, spend time with friends and family, and go shopping from time to time.
Isabelle Apodaca

Annie Fougerousse

Annie Fougerousse
Assistant Office Manager

Annie grew up in League City, Texas and received her Bachelor of Science in Marine Biology at Texas A&M University at Galveston. After graduating, she moved to Denver to start her career at Peak Vitality. She is fascinated by the intricacies of functional medicine and loves to see first hand the impact it has on people’s lives. And, with her very detail-oriented mind, she enjoys helping the office work as efficiently and smoothly as possible. She is excited to continue growing and learning with the amazing team at Peak Vitality.

In her free time, Annie enjoys scuba diving, exploring the outdoors, baking and crafting. While not actively pursuing Marine Biology, she is still very passionate about marine life and all surrounding aspects!

Annie Fougerousse

Jessica Westra

Jessica Westra BS Dietetics and Human Nutrition
Health Advisor
Jessica Westra, originally from Michigan, brings a wealth of knowledge in nutrition and wellness with a Bachelor’s degree in Dietetics and Human Nutrition from Eastern Michigan University. Jessica takes pride in her interpersonal skills, which helps her connect with clients on a deeper level and provide tailored nutrition guidance. Her comprehensive training allowed her to gain experience across multiple settings, including long-term care, ICU, outpatient counseling, sports nutrition, and food service. With her expertise in addressing specialized nutritional needs, she excels in providing personalized care to a diverse range of clients.

Her holistic approach emphasizes not only physical health but also emotional and mental well-being, ensuring that patients receive care that addresses all aspects of their lives. She stays on the cutting edge of nutrition research, using her knowledge to empower her patients to adopt lasting healthy habits.

When she’s not working, Jessica enjoys the natural beauty of Colorado through snowboarding, hiking, and camping, embracing her love for the outdoors.

Jessica Westra BS Dietetics and Human Nutrition

Carrie Anderson

Carrie Anderson
New Patient Coordinator
Carrie has lived in Colorado for the last 30 years. She has 4 children that are now grown and raised. Carrie has a passion for helping people and that is what brought her to Peak Vitality. She has worked in healthcare for many years.She has a deep heart and a welcoming attitude. She resides on the Western Slope of Colorado with her husband and dog Riley.
Carrie Anderson

Shaylee Leavitt

Shaylee Leavitt
Health Advisor
Shaylee was born and raised in Salt Lake City, UT and relocated to the Las Vegas area in 2009. She completed her Bachelor’s degree at Southern Utah University with an emphasis in Nutrition, Communication, and Psychology. She has spent over 15 years in the Fitness and Nutrition Industry, where she has received certifications to teach and lead the YMCA’s Diabetes Prevention Program, teach group exercise classes, nutrition classes, and has helped in eating disorder recovery. She is deeply passionate about creating a whole picture of health including spiritual, emotional, mental, and physical health. Through her unique life experiences, she has gained a deep empathy for people and enjoys working alongside them to help them find confidence in their lives as they make changes in their health that will empower them to live a more wholesome and intentional life.

In her freetime, she loves spending time with her two children and husband of 15 years. She spends a lot of time focusing on her well-being which includes running marathons, lifting heavy weights, reading the most recent bestseller or memoir, studying nutrition and psychology, traveling, and helping others.

Her life motto is “Patience, Persistence, and a Positive attitude will always Produce results.”

Shaylee Leavitt

Kellsie Horsfall

Kellsie Horsfall Health Advisor
Health Advisor
Kellsie was born and raised in Colorado, and earned her Bachelor of Science degree in Healthy Lifestyles Coaching from Arizona State University. She is a dedicated Functional Medicine Certified Health Coach with a lifelong commitment to health, wellness, and personal transformation. She developed an early love for health and fitness that blossomed into a passion for Functional Medicine. Gaining deep insights over the years into holistic health approaches that empower people to take charge of their well-being, she finds purpose in guiding her clients toward balanced and sustainable lifestyle changes that help them regain control of their health.

Living in Colorado with her husband and their dog, Kellsie thrives in the outdoors and enjoys a wide array of activities, including hiking, camping, skiing, and exploring the beautiful Colorado mountains. She also loves traveling, reading, working out, and photography. Kellsie is passionate about helping her clients and equipping them with the tools they need to build resilient, vibrant lives.

Kellsie Horsfall Health Advisor

Doug Minton, MD

A photo of Doug Minton
Medical Director

Dr. Minton was born in Belle Fourche, SD, and grew up in Utah. He attended the University of Wyoming, and graduated with a B.S. in Zoology. He attended medical school at the University of Colorado’s Health Sciences Center, and began his residency in Obstetrics and Gynecology at St. Joseph Hospital in Denver, which he finished in 1988. He has been a partner at Westside Women’s Care in Wheat Ridge, CO and Arvada, CO since that time. He is a past president of the medical staff at Lutheran Medical Center in Wheat Ridge, CO. Dr. Minton is board certified in Obstetrics and Gynecology, as well as certified in Age Management Medicine through Cenegenics.

Dr. Minton encourages patient and family involvement with healthcare decisions, with a preference in lifestyle changes and natural therapies when at all possible. His personal philosophies towards healing and health align directly with Peak Vitality and the Premier Med Group. He started in private practice in 1988. Doug is married and has three children. He enjoys sailing, scuba diving, theater, reading and hiking with his family.

A photo of Doug Minton

Your Health Starts Here

Flexible and same-day appointments.

Or call us at 720-504-8068

Your Health Starts Here

Flexible and same-day appointments.

Or call us at 720-504-8068