Safety. Artistry. Integrity.Skilled Nurses & Aestheticians Who Care
Our Simply Bella nurses and aestheticians strive to enhance your natural beauty through customized aesthetic treatments. With our help, you will become the most confident version of yourself, without feeling pressured, and will leave feeling satisfied and rejuvenated. Your face and skin are a reflection of the quality of our work, ethics, and years of experience.
Kristen Herina
APRN, FNP-C, MSN
With more than 15 years combined experience in the fields of nursing and advanced practice nursing, I am both a Family Nurse Practitioner and Aesthetic Nurse Injector. While practicing as a family nurse practitioner, I longed for a work environment that promoted positivity and creativity. I discovered the incredibly unique field of aesthetic nursing. A career that combines my desire to do what I love—learning and discovering new things—with my clinical judgment. Perfect Fit!
Through my advanced knowledge, I am able to create more comprehensive cosmetic plans. This allows the safety and artistry of aesthetics to be upheld.
My practices and skills are guided by integrity and honesty. As Simply Bella has grown over the past several years, we have added a number of nurse practitioners who are committed to the same values and follow the same principles. Our goal is to instill confidence in men and women so they can look and feel their very best.
XO, KristenMeet the teamNurse Practitioners and Nurses
Our Providers:
Brianna Gabbard
Nurse Injector | RN, BSN
I worked as a Paramedic in a prehospital emergency setting for about 14 years. I also spent 3.5 years working as an emergency room nurse. I currently have my Bachelor’s degree in nursing. After a journey of healing when my son suffered a life-threatening medical emergency, I changed some priorities in my life. I personally found a lot of healing in the self-care process and worked to become a nurse injector. I have loved giving men and women the opportunity to feel better about themselves. I want to encourage people through their own healing journeys and self-care, however they may look. I have worked extremely hard in life and try to become the best I can be to give optimal and excellent results. Others would say I am relatable and real. I am a fun-loving person full of compassion and encouragement. In my spare time, I enjoy spending time with my family doing anything outdoors. Overall, I have a love for life and want others to feel great about themselves. I would love to be a part of your journey.
xo, Bri
Kayla Tiller
Nurse Practitioner | APRN, FNP-C
I am a Family Nurse Practitioner with 10 years of experience in the nursing field. For me nursing has always been about helping others, educating them, and wanting them to know I am their voice and will always advocate for them. Kristen introduced me to the field of aesthetics. This field has not only given me ability to incorporate my values, but I also enjoy the artistry aspect. Being able to give my clients the confidence and glow from the inside and out is important to me. Simply Bella’s core values: safety, artistry, and integrity is another reason I wanted to join this incredible and knowledgeable team. Integrating my knowledge, creativity, and clinical judgment into the patient’s treatment plan allows me to individualize the care I provide. The aesthetic nursing field is a passion of mine and working with an amazing and truly caring team is a dream come true.
xo, Kayla
Paige Callahan
Aesthetician | Laser Specialist
I joined Simply Bella Aesthetics in August of 2023. I attended and graduated from Crave Beauty Academy for Esthetics in 2020. Then later I advanced my knowledge at the National Laser Institute. I specialize in skin care, laser hair removal, IPL (photo facials) microneedling, tattoo removal, and various other laser treatments. I have dedicated my career to understanding laser technology, the importance of safety, and the application of appropriate skin care assessments and treatments.
xo, Paige
Tiffany Mueller
Nurse Injector | RN, BSN
With over 8 years of nursing experience, much of my career was spent in a hospital setting, working in both surgical units and the GI lab. Though I always had a passion for aesthetics, it wasn’t until 2023, after meeting with Kristen and seeing the incredible environment she has cultivated at Simply Bella, that I decided to take the leap. Since joining the team, I’ve truly found my home in the world of aesthetics. The atmosphere here is warm, welcoming, and focused on safety above all. As an injector, I’m passionate about enhancing natural beauty with results that my clients can both see and feel. My specialties include neurotoxins, filler, microneedling, and skincare. I love building personal connections with my clients, collaborating to create tailored plans that help them look and feel their most confident. When I’m not working, you’ll find me spending time with my family- my husband Chad, our baby boy Ridge, and our boxer Vivianne. Staying active is a big part of our lives- we even own two Muay Thai gyms. We love to travel whenever we can, so I’m always excited to hear about your favorite destinations!
xo, Tiffany
Bridget Dwiggins
Nurse Injector | RN
I am a licensed Registered Nurse with more than 15 years of medical experience in a clinical professional and setting. I went into nursing to make an impactful difference on the lives of others, and I strive every day to honor that commitment. I have had the opportunity to dedicate most of my career to working with new technologies that focus on finding early-state lung cancer, which remains a life threatening and debilitating disease for many across the nation. I have also found a love for aesthetics, and I enjoy watching others light up and build confidence after their treatments. I find it exciting to see small changes make an impactful difference in people’s lives, and I love that I can help play a role in their journey. I joined Simply Bella because I believe in the overall mission of practicing in accordance to safety, artistry and integrity. Simply Bella provides the most up-to-date education and training to their nurses and adhere to a standard of treating others with the highest level of service that is offered in the industry. This knowledge allows me to constantly build upon my skills and treat patients in the most effective way possible. I look forward to meeting you and helping you achieve your desired and deserved look!
xo, Bridget
Megan Bellanca
Nurse Injector | RN, BSN
I am a nurse injector at Simply Bella Aesthetics. I graduated with my Bachelors of Science in Nursing from Missouri State University in 2021. I became a registered nurse and spent a few years working in a hospital setting as a pediatric hematology and oncology nurse. I have always had a passion for beauty and instilling confidence in others. I started learning about the aesthetic side of nursing and knew that it was my true passion. After several trainings and clinical hours spent with Kristen, I took the leap of faith I’ve always wanted to take. I left the hospital setting and fully emerged myself in the world of medical aesthetics. I work full time and see patients at both the Lake St. Louis and Wentzville Location. This industry has been so rewarding seeing people fall in love with their own natural beauty that I get to enhance. Come and see me here at Simply Bella Aesthetics, I would love more than anything to meet you.
xo, Megan
Brittany Zangriles
Nuse Injector | RN, BSN
I have been a Labor and Delivery and NICU nurse since graduating with my Bachelor's degree in nursing in 2015. Nursing is my passion, and the hospital holds a special place in my heart. I feel so blessed to be a part of the Simply Bella team and practicing in accordance to their mission statement: safety, artistry, and integrity. Through hands-on experience, training opportunities, and unlimited support, Simply Bella is truly the best! I am excited to help patients enhance their natural beauty through aesthetics and to help them feel their most confident and best self!
xo, Brittany
