Meet the Team at Main Health Collective
Our Team
Dr. Zach Main
Chiropractic Physician
Dr. Marissa Campos
Naturopathic Doctor, Wellness Consultant
Meet Dr. Zach
Dr. Zach Main is a chiropractic physician originally from Canada. He earned his Bachelor of Science in Medical Sciences from Brock University before completing his Doctor of Chiropractic Medicine at National University of Health Sciences.
His background in high-level hockey and lacrosse at Culver Academies developed an early interest in movement, performance, and recovery, shaping a clinical approach centered on helping patients move better, recover faster, and build long-term resilience.
During his clinical training at Cornerstone Health in Evanston, Illinois, Dr. Zach trained under GRIP Approach founder Dr. Benjamin Fergus and is certified in GRIP and Non-Surgical Joint Replacement techniques for hip, knee, and shoulder conditions. His clinical training also includes Dynamic Neuromuscular Stabilization (DNS), McKenzie Method of Mechanical Diagnosis & Therapy (MDT), among others, including a range of soft tissue and manual therapy techniques. While at National University of Health Sciences, he helped revitalize the Rehab Club (Rehab2Performance), serving as the president for three trimesters. This experience played a foundational role in shaping his identity as a clinician.
Dr. Zach is an avid learner who stays current with emerging research and evidence-informed practice. He follows an N=1 model of care, integrating hands-on treatment, movement-based rehabilitation, and patient education tailored to the individual.
Outside the clinic, he enjoys spending his free time with Dr. Marissa, exploring coffee shops, reading, spending time in nature, and staying active through his own fitness and training.
His mission is simple: help people feel better, move better, and stay that way long-term.
Education:
B.S in Medical Sciences, Brock University
Doctor of Chiropractic Medicine, National University of Health Sciences
Training & Certifications:
Board Certified Doctor of Chiropractic
GRIP Approach- Clinical Lower Extremity, Clinical Upper Extremity, Teams Rehab
GRIP Non Surgical Joint Replacement- Hip, Knee & Shoulder
Myopain Seminars- Dry Needling 1 & 2
Dynamic Neuromuscular Stabilization- Strength Training 1
Meet Dr. Marissa
Hi, I’m Dr. Marissa! From a young age, I knew I wanted to pursue medicine. I vividly remember telling anyone who would listen that I wanted to deliver babies one day. Science, the human body, and caring for others has always deeply inspired me.
For many years, traditional medicine was my clear path. That direction shifted during a medical internship in Vietnam, when my roommate introduced me to the book Brain Maker by David Perlmutter. I had no idea that a single book could completely change the trajectory of my career. It opened my eyes to a new way of thinking about health that centered on the connection between the gut and the brain, and the role of diet and lifestyle in preventing chronic and neurodegenerative conditions. These were concepts I had never been exposed to before, and they resonated deeply.
After reading that book, I realized I could never practice medicine in the way I had originally planned. I began searching for an approach to health that aligned with my values. I wanted a model that prioritized prevention, that sought to understand the why behind symptoms and conditions, and that trusted the body’s innate ability to heal when given the right support. That search led me to Naturopathic Medicine, a field I had never encountered before but one that immediately felt aligned with everything I believed in.
I graduated from naturopathic medical school with a deep passion for wellness and a strong desire to support others in feeling informed, empowered, and cared for. I believe every person deserves to feel supported in their wellness journey. While traditional healthcare plays an important role, it often leaves gaps, particularly when it comes to understanding habits, lifestyle patterns, and early risk factors. My work exists in that space.
As a wellness consultant, my goal is to be your advocate and partner. I strive to educate, support, and walk alongside you through every stage of your wellness journey. I am here to help you feel confident, informed, and empowered to take an active role in your health, no matter where you are starting from.
Education:
B.S. in Neuroscience, University of Illinois at Chicago
Doctor of Naturopathic Medicine, National University of Health Sciences
Salutatorian- Doctor of Naturopathic Medicine Class
Completed Coursework in Clinical Nutrition, Homeopathy, Botanical Medicine, and Clinical Laboratory Diagnosis
