MEET SUSANNAH
SUSANNAH KERWIN, HNP/ANP-BC, FMCP-M
Functional Medicine Clinician
Susannah Kerwin, HNP/ANP-BC, FMCP-M is a board-certified nurse practitioner and functional medicine clinician with over two decades of experience helping patients reconnect with their health through a personalized, root-cause approach to care. Her work is grounded in the belief that complex, chronic conditions require time, nuance, and a level of attention that extends far beyond conventional, one-size-fits-all medicine.
Emergence Health is honored to welcome Susannah to the practice in support of maternity leave coverage for Leah in 2026. Leah and Susannah have been colleagues for over a decade, as well as trusted peers and friends. Having also experienced care as a patient of Emergence Health, Susannah brings a rare, firsthand understanding of our practice and philosophy.
Susannah specializes in perimenopause and menopausal hormone health (including HRT), weight loss resistance, thyroid health, gut health, and mold detox. She is the founder of Tendwell: a Colorado-based, functional medicine and primary care practice. Her work focuses not only on resolving symptoms, but on restoring clarity, resilience, and long-term balance in health.
Susannah takes the time to understand each patient’s full picture - medical history, environment, lifestyle, and lived experience - before shaping a clear and structured plan forward. She creates a process in which patients are consistently engaged, informed, and supported, allowing for meaningful progress that is both sustainable and aligned with their lives.
Earlier in her career, Susannah lived and practiced in San Francisco and New York City, and spent time abroad in Beijing, where she explored traditional Chinese medicine. These experiences broadened her perspective on healing and reinforced her understanding of the limitations of conventional, fast-paced healthcare models - particularly for those navigating more complex or persistent health concerns.
Susannah earned her Bachelor of Science in Nursing from the University of San Francisco, where she developed a strong clinical foundation in patient-centered care. She went on to complete her Master of Science in Nursing at New York University, specializing in adult health, further advancing her ability to care for patients with complex medical needs. She is also a functional medicine certified practitioner (FMCP-M) through the Institute for Functional Medicine, where her training emphasizes systems-based, root-cause methodologies that integrate conventional and integrative approaches to care.
Outside of her work with patients, she enjoys spending time in Colorado nature with her children and husband, reading, traveling, exploring new places, playing soccer and practicing hot yoga.
EDUCATION & AFFILIATIONS
WHAT PATIENTS ARE SAYING:
“5 Stars is not adequate for Susannah - she's exceptional. I've been seeing Susannah for well over a decade when she was working in SOHO Manhattan. She was the talk of my office. A practitioner who actually listens to you and spends time with you. I had to experience this myself. Everyone was right. Susannah REALLY listens and considers what your unique needs are and always comes up with a great plan to follow. I have followed her from that first office I saw her to her private practice in NYC and continue to see her virtually since she moved to Colorado. Over the years, I've had a number of health issues that seem unusual and not connected. I can always rely on Susannah for great advice, support and recommendations on how to move forward. I feel so lucky that I found her. Susannah is simply the best. Thank you so much Susannah for the amazing care you have provided me over these years. I cannot thank you enough.” - Jennifer V.
“I cannot recommend Susannah highly enough. It is rare to find a practitioner who seamlessly bridges the gap between traditional medicine and integrative, holistic care. Her approach isn’t just about fixing what’s broken; it’s about optimizing health. Plus, she's empathetic and is great listener.” - Beth S.
“Susannah has been my main medical and wellness provider for 20+ years. Her approach to functional medicine is one filled with curiosity, kindness, patience, thoroughness, knowledge and fun! She's always up for listening to my many questions without judgement!! She makes me feel supported, comfortable and safe which has not always been my experience within the medical industry. We'ved shared laughs and cries and I feel truly blessed to have her on my side through this journey 🙏🏽” - Kat
“Susannah's approach to functional medicine is remarkable. She's curious and thorough, while also being kind and non-judgmental. She's currently guiding me through a detox from mold while having Hashimotos, and I have a whole host of symptoms that I'm anxious about. She's helping me navigate all of this with flexible treatment options and so much knowledge & understanding — hugely recommend her.” - Mel K.
“I'm so glad to have Susannah as my primary care practitioner. I have now been seeing her for a number of years. Having the experience of seeing medical professionals and feeling like cattle, being squeezed into a little time slot and also not feeling heard, finding Susannah was a breath of fresh air. Each time I came to her with a health issue, large or small, she would always address them from different angles, giving practical and effective advice. I am consistently impressed when we meet how she remembers my whole health story. Her kindness always shines through!” - Gary L.
