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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.

Take Control Your Health Today
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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 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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  • Exponential Signature Physicals

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

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  • Center for Brain and Body Wellness

    Revolutionary treatments using ketamine infusion and advanced pain therapies that target the root causes of anxiety, depression, PTSD, and chronic pain.

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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, our Grand Rapids – East Paris location can help you feel better 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.

Bill Baer, MD, Pharm D, ASH-C

President & Chief Medical Officer

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Ken Johnson, MD, FACEP

Physician

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Steve Triesenberg, MD

Physician

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Gerry Witherell, MD

Physician

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Todd Shomin, MD

Physician

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Ruth Brandt, MD

OB/GYN

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Eric Kozfkay, DO

Physician

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Jordan Cantor, DO, DipABLM

Physician

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Roger Jansen, PhD

Neuropsychologist

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Jonathan Alvaro, PA-C, MPAS

Physician Assistant

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Leidy L. Fournier, PA-C

Physician Assistant

Leidy Fourner
Joshua M. Fournier, PA-C, MPAS

Physician Assistant

Joshua Fournier
Erica Nyman, PA-C, MPAS

Physician Assistant

Erica Nyman
Brittany Palazzolo, MSN, FNP-BC

Nurse Practitioner

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Jody Koutz, MS RDN

Care Manager

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LaDon Chantrenne-Hoezee

Registered Nurse

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Leigh Nelson, RN

Registered Nurse

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Mirta Stearns, LPN

Licensed Practical Nurse

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Alison Rietman, LPN

Licensed Practical Nurse

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Jason Myers, LPN

Licensed Practical Nurse

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Amber Sumrell

Phlebotomist

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Kandance Johnson

Medical Assistant

Kandance Johnson
Amanda Weighmink

Medical Assistant

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Adam Aqel, PharmD

Director, Pharmacy

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Breanna Garvin

Member Relations Specialist

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April Landis

Regional Office Manager

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Mandy Reed

Chief Operating Officer

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Mike Baer

VP, Corporate and Client Partnerships

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Becky Musgraves

VP, Provider Relations

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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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