Meet the RejuvinAge Team
Personalized care begins with people who listen. Meet the team committed to thoughtful guidance, individualized hormone health, and an exceptional patient experience.
Kirsten Allred, PA-C
Timothy C. Petersen, MD
Kristin Baldwin
Stacey Decker
Kirsten Allred, PA-C
Kirsten Allred is a dedicated and deeply compassionate Physician Assistant whose career has been shaped by a commitment to improving the lives, confidence, and long-term wellness of her patients. With more than a decade of clinical experience across neurosurgery, pain management, and urgent care, she brings a broad and informed medical foundation to her work—paired with a genuine passion for helping individuals understand their bodies, navigate complex symptoms, and reclaim their quality of life.
A Virginia Beach native, Kirsten earned her Bachelor of Science in Recreation and Tourism with a focus on Therapeutic Recreation and a minor in Exercise Science from Old Dominion University in 2007. She went on to complete her Master of Physician Assistant at Eastern Virginia Medical School in 2012, where she strengthened her clinical training and developed the patient-centered philosophy that continues to guide her practice today.
Kirsten’s growing focus on hormone health, optimization, and longevity stems from her desire to support both women and men through some of the most disruptive and often misunderstood phases of their lives. She has completed Worldlink Medical’s Mastering the Foundations of BHRT, equipping her with evidence-based training in bioidentical hormone replacement therapy and a deeper understanding of the biochemical, emotional, and lifestyle factors that influence hormonal balance. This new chapter of her career reflects her belief that wellness is not simply the absence of illness—it is the alignment of physical, emotional, and functional health that allows people to thrive.
Her approach to care is rooted in individualization. Kirsten believes that every patient’s story matters, and that effective treatment requires listening closely, understanding personal goals, and building a plan that is both realistic and sustainable. She is known for creating an environment where patients feel heard, respected, and genuinely cared for, and she prioritizes education so individuals feel confident and empowered in their own health decisions. For her, the most meaningful part of medicine is the long-term relationships—walking alongside patients as they grow, heal, and rediscover their vitality.
Outside of her clinical work, Kirsten is deeply connected to her community. Born and raised in Virginia Beach and a graduate of First Colonial High School, she has built her life around family, service, and creativity. She recently celebrated 17 years of marriage to her high-school sweetheart, Ricky, and is the proud mother of their energetic three-year-old daughter, Emilia. She serves as an advisor for the ODU Zeta Tau Alpha sorority, supporting young women in leadership, academic success, and personal development. A lifelong dancer, Kirsten continues to take classes—finding joy, discipline, and expression in movement.
As she steps into her work with hormone therapy and whole-person wellness, Kirsten hopes every patient who meets her feels supported, informed, reassured, and never alone in their health journey. Her mission is simple: to make a meaningful difference, to listen deeply, and to help each individual find the best path toward feeling like themselves again.
Timothy C. Petersen, MD, FACP, FACE, ECNU
Dr. Petersen serves as the medical director at RejuvinAge. As a practicing endocrinologist, he has been specializing in thyroid and hormone care in the Coastal Virginia region for over 10 years. Originally from Virginia Beach, he graduated from Princess Anne High School and matriculated to Virginia Tech as a pre-veterinary student. He would later transition to human medicine and attended Eastern Virginia Medical School (EVMS) for medical school, residency (internal medicine), and fellowship (diabetes, endocrinology, and metabolism).
He has been interested in functional medicine and health optimization since graduating college. His own personal struggles inspired him to learn about natural healing methods, which opened his mind to alternative approaches to wellness. This journey led him to his wife of 21 years, Emily, whose father (a retired compounding pharmacist) supported Dr. Petersen’s academic journey, which included providing access to functional medicine courses that he took while in medical school. Dr. Petersen has practiced with a balanced, patient-centered, individualized approach to medicine ever since.
In addition to his endocrinology practice and medical directorship, Dr. Petersen has given multiple national lectures on thyroid hormone management. He won multiple awards in training and was inducted into the Alpha Omega Alpha honor society. He has been recognized as a Coastal Virginia Top Doc and Top Doc All Star for many years, was voted a Top Doc Rising Star, and received a Virginia Living Magazine Top Doc selection. He has published several peer-reviewed articles and has served as a journal reviewer.
He is highly enthusiastic about joining the team at RejuvinAge, which gives him a unique opportunity to elevate the wellbeing of even more patients in the Coastal Virginia region.
Dr. Petersen is a recovering musician and athlete. He and his incredible wife live in Virginia Beach with their children Miles and Ellia and their dogs Willow and Magnolia. Their oldest son, Sammy, is a financial advisor and soon-to-be husband to his amazing fiancée Christina with residences in Virginia Beach and Lynchburg, VA.
Fun Fact: Dr. Petersen attended a small, private elementary school in Virginia Beach (Baylake Pines) with the daughters of RejuvinAge’s Kyle Riley and Dr. Jennifer Krup. They have known each other since the early 1980s. Dr. Petersen is honored to help continue the legacy that Dr. Krup and Kyle have built over decades of service to their patients.
Kristin Baldwin
As both a co-owner and current patient of RejuvinAge, Kristin Baldwin brings a meaningful personal connection to her role as Patient Coordinator. Having experienced the challenges of perimenopause and the positive impact of personalized bioidentical hormone replacement therapy, she is passionate about helping others feel supported on their path toward better health.
