Nashville, TN
At Genesis Lifestyle Medicine in Nashville, we are passionate about helping you achieve total wellness with personalized care that helps you look and feel your absolute best.
Our Providers
Brittany Johnson, NP
Brittany Johnson, NP is a Family Nurse Practitioner with extensive experience in weight loss therapy, hormone optimization, women's health, aesthetics, sexual wellness, and patient education. As a provider, she is committed to delivering personalized treatment plans tailored to each client's unique goals. She values partnering closely with her clients throughout their journey, celebrating every milestone along the way to their transformation.
Timberley Zimmerman, Clinic Director
Timberley Zimmerman, LME, is a highly sought-after Master Medical Aesthetician with more than 20 years of experience in advanced aesthetics, skin rejuvenation, and non-surgical anti-aging treatments. A longtime fixture in East Nashville’s beauty and wellness community, Timberley previously owned and operated a successful medspa for 11 years, building a loyal clientele through her expertise, artistry, and genuine passion for helping people look and feel their best.
Known for her warm personality and patient-centered approach, Timberley values building genuine relationships and creating a welcoming experience for every patient who walks through the door. She is especially passionate about supporting women through the physical and emotional changes that can accompany hormonal transitions. Timberley takes the time to understand each woman’s unique concerns and goals, helping create individualized wellness and aesthetic plans that may address concerns such as fatigue, brain fog, low energy, changes in skin health, and overall vitality.
Timberley is also highly skilled in Medical Weight Loss, GLP-1 therapies like Semaglutide and Tirzepatide and non-addictive options like phentermine. She is passionate about CoolSculpting, Emsculpt, Morpheus8, and Emsella to help clients look and feel their very best!
Blending cutting-edge aesthetic technology with highly personalized skincare regimens, Timberley takes a comprehensive approach to creating healthy, radiant, natural-looking results. Her philosophy is simple: great aesthetics should enhance your natural features—not change who you are.
Throughout her two decades in the industry, Timberley has had the opportunity to work alongside leading dermatologists and under physician supervision, developing extensive expertise in advanced skin health and pre- and post-operative skincare. She holds multiple advanced aesthetic certifications and continually expands her knowledge to stay at the forefront of evolving technology, treatment techniques, and evidence-based skincare.
Timberley specializes in advanced aesthetic treatments designed to address skin health, rejuvenation, texture, tone, and the visible signs of aging. Her clientele includes the general public as well as celebrity clients who trust her discretion, experience, and meticulous attention to detail.
At the heart of Timberley’s practice is her passion for creating personalized, long-term beauty and skincare plans. Rather than taking a one-size-fits-all approach, she listens closely to each patient’s goals and develops thoughtful aesthetic treatment strategies designed to support their skin health and help them achieve results that feel authentic to them.
Beyond her technical expertise, Timberley is known for her vibrant personality, quick sense of humor, and infectious enthusiasm for aesthetics. She believes that feeling comfortable, heard, understood, and genuinely cared for is an essential part of the experience. Her warm and welcoming approach is one of the many reasons patients return to her time and time again.
Today, Timberley brings her extensive experience, advanced training, and passion for transformative aesthetics and skincare to Genesis Lifestyle Medicine, where she is dedicated to helping patients elevate their confidence, support their well-being, and achieve exceptional, personalized aesthetic results.
Outside of her professional life, Timberley’s roots run deep in the hills of Tennessee. She was raised on a 111-acre farm in a small town spanning just one mile, with only one traffic light, an upbringing that shaped her appreciation for authenticity, hard work, and the simple things in life. Today, she still owns that farm with her husband and enjoys returning to the peace and beauty of the place she has always called home.
Timberley embraces her love of all things vintage. She is an entrepreneur, owning both an Estate Sale Company and a Comedy Club business with her husband and for fun, she likes shopping flea markets for unique treasures. When she isn’t immersed in the world of aesthetics, you can find her hiking with her husband and eight-year-old daughter in the Great Smoky Mountains, fishing on the lake, or enjoying time in Jamaica with her family. Timberley is also a very proud Catholic who spends a lot of her time at Mass and is heavily involved with her church community.
One of Timberley’s favorite philosophies—and one that reflects her approach to aesthetics—is:
“Beautiful skin is not about becoming someone else—it’s about bringing out the very best version of you.”
Our Leadership
Alex Spinoso - Co-Founder, CEO | Chief Medical Officer
Brent Messer - Co-Founder, CEO
Kara McClanahan - Chief Operating Officer
Molly Caneday - Senior Director of Marketing
Gianna Fusco
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