FUNCTIONAL MEDICINE & TESTING + PHARMACEUTICAL GRADE SUPPLEMENTS + TARGETED IV THERAPY
A Personalized Path to Health
Led by Compassion, Grounded in Science
At Wellness & Longevity, your care begins with listening—to your story, your symptoms, and what matters most to you. We believe the path to real healing starts with our clients being fully heard and understood.
Founded in 2007 by Dr. Paul Rothwell, our vision at Wellness & Longevity has always been to offer a new kind of wellness experience—one rooted in compassion and backed by science. You can always trust in our mission of providing the best of traditional medicine with the depth and personalization of functional and holistic care.
We’re here to guide and empower you, not just treat symptoms. That means taking the time to listen to your story, uncover root causes, and walk alongside you as a partner in your wellness journey.
Whether you’re managing a chronic illness, balancing hormones, managing stress, or just wanting to feel better in your
own body, we create personalized care plans that support your needs and lifestyle. True wellness isn’t one-size-fits-all.
Meet Your Care Team
Professional. Personal. Fully Invested in You.
We look at the big picture. Your lifestyle, your habits, your history — all of it matters. That’s why our approach is deeply individualized and education-forward. We’ll help you understand how your body works and what it needs to thrive. From foundational wellness strategies to advanced therapies, everything we do is designed to support sustainable, long-term health.
Dr. Paul D. Rothwell, MD, FMCP-M
Founder | Functional & Family Medicine Specialist | Lifelong Advocate for Personalized Care
With nearly five decades of experience, Dr. Paul Rothwell has been a trusted physician for generations of Oklahoma families—and a trailblazer in the field of integrative and Functional Medicine. As the founder of Wellness & Longevity, Dr. Rothwell set the vision to blend the best of science, experience, and compassion to support long-term health and vitality.
Dr. Rothwell is dual-board certified in Family Medicine and Functional & Regenerative Medicine, and he is a Fellow of both the American Academy of Family Physicians and the American Academy of Anti-Aging and Regenerative Medicine—the world’s leading organization for integrative and anti-aging care. His unique perspective allows him to bridge traditional and modern approaches, always with the patient’s individual needs at the center.
A respected educator and thought leader, Dr. Rothwell serves as an Associate Clinical Professor at the University of Oklahoma College of Medicine, where he mentors future physicians in both clinical care and whole-person health. He’s also a published author and a frequent national lecturer on the evolving science of Functional Medicine.
Dr. Paul Rothwell, his wife Sherri Pat are the epitome of wellness and longevity!
Along with their beloved dog, Thandi, they lead a highly-active life filled with travel and adventure as well as being pillars of support in their community.
Candace L. Sturlin, PA-C
Physician Associate | Functional Medicine Specialist | Advocate for Whole-Person Wellness
Candace Sturlin, PA-C, brings more than 20 years of experience—and a deep passion for personalized care—to her role at Wellness & Longevity. With an extensive background in Family Medicine, Emergency Medicine, Functional Medicine, Urology, and Anti-Aging Care, Candace blends science, compassion, and whole-body wisdom to help her patients feel their best.
After earning her Bachelor of Science in Biology (Magna Cum Laude) from Southern Nazarene University, Candace completed her Master of Science as a Physician Associate with Distinction at the University of Oklahoma Health Sciences Center in 2002. Since joining Wellness & Longevity in 2010, she has worked to bring Dr. Rothwell’s vision to life, offering integrative care with heart.
Candace is currently completing certification through the Institute for Functional Medicine while continuing her education with the American Academy of Anti-Aging Medicine. She is nationally certified by the NCCPA and is an active member of the Oklahoma Academy of Physician Assistants.
Her clinical approach reflects her philosophy: every person is unique, and their care should be too. She’s especially passionate about hormone health, whole foods nutrition, detoxification, and lifestyle-driven healing. You will appreciate her ability to listen deeply, explain clearly, and partner with them on a meaningful path to better health.
Candace is also an advocate for clean living, including non-toxic skincare, household products, and beauty solutions. In 2018, she partnered with Beautycounter, a leader in clean beauty, to further support her mission of educating and empowering families to make safer, healthier choices.
Outside the clinic, you’ll find Candace enjoying life in Oklahoma City with her husband, Malachi, and their two children. She loves gardening, reading, and traveling—especially when it involves sunshine, good food, and fresh air.
Amber Tilford, RN, NTP
Clinic Director | Registered Nurse | Certified Nutritional Therapy Practitioner
Amber Tilford is the kind of nurse who makes you feel right at home. With over 10 years of experience in healthcare—and a heart for helping others—she blends her clinical background with a passion for root-cause healing through Functional Medicine.
