The Team

Marichelle, NP


With clients from coast to coast, Marichelle Stoppenhagen N.P. from My Skin Medical Spa in Costa Mesa is always incorporating new technologies into her practice as she works to meet each client’s’ unique aesthetic demands. Her focus on natural, youthful-looking beauty has set her apart as an industry leader in Southern California as she delivers reliable results that accentuate her clients’ best features. Her passion for making men and women feel good and look even better has driven her to provide exceptional services in a caring environment.

Dr. Agner, MD


Dr. Maria Teresa Agner, M.D. has been at the forefront of MySkin's unique vision for spa services since opening its doors in 2006. In her ongoing role as MySkin's Medical Director, Dr. Agner remains responsible for ensuring client safety, comfort and satisfaction with the various products and procedures utilized by MySkin staff. Dr. Agner was trained in Internal Medicine at the University Medical Center in Las Vegas, Nevada and has been a practicing physician for more than three decades. In addition to caring for her patients and ensuring best practices at MySkin, Dr. Agner enjoys gardening, reading and indulging her inner fashionista.

Elizabeth Geyer, RN


Hello everyone, I’m Elizabeth and I am a nurse injector here at MySkin! I’ve been a registered nurse for 15 years and a lover of all things beauty since I was a young girl. Most of my nursing days have been spent in critical care attending to the sickest patients in our community. I loved that part of my career so much, but decided to follow my passion of natural beauty enhancements and join the world of aesthetics. I am practicing here at MySkin alongside our amazing team! I provide multiple services including injectables and lasers. I am also a skincare lover and I’m obsessed with beautiful lips! I’d love for you to come and see me soon!

Dana Riccio

Medical Aesthetician


I've had the pleasure of working with Myskin Services since 2014 collaborating directly with Marichelle to develop and customize skin care protocols. I work closely with clients, preparing the skin and treating ongoing conditions prior to each patient's cosmetic procedure. Using physician-dispensed cosmeceuticals in conjunction with personalized facials and peelsheal practices, I ensure that our MySkin patients leave our spa with nourished skin that immediately radiates natural-looking beauty and youthfulness.

Dorie Swanson

Spa Director


Dorie has been a part of the MySkin team for 7 years following her exciting tenure as a clothing designer in the high-end fashion industry. Passionate about aesthetics and quality skin care, Dorie plays a critical role in MySkin's patient-advocacy and education campaigns, regularly coordinating spa functions for loyal clientele, social-media awareness of advancements in the aesthetic field, and customer-care practices and procedures for quality assurance. Dorie's warm and welcoming attitude contributes to MySkin's remarkable referral-based business model that embraces a friends-and-family focus for marketing.

Jamie Mahtesian

Certified Ultherapy Technician


Jamie has been a licensed Medical Ultrasound technician for 10 years. Born and raised in Southern California, Jamie has an undeniable love for beauty, health and fitness. She is detailed oriented, and reliably keeps MySkin's patients well-informed before, during, and after their ultherapy procedures. Her caring methods put patients at ease and her unyielding commitment to excellence has been a vital factor in MySkin's growing popularity and success in Orange County. Jamie's results speak for themselves and patients leave feeling rejuvinated and reinvigorated as a result of their time at the spa.

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