Balance restored.
Wellness renewed.
Your body is a symphony of connection – biochemical, structural, and emotional – each part designed to move in harmony. When balance falters, vitality fades.
At North Shore Functional Medicine, we restore that harmony by looking beyond the symptom to uncover the patterns beneath and create personalized pathways that empower you to heal deeply, live fully, and thrive naturally.
Discover Your Rebalance
Our structured approach turns the science of healing into the art of restoration.
Discover Your Rebalance
Our structured approach turns the science of healing into the art of restoration.
Hormone Optimization
Restore your energy, mood, and vitality with personalized hormone balance solutions that help you feel like yourself again.
Thyroid
Management
Rebalance your metabolism and reclaim your zest for life with expert thyroid care designed for whole-body wellness.
Learn MoreFunctional
Wellness
Unlock deeper health with a whole-body approach that identifies root causes and empowers lasting wellbeing.
Weight Loss
Solutions
Achieve sustainable weight loss through customized plans that target root causes and support lasting change.
Digestive
Health
Transform your digestive comfort and function with targeted support that restores balance and enhances everyday wellness.
Learn MoreHormone Optimization
Restore your energy, mood, and vitality with personalized hormone balance solutions that help you feel like yourself again.
Thyroid
Management
Rebalance your metabolism and reclaim your zest for life with expert thyroid care designed for whole-body wellness.
Learn MoreFunctional
Wellness
Unlock deeper health with a whole-body approach that identifies root causes and empowers lasting wellbeing.
Weight Loss
Solutions
Achieve sustainable weight loss through customized plans that target root causes and support lasting change.
Digestive
Health
Transform your digestive comfort and function with targeted support that restores balance and enhances everyday wellness.
Learn MoreRooted In Science. Defined By You.
Our structured approach turns the science of healing into the art of restoration.
Identify
Our consultation starts with a detailed assessment of your biomarkers, uncovering root causes, triggers, and patterns for personalized insights.
Reduce
We identify and eliminate stressors that hinder health, fostering healing, balance, and overall wellness.
Optimize
At North Shore Functional Medicine, we restore balance, optimize health, and support your vibrant, resilient life.
Support
At North Shore Functional Medicine, we prioritize partnership, supporting your journey with personalized treatments for lasting health.
Personalize
Your journey is unique; at North Shore Functional Medicine, we craft personalized plans to restore balance, vitality, and purpose.
Rooted In Science. Defined By You.
Our structured approach turns the science of healing into the art of restoration.
Identify
Our consultation starts with a detailed assessment of your biomarkers, uncovering root causes, triggers, and patterns for personalized insights.
Reduce
We identify and eliminate stressors that hinder health, fostering healing, balance, and overall wellness.
Optimize
At North Shore Functional Medicine, we restore balance, optimize health, and support your vibrant, resilient life.
Support
At North Shore Functional Medicine, we prioritize partnership, supporting your journey with personalized treatments for lasting health.
Personalize
Your journey is unique; at North Shore Functional Medicine, we craft personalized plans to restore balance, vitality, and purpose.
Our Mission
At North Shore Functional Medicine, our mission is to restore the body’s natural balance by uncovering root causes and creating personalized pathways to lifelong wellness. Through advanced insight and relationship-centered care, we empower you to understand your physiology, reclaim your vitality, and thrive with clarity, strength, and balance.
Meet the Owner
Amanda Flegner, MSN, FNP-C
I founded North Shore Functional Medicine with a simple belief: patients deserve more than symptom management—they deserve answers. After nearly 20 years as an ICU Nurse and Emergency Surgery Nurse Practitioner at Wisconsin’s largest Level I Trauma Center, I saw firsthand the limitations of traditional care and felt called to a more intentional, root-cause approach to health.
For the past three years, I have devoted my practice exclusively to functional medicine, bringing advanced training through The Institute for Functional Medicine and a concierge-level standard of care to the North Shore community.
Today, I partner with clients who value a deeply personalized, relationship-centered experience. My work focuses on the core pillars of lifelong wellness—nutrition, movement, stress mastery, toxin reduction, hormone balance, and optimized metabolic function. Together, we create tailored paths to health that honor each person’s unique physiology, restoring balance and renewing well-being in a way that feels both transformative and sustainable.
Meet the Owner
Amanda Flegner, MSN, FNP-C
I founded North Shore Functional Medicine with a simple belief: patients deserve more than symptom management—they deserve answers. After nearly 20 years as an ICU Nurse and Emergency Surgery Nurse Practitioner at Wisconsin’s largest Level I Trauma Center, I saw firsthand the limitations of traditional care and felt called to a more intentional, root-cause approach to health.
For the past three years, I have devoted my practice exclusively to functional medicine, bringing advanced training through The Institute for Functional Medicine and a concierge-level standard of care to the North Shore community.
Today, I partner with clients who value a deeply personalized, relationship-centered experience. My work focuses on the core pillars of lifelong wellness—nutrition, movement, stress mastery, toxin reduction, hormone balance, and optimized metabolic function. Together, we create tailored paths to health that honor each person’s unique physiology, restoring balance and renewing well-being in a way that feels both transformative and sustainable.
Transformative Tales
Real Stories From
Our Clients
Three years ago I wasn’t sleeping, felt irritable, and was steadily gaining weight. Amanda helped me balance my hormones, reset my nutrition, and truly feel like myself again. I’ve even shed the extra pounds. Her expertise, kindness, and unwavering commitment to her patients is unlike anything I’ve experienced in any clinic.
“Amanda, you saved my life. Your guidance, empathy, and unwavering support changed everything. Our health, mindset, and habits are stronger than ever—forever grateful.”
“Amanda listened deeply, explained everything clearly, and created a hormone plan that actually worked. My energy, sleep, and mood improved within weeks. I’ve never felt more balanced or supported.”
“My overall wellbeing has improved in every way since working with Amanda. Better energy, calmer mood, clearer mind, and renewed health. Her expertise and genuine care made all the difference.”