After years in emergency care, Amber found her true calling in personalized wellness. Now, as Director of IV Services and Supplements at Wellness & Longevity, she loves connecting with patients, learning their stories, and creating thoughtful care plans that support healing from the inside out.
As both a Registered Nurse and Certified Nutritional Therapy Practitioner, Amber brings a well-rounded, holistic approach to her work—focusing on real food, high-quality supplements, and lifestyle changes that actually make a difference.
When she's not mixing custom IVs or guiding patients through supplement choices, you'll likely find her spending time with her family, digging in her garden, or cooking up something healthy (and delicious!) in the kitchen.
Mary Hartgers, RN, NTP
Assistant Clinic Director | Registered Nurse | Certified Nutritional Therapy Practitioner
Mary Hartgers brings a deep sense of empathy, clinical knowledge, and a passion for healing into every room she enters. As a Registered Nurse and Certified Nutritional Therapy Practitioner (from the Nutritional Therapy Association), Mary blends her background in conventional medicine with a love for transformative, lifestyle-centered care.
Mary’s nursing journey began in 2017, working bedside on an Intermediate Care Floor, where she gained a strong foundation caring for a diverse range of patients. She later served as a Hospice RN Case Manager, supporting individuals and families through some of life’s most meaningful and difficult moments—a role that shaped her kind and compassionate approach to care.
When the opportunity came to join Wellness & Longevity, Mary knew she had found her place. She quickly connected with the mission of helping patients uncover and reverse chronic conditions through a blend of nutritional support, lifestyle changes, and integrative medicine. She firmly believes the body has an amazing ability to heal when we provide it with the right tools—and that nutrients and one’s environment can also be powerful medicine.
Outside the clinic, Mary loves creating new recipes, tending to her garden, staying active with her family, and curling up with a good book whenever she can carve out a quiet moment.
Her warm presence and thoughtful care make her a trusted guide for those ready to take a more empowered approach to their health.
Audrey Luker, RN
Registered Nurse | IV & Supplement Support Specialist
With her kind spirit and steady compassion, Audrey Luker creates a peaceful, supportive experience for every patient she meets. A Registered Nurse since receiving her degree from Southern Nazarene University in 2018, Audrey began her career at Bethany Children’s Hospital, where she developed a deep love for forming lasting connections with families—becoming part of their stories during meaningful seasons of life.
In 2022, Audrey joined the Wellness & Longevity team and found her perfect fit. She’s now an integral part of our IV therapy and supplement support services, helping patients feel relaxed, cared for, and informed throughout their wellness journey. You will love her peaceful, reassuring presence and the intentional way she explains the benefits of key vitamins, supplements, and therapies.
Audrey is especially passionate about education and empowerment, taking time to ensure every patient understands the “why” behind what they’re taking and how it supports their long-term health.
When she’s not in the clinic, Audrey is usually out exploring with her husband and their adventurous 2-year-old daughter. She also enjoys baking, being outdoors, and making sweet memories with friends and family.
Ashley Oyler, NTP
Certified Nutritional Therapy Practitioner & Health Coach | Supplement Store Manager
Ashley Oyler is passionate about helping people feel their best—one real meal, healthy habit, and breakthrough moment at a time. As a Certified Nutritional Therapy Practitioner with a degree in Biology, she combines science with heart to guide clients toward sustainable, whole-body wellness.
Ashley leads our 5-week RESTART® group nutrition program, where she creates a welcoming space for clients to learn, reset, and reconnect with what their bodies truly need. Her gentle, encouraging style helps participants build confidence around food and lifestyle choices—without the overwhelm.
She’s also a certified fasting coach, specializing in using fasting as a tool for both healing and prevention. Whether you're new to nutrition or ready for deeper change, Ashley meets you where you are and walks alongside you in your journey with care.
Outside the clinic, you’ll find her cheering on her kids at ballgames, soaking up sunshine at the lake, or enjoying a good hike. She’s also a big fan of creativity, personal growth, and learning how to keep her garden thriving (with varying success, she’ll say with a smile).
Ashley brings not only knowledge but kindness to everything she does—making her a go-to guide for anyone ready to feel better and live well.
Led by Compassion, Grounded in Science
At Wellness & Longevity, we’ve created a space that feels safe, welcoming, and deeply personal and a culture dedicated to service, expertise and compassion. Whether you’re just beginning your wellness journey or looking to optimize what’s already working, our team is here to support you—every step of the way.
Because you deserve to feel better. You deserve to feel like yourself again.
Let’s rediscover what thriving really feels like.
