Dr. Benjamin Fergus, DC, DNS - Graduate of National University of Health Sciences - Founder and Clinic Director of Cornerstone Health - Specializes in evaluation and treatment of chronic and complex presentations, biomechanics, and sports medicine. - Founder and Head Instructor of GRIP Approach (Global Rehabilitation & Injury Prevention) International medical educator on examination, rehabilitation, manual therapy and sports performance. - First Illinois physician to be named a Certified Dynamic Neuromuscular Stabilization (DNS) Practitioner after completion of an intensive rotation at Motol Hospital in Prague, Czech Republic. - Sports medicine consultant to collegiate, professional, and Olympic teams

> “I founded Cornerstone Health to offer the highest quality healthcare to patients who have struggled with other options. I am dedicated to helping you achieve your health goals.”

– Dr. Benjamin Fergus

Dr. Benjamin Fergus, DC, DNS - Graduate of National University of Health Sciences - Founder and C... Read More

Dr. Jacob Przydzial, DC is a licensed chiropractor in Evanston, IL, specializing in sports chiropractic, non-surgical joint care, and evidence-based rehabilitation techniques. He treats a wide range of patients—from athletes to active adults and chronic pain sufferers—by combining hands-on care with modern non-invasive therapies.

Dr. Przydzial is one of the few local providers trained in the Non-Surgical Joint Replacement (NSJR) method and the GRIP Approach to neuromechanical rehabilitation. He is also certified in Acupuncture, Dry Needling, and the McKenzie Method (MDT), allowing him to deliver targeted solutions for both acute and chronic conditions.

Dr. Jacob Przydzial, DC is a licensed chiropractor in Evanston, IL, specializing in sports chirop... Read More

Will Seifert, MAT, ATC is a certified Athletic Trainer at Cornerstone Clinics with experience in collegiate and professional soccer.

He previously served as the Athletic Trainer for Loyola University Chicago Men’s Soccer and has worked with Real Salt Lake, North Carolina FC, and Coastal Carolina University.

Will specializes in injury prevention, rehabilitation, and return-to-activity programming, with a strong emphasis on movement quality, strength, and active recovery. He is passionate about building relationships and helping patients return to the activities they love with confidence and resilience.

At Cornerstone, Will works closely with patients using therapeutic exercise, shockwave therapy, and individualized rehabilitation programs.

“I want to see people moving as quickly as possible—and smiling as quickly as possible.”

Will Seifert, MAT, ATC is a certified Athletic Trainer at Cornerstone Clinics with experience in... Read More

Liz Durham Head Coach, Rehabilitation Specialist.

Liz writes programs and coaches functional training for our unique doctor-designed Foundational Fitness gym. You’ll also work with Liz on at Cornerstone as a rehabilitation specialist and shockwave therapy technician. Liz is certified by GRIP Approach as a Physical Therapy Rehabilitation Specialist and in Functional Kettlebell Training (FKT), blending corrective movement with performance-based fitness.

Liz Durham Head Coach, Rehabilitation Specialist. Liz writes programs and coaches functional tr... Read More