meet the team

Chronic Pain Peoria IL Dr. Eliza Pierko, MD Medical Director
Medical Director

Dr. Eliza Pierko, MD

Dr. Eliza J Pierko is an Internal Medicine Specialist in Chicago, Illinois. She graduated with honors in 2006. Having more than 12 years of diverse experiences, especially in SPORTS MEDICINE and INTERNAL MEDICINE, Dr. Eliza J Pierko affiliates with Macneal Hospital, and cooperates with other doctors and specialists in many medical groups including Vhs Of Illinois Inc, Macneal Physicians Group LLC, Realhealth Advanced Care Sc.

Chronic Pain Peoria IL Melissa DeLaTorre APN-C


Melissa obtained her Master’s degree at Maryville University in St. Louis MO in 2017. She truly enjoys educating patients on all the options available for them that will help decrease pain and avoid any unnecessary surgery. She is passionate about her job and enjoys getting to know her patients and all about making their experience here at SuperiorMED Peoria the best part of their day.

Melissa loves seeing and hearing patients finally enjoy their life without limits from their joint/back pain. In her free time, she enjoys spending time with her daughter, family, and working out.

Chronic Pain Peoria IL Sarah Kneip Advanced Practice Nurse
Nurse Practitioner

Sarah Kneip, MSN-FNPC

Sarah obtained her Master’s of Science in Nursing degree from Olivet Nazarene University. She is a certified Advanced Practice Nurse with a focus on family and urgent care medicine. She has experience in emergency, urgent care, and interventional radiology. Sarah also teaches nursing at Illinois Central College. She has a passion for nursing and education, and she enjoys helping both her patients and her students achieve their full potential.

Chronic Pain Peoria IL Andrea Machnacki
Nurse Practitioner


Chronic Pain Peoria IL Lauren Gerdes Operations Manager


Lauren attended McKendree University and graduated with a bachelor’s degree in Athletic Training. Since joining the team in July of 2016, Lauren has completed several continuing education programs including X-ray technician and billing certification. Her favorite part of her job is feeling rewarded seeing patients get well and meet their goals.

Outside of the office, her family is the most important thing to her. In her free time, she enjoys spending time with her husband and daughter.

Chronic Pain Peoria IL Dr Aaron Sparks DC Founder

Dr. Aaron Sparks, DC

Dr. Aaron Sparks is the founder of SuperiorMED Peoria Clinics and the Chief Executive Officer, providing strategic guidance to the operations, marketing, and management of the company. Dr. Sparks serves as a leading educator on the multi-disciplinary practice model to corporate teams, professional athletics, and academic institutions to bridge the gap between medical and holistic practitioners. 

Dr. Sparks has helped grow and develop multiple healthcare practices across the country, while maintaining a focus on team member morale, positive patient outcomes, and evidence-based protocols. Dr. Sparks received his Bachelor of Arts in Pre-Medicine from Augustana College and a Doctor of Chiropractic degree from Palmer College.


8:30am - 6:00pm

8:30am - 6:00pm

8:30am - 6:00pm

8:30am - 6:00pm


Saturday & Sunday

SuperiorMED Peoria

4306 North Sheridan Road
Peoria, IL 61614

(309) 682-9000