Skip to content 
Katie Guest
BSN, RN
Founder & Master Nurse Injector
As the founder of Injecting Confidence, Katie blends her medical expertise with a sharp aesthetic eye, offering patients safe, clinically proven treatments that deliver natural, beautiful results. With over eight years of experience as a skilled cosmetic injector, she is known for her ability to enhance each patient’s features while preserving their unique beauty.
Passionate about continuous learning, Katie stays at the forefront of the latest advancements in aesthetics to ensure her patients receive the highest quality care. Her mission is simple yet powerful: to help individuals look and feel like the very best version of themselves.
Dr. Sameerah Wong
PA-C
Functional Medicine provider
Dr. Sameerah Wong, M.D. is a Board Certified Physician who has been in practice for over 19 years. Dr. Wong had always had an invested interest in health, beauty, wellness and the field of aesthetic and functional medicine. She applies her dermatologic procedural training to the latest practices and trends, functional medicine, as well as science to enhance the body’s natural ability to heal and repair. Her patients attribute her to having excellent bedside manner as well as the highest standard of care and professionalism. By combining her patient’s health and skin concerns with her expertise in aesthetic and functional medicine, she is able to achieve results that are tailored to each patient’s needs.
Dr. Wong is a graduate of the University of Iowa, School of Medicine, and completed her residency at The University of Colorado School of Medicine. She is a member of The American Academy of Family Physicians and The American Society of Laser Medicine and Surgery.
Ragi Griego
LA
Medical Aesthetician
Ragi, known as Ragi, is a Colorado native raised in North Denver. She is a proud mom to her daughter, Ariah, a dedicated scholar and volleyball athlete. Ragi attended Metropolitan State University of Denver, where she played Division II tennis for two years before following her passion for aesthetics. She graduated top of her class from Heritage College with an associate degree in Aesthetics.
Ragi Griego
LA
Medical Aesthetician
Ragi, known as Ragi, is a Colorado native raised in North Denver. She is a proud mom to her daughter, Ariah, a dedicated scholar and volleyball athlete. Ragi attended Metropolitan State University of Denver, where she played Division II tennis for two years before following her passion for aesthetics. She graduated top of her class from Heritage College with an associate degree in Aesthetics.
Practicing medical aesthetics since 2015, Ragi is deeply committed to her patients and specializes in creating personalized treatment plans to help individuals achieve their skin goals. She is highly trained in over 10 laser technologies for both face and body, allowing her to thoughtfully customize each patient’s care. Ragi’s goal is to help patients feel confident inside and out, making a meaningful impact that extends into their everyday lives.
Olivia Romero
Front Desk Concierge
Katherine Burkhart
Administrative Director
At Injecting Confidence medspa, located in Centennial, CO, you can benefit from the amazing effects of medical-grade skincare, advanced aesthetic procedures, and functional medicine.