Meet Dr. Petro

A Calling, Not Just a Career

I often tell people I have one of the most rewarding occupations in the world. Every day, I get to watch patients transform their health and their lives—to see hope return and vitality restored. Helping someone finally feel like themselves again is deeply fulfilling and keeps me passionate about what I do.

Meet Dr. Gary Petro

I’m Dr. Gary Petro, founder of Good Medicine Functional Health in Whitefish, Montana, and author of Intentional Health: Your Best Chance for Aging Well and Avoiding Chronic Health Conditions.

My book reflects the same philosophy I teach in my practice—lasting wellness begins with understanding the “why” behind your health challenges and taking intentional, science-based steps to restore balance and vitality.

Over 36 Years Helping Patients Rebuild Their Health

For more than 36 years, I’ve helped over 8,000 patients overcome chronic symptoms, restore energy and resilience, and rediscover what it feels like to thrive.

Many of my patients have seen multiple providers and tried countless treatments without lasting relief. My specialty is helping these “tough cases” find clear answers and a practical, sustainable path forward.

The Health Restoration Program

At Good Medicine, my Health Restoration Program begins with a comprehensive consultation and targeted, science-based testing to uncover what’s truly disrupting your body’s optimal function.

From there, we design a personalized blueprint to rebalance key systems—metabolic, hormonal, neurological, and immune—so the body can begin healing naturally and sustainably.

“True healing begins when we understand the why behind our symptoms.”
— Dr. Gary Petro

Training, Expertise & Professional Memberships

Throughout my career, I’ve trained extensively under some of the foremost leaders and innovators in Functional Medicine and Functional Neurology, with additional specialization in Nutrigenomics and Anti-Aging Healthcare.

I am a member of:

• Institute for Functional Medicine (IFM)

• International College of Generative Medicine (ICGM)

Ongoing study of cutting-edge research and advanced testing allows me to continually refine my approach to patient care and stay at the forefront of precision Functional Medicine.

From Ohio to Montana

Before moving to Montana, I directed one of Ohio’s leading Functional Medicine clinics for more than three decades, collaborating with specialists to help patients with complex, chronic conditions.

Today, my wife Mary Claire and I are grateful to call the Flathead Valley home. We feel blessed to live and serve in such a vibrant, health-minded community.