Lisa Oppegaard

Ultra Barre & Groove 101 Instructor

From dancer to lover of wellness.  Lisa Oppegaard is a Billings native who is bringing a new kind of spa to Billings. After dancing her whole life and co-owning Diversity Dance Studio for the last 11 years, Lisa is the proud owner of Onyx Wellness. Lisa is a wife, mother, daughter, friend, and business owner, with a passion for health and wellness. Onyx Wellness is a studio and spa, bringing all things “good” for the mind, body, and spirit.   

Katy Weprin

Mat Pilates Instructor

Katy is a Los Angeles native, who’s source of Pilates and fitness inspiration draws from dancing and a balanced lifestyle. As a fully certified Pilates Method Alliance and Balanced Body Education Pilates and Barre instructor, Katy enjoys constantly learning about her craft to help her students grow to their own full potential. Some of her specializations include pre- and post- natal programming and modified sequences for improving back ailments and spinal pathologies. Katy strives to be known as someone that helps people feel freedom in their bodies and teaches a fitness method that celebrates our differences. Most importantly, she believes that improving one person’s wellbeing can positively impact the entire community. If you’re looking to spark a convo after one of her classes, she loves her sassy cat named Athena, camping, running, and loves a smaller city vibe!

Rachel Dehler

Chisel Barre, PiYo, and Intuitive Readings Instructor

A dancer since the age of 3, Rachel is a board certified holistic nutrition coach and Elephant Journal columnist who has mentored several up and coming writers. On top of holding degrees in both Education and Special Education, she is certified in both Ballet Barre and PiYo.


Rachel has taught dance and yoga across several studios and gyms over the past 15 years and will be combining her many gifts by bringing writing and creativity workshops as well as PiYo and Barre classes to Onyx.


An energy worker at heart, Rachel is also skilled in Numerology and Astrology. Both clairvoyant and claircognizant, she has provided life-changing intuitive and Numerology readings for people all over the globe.

Cara Gunhild

Yoga Instructor

Cara Gunhild Is a woman of many talents: Light worker, event guru, spiritual midwife, energy maven, creatrix, yogini, wordsmith, intuitive, empath...among many others. These tools are some of the many ways she holds sacred space for transformative healing. Cara has a Bachelor's Degree in International Relations from the University of Washington, is a RYT 500, as well as a childbirth educator and birth doula. Cara lives in Billings, MT with her two beautiful daughters and her labradoodle Luna. In Billings and the surrounding areas you can find her teaching yoga, hosting events and soundbaths, and building community.

Amanda Yarbrough

Yoga Instructor

Having started her wellness journey after becoming a mother 8 years ago, she realized the amazing responsibility it is to care for another person, at the same time discovering how important it is to care for herself in order to properly care for another. She is completely supported in this journey of self love by her wife, who encouraged her to follow her passion and become a yoga instructor as well as a certified health & wellness coach. You may know her around Billings as Wild Fox, her professional title, and she is just that with her wild hair and range of wellness endeavors, including her own sewing and alterations business. Her desire to keep herself and her family healthy and sharing that with others has lead her to where she is today. Teaching yoga for over 3 years, she brings a wide range of yoga styles to the room from restorative, a slow and steady paced practice encouraging a mindbody connection from a place of tranquility, to an energizing intelligently sequenced Vinyasa practice to spark that inner fire in all of us and power up our own passions. All while currently continuing to further her health and wellness education any chance she gets in hopes to add even more to her repertoire of knowledge that benefit the mind, body, and soul of herself and those around her.

Ann Hengel Lewis

Massage Therapist

Ann Hengel Lewis was born and raised in Minnesota, but spent most of her adult life in Montana. She has always been drawn to things that allow her to take care of others. She spent years in the healthcare field. Initially this was in a more administrative capacity, but she wanted to actually work with patients, so she moved in to different roles where she could participate in patient care. For many years, Ann had been interested in healing touch, and finally made the decision to go to school for Massage Therapy. Since passing her schooling and licensing exams, Ann has enjoyed her new chosen vocation, helping people with not only their day-to-day aches and pains, but also with chronic discomfort.

Subscribe for Updates

149 Shiloh Rd. Suite 6, Billings, MT 59102

Tel: 406-702-1477,

Hours of Operation

Tues-Thurs 9:00-6:30 PM

Friday & Sat 9:00-4:00 PM

  • Black Facebook Icon
  • Black Instagram Icon