Healthcare wasn’t working. So we built something better.

About Exponential Health

Too many people were stuck in a system that felt rushed, reactive, and impersonal. Appointments were hard to get. Doctors didn’t have time. And care often stopped at prescriptions.

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At Exponential Health, we knew there had to be a better way.

We built a new kind of health system—one that puts you first. We take time to understand your full picture: how you live, what you eat, how you sleep, what you’re feeling, and what risks might be hiding under the surface. Then we create a plan that’s built around you—not the system.

At Exponential Health, care is proactive. Doctors are accessible. And your health is the priority.

It’s how healthcare should be. And it’s what we deliver every day.

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What We Offer

We offer four core services designed to support your health from every angle:

  • Concierge Medicine

    Annual membership that establishes your primary care relationship with personalized, white-glove healthcare, prioritized access, and proactive wellness.

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  • Exponential Signature Physicals

    Advanced screenings, diagnostic testing, and personalized recommendations—all in one transformative experience.

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  • Brain and Body Wellness

    Revolutionary treatments targeting the root causes of anxiety, depression, PTSD, and chronic pain.

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  • Exponential Health DPC+

    One membership that delivers it all: primary care, labs, imaging, navigation, pharmacy, genetic testing, and trusted specialists, transparent, coordinated, and complete.

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Where You'll Find Us

Exponential Health proudly serves the West Michigan community with four convenient locations:

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Grand Rapids, MI – East Paris

From concierge medicine to advanced physicals and mental wellness therapies, our Grand Rapids – East Paris location can help you feel better, think clearer, and live fully.

Holland, MI

Whether you’re seeking proactive medicine, in-depth physicals, or mental wellness support, our Holland location delivers compassionate, cutting-edge care tailored to you.

Grand Rapids, MI – Cascade Rd

Home to the Center for Brain & Body Wellness where we offer personalized treatments for anxiety, depression, PTSD, chronic stress, and cognitive challenges.

Meet the team behind the care

We’re on a mission to change the way healthcare works — and that starts with our people. Here’s who makes it possible.

Dr. Steve Triesenberg

MD

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Dr. Ken Johnson

MD

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Dr. William Baer

MD

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Dr. Gerry Witherell

MD

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Dr. Eric Kozfkay

DO

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Dr. Roger Jansen

PhD

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Mandy Reed

Chief Operating Officer

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Breanna Garvin

Member Relations Specialist

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April Landis

Office Manager

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Leigh Nelson

RN

Victoria Swank

LPN

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Brittany Palazzolo

MSN, FNP-BC

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Jody Koutz

Dietician

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Kelly Shomin

BSN, RN

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Mirta Stearns

LPN

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Alison Rietman

LPN

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LaDon Chantrenne-Hoezee

RN

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What Better Healthcare Looks Like

You deserve more than the status quo. At Exponential Health, patients get real relationships with doctors, unrushed visits, and innovative care that puts them first.

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