Meet Jen Willems
MSN, APRN, AGACNP-BC • Sole Provider & Owner
Raising the standard of care to help you achieve lasting wellness
Jen Willems is a board-certified nurse practitioner with more than 20 years of experience across emergency, critical care and integrative medicine. She founded JW Precision Health to offer care that is both scientifically rigorous and deeply personal.
Jen looks beyond symptoms and standard protocols to uncover and treat the real cause of your health concerns. Her approach blends the precision of conventional medicine with the insight of functional and integrative practices – because you shouldn’t have to choose between evidence-based care and whole-person healing.
Professional Journey
Education & Credentials
• Board-Certified Adult-Gerontology Acute Care Nurse Practitioner (AGACNP-BC) • MSN, Marquette University • BSN, Alverno College • Certified in Peptide Therapy, Hormone Replacement Therapy and Medical Weight Loss • Extensive clinical experience in high-acuity settings including ER, cardiac, neuro, surgical and medical ICUs
Expertise & Core Practice Areas
• Weight and metabolic disorders • Thyroid conditions • Gut and digestive health
• Hormonal dysfunction • Chronic illness and fatigue • Personalized protocols with preventative health care in mind
Clinical Philosophy
Root-Cause Care • We move beyond symptom management to identify and address the underlying drivers of imbalance and chronic illness Evidence-Based Personalization • We combine rigorous research and evidence-based medicine with personalized protocols, ensuring treatments are both scientifically sound individually tailored Whole-Person Approach • Understanding that true health encompasses physical, emotional, and lifestyle factors, we treat the whole person and consider all aspects of the person’s life Human Compassion • Jen brings presence, empathy, and clinical clarity to every encounter, shaped by years on the front lines of critical care
Our Approach & Values
Compassionate Care
Drawing from years of experience in critical care, we understand the importance of being present during vulnerable moments and providing care with genuine compassion.
Evidence-Based Practice
We combine rigorous research and evidence-based medicine with personalized approaches, ensuring treatments are both scientifically sound and individually tailored.
Root Cause Medicine
Moving beyond symptom management, we focus on identifying and addressing the underlying causes of chronic illness through functional and integrative approaches.
Whole-Person Approach
Understanding that health encompasses physical, emotional, and lifestyle factors, we treat the whole person, not just isolated symptoms or conditions.
Beyond the Clinic
A Note from Jen
Thank you for being curious about your health. I’m honored to meet you wherever you are in your current season of life. I believe everyone deserves to be listened to and understood, clarity, vitality and lasting wellness. I built this practice to offer the kind of care I believe in – rooted in science, guided by compassion, and tailored by practitioner/patient collaboration.
In my personal life...
I find grounding in early morning walks with the sunrise and my dogs, quality time with my husband and four small children, and meaningful connection with family and friends. These rhythms are a practice in gratitude and allow me to show up in the best way for the people I take care of.
Our Mission
At JW Precision Health, we bridge the gap between conventional and functional medicine, combining the rigor of evidence-based practice with the wisdom of treating the whole person. Our goal is to help you not just manage symptoms, but to uncover and address the root causes of your health concerns, empowering you to achieve lasting wellness and vitality.