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 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, Olympic and 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.

Chronic Pain Peoria IL Sarah Kneip Meet The Team
Nurse Practitioner


Sarah Kneip is a certified Family Nurse Practitioner with more than 12 years of experience in Acute Care Medicine. Sarah obtained her undergraduate Nursing degree in 2011 from the Methodist College of Nursing in Peoria. She then obtained her Master's degree in Family Nurse Practitioner studies in 2017 from Olivet Nazarene University in Bourbonnais and became licensed as a Certified Family Nurse Practitioner.

In addition to her FNP certification, Sarah holds a Master's degree in Nursing Education from Olivet Nazarene University, and over the past four years has taught Nursing at the Associate Degree level. Sarah is a lifelong learner and is currently pursuing a Ph.D. in Administration and Leadership through Liberty University, with a target graduation date in 2025.

In her spare time, Sarah enjoys spending time with family, as well as cooking delicious food, traveling anywhere warm and sunny, and running half marathons. Sarah also loves to read!

Sarah is known across many medical and higher education communities for delivering high-quality, patient-centered care and solving problems through an innovative and holistic lens. Sarah has a passion for caring for others and helping them to live their lives healthy and well. She is excited to be a part of SuperiorMED and is proud to work alongside a tremendous team of providers.

Chronic Pain Peoria IL Jamie Meet The Team
Nurse Practitioner

Jamie Holocker, MSN, FNP-C

Jamie Holocker is a board-certified Family Nurse Practitioner with over 18 years of experience in nursing. Jamie started her nursing career with an associate's degree in 2005. She then obtained her bachelor's degree in nursing from Chamberlain University in 2011. 

Jamie received her master's degree in nursing in family nurse practitioner studies in 2016 from Saint Francis Medical Center College of Nursing. Jamie has her board certification through the American Association of Nurse Practitioners.

Chronic Pain Peoria IL Stephanie Meet The Team
Office Manager


Stefanie is our Office Manager here at SuperiorMED. Stefanie earned her Bachelor's degree in Business Management and Finance at Augustana College in Rock Island, IL.

Stefanie brings her expertise in customer service, finance coordination, and office management to our team with over a decade of healthcare industry experience.

Stefanie is a former college softball athlete and has experienced the benefits of regenerative medicine delivered by a team of providers in her quest to heal her own sports injuries.

Outside of SuperiorMED, Stefanie enjoys a good cup of coffee and taking care of her chickens.

Chronic Pain Peoria IL Sherri Meet The Team
Clinic Coordinator


Sherri is our Clinic Coordinator here at SuperiorMED. Sherri has over eight years of experience managing a chiropractic office. She supports our entire team ensuring a positive provider/patient relationship throughout their care plan with SuperiorMED.

Chronic Pain Peoria IL Giorgio Grivetti Meet The Team
Rehab Coordinator


Giorgio Grivetti is our Rehab Coordinator here at SuperiorMED. Giorgio is Dual Enrolled at both the University of Illinois Springfield for a bachelor's in Public and Nonprofit Administration and Illinois Central College PTA (Physical Therapist Assistant) program. Giorgio has over four years of experience as a personal trainer, strength coach, and fitness consultant as well as over 2,000 patient care hours in healthcare settings.

Outside of SuperiorMED, Ivy is a full-time boy mom and loves spending time with her family.

Chronic Pain Peoria IL Ivy Meet The Team
Rehab Technician


Ivy is our Rehab Technician here at SuperiorMED. While living in Texas, she obtained her associate's degree in Kinesiology. In school, she was a student athletic trainer helping those with sports-related injuries. She also brings experience as a Medical Assistant and Nutrition Counselor to SuperiorMED.

Giorgio brings expertise in exercise progression, a deep understanding of anatomy and physiology, and the ability to effectively communicate with patients.

Giorgio is on track to graduate from both programs at the end of the Spring Semester. In Giorgio's spare time, he enjoys working on old truck and car restorations, trying new forms of exercise and movement, and getting involved in the community.

Chronic Pain Peoria IL Nakela Cobbs Meet The Team
Operations Assistant


Nakela is our Operations Assistant here at SuperiorMED. With many years of experience working in a Dental medical practice, she uses her knowledge & skills to work with our team of Doctors and Nurses. Nakela ensures the administrative tasks are completed, while also helping the business function efficiently. 

She is continuing her education at Illinois Central College, majoring in Social Science. Nakela never hesitates to try to put a smile on your face. She also enjoys listening to podcasts, watching shows, movies, & traveling. Nakela is passionate & dedicated to expanding her knowledge, skill, and self motives.

"I strive to deliver the best patient care to improve our patient's goals and outcomes."


8:30am - 5:30pm

8:30am - 5:30pm

8:30am - 5:30pm

8:30am - 5:30pm


Saturday & Sunday

SuperiorMED Peoria

4306 North Sheridan Road
Peoria, IL 61614

(309) 682-9000