Meet our staff
Cristina Refahiyat, Physician Assistant
Cristina is from Santa Rosa, California. She graduated cum laude and with highest honors in her major from University of California, Santa Cruz with a BS in Molecular, Cellular, and Development Biology. After finishing her undergraduate education she worked at Stanford University in the Hematology and Oncology Department. She then moved to Las Vegas, Nevada for her Masters’ degree in Physician Assistant Studies. After completing Masters’ degree she stayed in Las Vegas to Practice as a Dermatology Physician Assistant. She is a current member of the Society of Dermatology Physician Assistants.
Her patient-centered approach involves active participation in treatment decisions. Her clinical interests cover various skin conditions, including psoriasis, acne, hidradenitis suppurativa, atopic dermatitis, and skin cancers. She’s also skilled in cosmetic procedures, providing Botox and filler injections to help patients achieve a refreshed and rehydrated appearance.
Cristina and her husband relocated to Ogden to be closer to family and enjoy the area’s natural beauty. She is an outdoor enthusiast, enjoying activities like tennis, golf, hiking, and snowboarding, always emphasizing sun protection with SPF and protective clothing. She also cherishes spending time with her family, her husband, and their two sons.
Julie Barker, Master Esthetician
Julie Barker has been a Master Esthetician for over 16 years. She has worked with many different types of lasers doing laser hair removal, intense pulsed light (IPL), and radio frequency (RF) to start the list. She is an expert in various facial treatments, including Hydrafacial, microneedling, dermaplanning, chemical peels, and therapeutic facials.
She is certified in microblading and many types of body contouring treatments. Julie loves the esthetics industry and is known for creating customized beauty plans for all her clients. She loves what she does because witnessing the positive effects, such as increased confidence and a better overall outlook on self-care, among the people she takes care of brings her joy.
Julie shares her life with David, her incredible husband. Together, they have a daughter and four sons, three of whom are grown and leading fulfilling lives. Additionally, they have two daughters-in-law and four grandchildren.
She enjoys barre class, paddle boarding, traveling, and learning. She is currently taking classes in photography and interior design. Julie is well on her way to having the French language mastered. She has been on the Price is Right and loves dancing in the kitchen with David, aka the “Errand Boy”.
Sherene Larsen, Master Esthetician
Sherene is a Master Esthetician with over 16 years of experience, including three years as an esthetics instructor at the Davis Applied Technology College. She completed the Master Esthetician program with Fran Brown College of Beauty in 2007. Sherene is passionate about helping her clients with skin care needs and treatments. Sherene has extensive training with laser hair removal, chemical peels, microneedling, IPL, HydraFacials, microdermabrasion, acne treatment, microblading, and waxing.
What she loves about working in Dermatology is being able to help patients achieve their overall skin care needs and help them find the best regimen for their skin. She enjoys helping to her patients and answering all their skin health questions and concerns.
Sherene enjoys spending quality time with her friends and family in her free time. Her other hobbies include yoga, hiking, paddle boarding, snowboarding, and traveling.
Brandie Knowles, Nurse Injector
Brandie’s family is her greatest passion, being married for 25 years with five children and an appreciated son-in-law. She also relishes activities like trail running, hiking, sports, and supporting her children in their sports activities.
Jodi Frehner, Master Esthetician, Master Esthetician
With over 20 years of experience in skincare, Jodi is a trusted Master Esthetician who has helped countless individuals feel more confident and radiant in their own skin. Her passion lies in creating personalized treatment plans that not only improve skin health but also uplift her patients’ overall well-being. She finds it deeply rewarding to watch patients glow—inside and out—through every stage of their skincare journey.
When she’s not in the treatment room, Jodi treasures time with her family and enjoys the simple moments that keep her grounded and inspired.