Kristin recently completed specialized professional training in Bioidentical Hormone Replacement Therapy optimization through Worldlink Medical. Before joining RejuvinAge, she spent 10 years as a preschool teacher at Broad Bay Manor School, where her natural ability to care for others and build meaningful relationships was central to her work. A longtime Virginia Beach resident, Kristin is married and the mother of two adult children. She has volunteered with the Mermaid Circle supporting CHKD and local children’s charities for 20 years.
An avid fitness enthusiast, she enjoys group fitness, HIIT and Pilates and has completed five half-marathons and the New York City Marathon. She believes that nutrition, exercise and restorative sleep are important foundations of wellness and that everyone should feel empowered to advocate for their health.
Above all, Kristin wants every RejuvinAge patient to feel welcomed, comfortable, heard and genuinely cared for throughout their journey.
Stacey Decker
A Virginia Beach native and Cox High School graduate, Stacey Decker earned her degree in Information Systems from Radford University. For more than 25 years, she has built and led businesses, developing a passion for strong teams, smart systems, and finding better ways to do things.
Stacey’s path to RejuvinAge is also deeply personal. In her 30s, after the birth of her second daughter, she knew she didn’t feel like herself even when traditional medical evaluations suggested everything was fine. Reading Suzanne Somers’ I’m Too Young for This! became a turning point and opened her eyes to the role hormones and thyroid health can play in how we feel. That curiosity led her to explore functional medicine and a more individualized approach to her health, profoundly improving her energy, vitality, and quality of life.
RejuvinAge was already part of Stacey’s story. Her mother has been a patient for more than 15 years and encouraged Stacey to visit the practice in her early 30s to establish a baseline for her hormone health.
Today, Stacey combines her experience building businesses with a deeply personal passion for health and wellness. As Owner and Practice Director, her vision is to preserve the individualized care that has made RejuvinAge special while creating an experience where people feel heard, informed, and empowered to take an active role in their health.
Stacey has completed Mastering the Foundations of BHRT, an advanced seminar sponsored by Worldlink Medical. She also continues to deepen her knowledge through independent study, including books, podcasts, and educational resources from leading voices in menopause, women’s health, and longevity.
Stacey is deeply rooted in the Virginia Beach community. For more than 24 years, she has been a founding member of the Mermaid Circle of Virginia Beach City Union and has remained involved with numerous charitable organizations including the National Charity League. Giving back is an important part of her life, and she is passionate about raising her daughters with that same commitment to community.
Stacey has been married to her husband for nearly 20 years, and together they are raising their two daughters, ages 11 and 15, in Virginia Beach, along with their much-loved Bernedoodle.
Outside of work, Stacey enjoys walking outdoors, practicing yoga, and listening to podcasts and audiobooks about women’s health, wellness, and longevity. She remains endlessly curious about how we can live better as we age and believes that getting older should never mean giving up on feeling vibrant, strong, and fully ourselves.
Honoring Our Legacy
Recognizing the people whose care, commitment, and relationships built the foundation of RejuvinAge.
Jennifer Krup
Jennifer Krup founded RejuvinAge as a private medical practice centered on highly individualized hormone care. Her patient-first philosophy and commitment to personalized treatment helped establish the standard of care and personal attention that continue to define RejuvinAge.
With decades of experience in family medicine and hormone optimization, Jennifer brought extensive clinical knowledge and an international perspective to the practice, including lecturing throughout the United States and internationally.
Her work, together with Kyle Riley and Sara Wilda, created the foundation upon which the next chapter of RejuvinAge is being built.
Kyle Riley, Clinical Director
At the core of RejuvinAge is Kyle Riley, whose passion for Hormone Replacement has shaped the culture RejuvinAge. Her genuine care for people, paired with deep clinical expertise, shines through in her steadfast commitment to helping others feel their very best.
Kyle has completed Parts I, II, III, and IV of Mastering the Protocols for Optimization of Hormone Replacement Therapy, an advanced seminar series sponsored by Worldlink Medical. Her extensive training in Dr. Neal Rouzier’s hormone optimization protocols reflects her dedication to evidence-based, cutting-edge care. She also served as editor of his book, How to Achieve Healthy Aging.
As Clinical Director, Kyle thoughtfully guides business operations, marketing, patient programs and ordering — always with a focus on creating a supportive, empowering experience for every RejuvinAge Patient.
Sara Wilda, Patient Coordinator
Sara Wilda is the heart and helping hand of RejuvinAge. She is the warm voice you hear on the phone and the friendly face that welcomes you through our doors. Her genuine smile and kind, reassuring nature immediately puts patients at ease, creating a sense of comfort from the very first interaction.
From your initial phone call to your Program Appointment and beyond, Sara works diligently to ensure every detail of your experience is seamless and stress-free. Her knowledge, attentiveness, and heartfelt dedication to our patients help ensure expectations are not only met, but exceeded — always with efficiency, compassion, and care.
As Patient Coordinator, Sara manages scheduling, consultations, lab requisitions, new patient programs, and follow-up care, keeping everything organized so our patients can focus on what matters most — their hormone health and well-being.