You’re Not Crazy. There’s a Reason You Don’t Feel Like Yourself.
FUNCTIONAL MEDICINE | WHITEFISH, MT
Montana's Leading Functional Medicine Provider
If you’re dealing with fatigue, brain fog, weight gain, or ongoing symptoms—and not getting real answers—you’re in the right place. Even worse, many people are told everything looks “normal.” However, normal lab ranges do not always mean optimal health.
Stop chasing systems & start healing the root causes chronic health conditions. Dr. Petro has developed precision testing and evaluation systems designed to uncover the hidden imbalances that drive chronic health problems
.
Rather than simply covering up symptoms, the goal is to identify why your body is struggling in the first place—so you can finally get clear answers, a personalized strategy, and a real path toward lasting health for adults and children.
FUNCTIONAL MEDICINE | WHITEFISH, MT
Montana's Leading Functional Medicine Provider
If you’re dealing with fatigue, brain fog, weight gain, or ongoing symptoms—and not getting real answers—you’re in the right place. Even worse, many people are told everything looks “normal.” However, normal lab ranges do not always mean optimal health.
Stop chasing systems & start healing the root causes chronic health conditions. Dr. Petro has developed precision testing and evaluation systems designed to uncover the hidden imbalances that drive chronic health problems
.
Rather than simply covering up symptoms, the goal is to identify why your body is struggling in the first place—so you can finally get clear answers, a personalized strategy, and a real path toward lasting health for adults and children.
Testimonials
Hear From Our Patients
Real stories. Real results. Real transformations.
WHO WE HELP
Common Health Challenges We Help Patients Overcome
No matter what your health goals are, we'll provide the support and treatment you need to help you thrive.
Chronic inflammation and autoimmune conditions can disrupt your quality of life. We work to identify triggers, restore immune balance, and reduce inflammation naturally, so you can reclaim your health and energy.
From thyroid imbalances to adrenal dysfunction and metabolic issues, hormones play a vital role in overall health. Rebalance hormones naturally to restore energy, mood, and metabolism.
Your gut is the foundation of your health. We help resolve bloating, IBS, food sensitivities, and leaky gut by uncovering imbalances and restoring digestive function with tailored nutrition and lifestyle support.
Memory decline and cognitive changes can be early signs of deeper dysfunction in metabolism, inflammation, or brain chemistry. Our approach focuses on uncovering and correcting these root causes to improve mental clarity and protect long-term cognitive function.
ADHD and learning challenges are often not random. By identifying underlying factors affecting brain function, we help uncover what may be holding your child back and create a more personalized path forward.
Sustainable weight loss isn’t just about dieting—it’s about addressing underlying metabolic, hormonal, and inflammatory factors that impact weight. We craft science-backed plans for long-term success.
THE DATA
Results That Speak for Themselves
We don’t just manage symptoms—we help you achieve real, measurable improvements in your health.
81.9%
Of Patients Experienced Improved Sleep
84.8%
Of Patients Experienced Sustainable Weight Loss
66.6%
Of Patients Experienced Improved Digestion
74.5%
Of Patients Experienced Increased Energy
63.4%
Of Patients With High Blood Sugar Saw Improvement
68.9%
Of Patients With High Blood Pressure Saw Improvement
62.5%
Of Patients With Brain Fog Experienced Improvement
60.8%
Of Patients With Chronic Pain Saw Improvement
About GOOD MEDICINE FUNCTIONAL HEALTH
I'm Dr. Gary Petro. I Believe You Deserve Answers & A Clear Path Forward.
Dr. Gary Petro, DC, founded Good Medicine Functional Health to help you get both.
With over three decades of experience—and having helped more than 8,000 patients—he has dedicated his career to uncovering the underlying causes of complex health challenges. Early in his career, he recognized that simply managing symptoms wasn’t enough. People needed a deeper, more complete approach.
That realization led him to pursue advanced training and study under some of the foremost leaders in functional, integrative, and holistic medicine. He is a member of the Institute for Functional Medicine, has completed certification through the Kalish Institute of Functional Medicine, and is certified in Human Genomics. In addition, he has completed over 500 hours of post-graduate training in functional neurology through the Carrick Institute, with a special emphasis on learning disabilities and cognitive decline.
Today, his focus is simple: help you restore balance, improve how you feel, and take control of your health for the long term.
Your care is built around the systems that drive your health—metabolism, hormones, gut health, brain function, and detoxification. Every plan is personalized to you, your history, and your goals.
Patients value Dr. Petro not just for his expertise, but for how he shows up—clear, committed, and focused on helping you succeed. He is truly passionate about helping you regain you health.
Outside the office, he enjoys time with his wife and family and staying active in beautiful Montana.
Because the truth is—you have more control over your health than you’ve been told. And you can create lasting change.
HOW WE WORK
A Clear Roadmap To True Health
Getting the care you need should be simple. That’s why we take the time to understand your unique needs, goals and guide you through our proven proces.
Step 1:
Book A Free Consultation
Every journey starts with the first step. In your free consultation, our team will get to know your health concerns, goals, and needs—helping you understand how our approach works.
Step 2:
Personal Health Evaluation
Dr. Petro will take a deep dive into your health with a comprehensive intake, lab testing, and assessments to uncover the root causes of your symptoms.
Step 3:
Ongoing Care & Support
With regular provider visits, health coaching, unlimited messaging, and access to exclusive resources, you’ll have the tools and guidance to optimize your health, prevent disease, and create lasting change
Book your free CONSULTATION
Your First Step to Better Health
Life gets busy, but your health shouldn’t wait. We're here to help you prioritize your well-being. Select a time below for your free, 15 minute virtual consultation, or call us at (406) 998-1433:
Discover
What We Treat
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