Meet Our Team

Stephen Nitz
Dr. Stephen Nitz, MD

President and Founder

Dr. Nitz spent over a decade in the traditional medical field including Primary Care, Family Medicine and Emergency Room experience. Feeling frustrated with the inability to truly help his patients heal through the traditional approach he learned in medical school, he searched for a better way do healthcare. He wanted to spend more time with his patients to understand their entire story to find out the true cause of their health challenges, rather than just treating the symptoms. That’s when he found a forward-thinking approach called Functional Medicine. By shifting from the traditional disease-centered focus to a more patient-centered approach, functional medicine focuses on the body as an integrated system of physical and mental health, not just treating symptoms with medication. In 2014, he founded Integrative Medical Associates and the practice has exploded with patients looking for a practitioner who takes time to listen and provide a comprehensive analysis and personalized care plan to help them feel better than they ever knew they could feel!

Dr. Nitz graduated from University of Illinois-Rockford College of Medicine and is board certified in Family Medicine by the American Medical Association, certified by the Institute for Functional Medicine, and certified in Holistic Medicine. Dr. Nitz has been the recipient of numerous awards and honors including the Association of American Colleges Humanism in Medicine Award, Leonard Tow Humanism in Medicine Award for a Faculty Member, and UI-R Golden Apple Teaching Award. He is married with 5 children and enjoys spending time with his family, running, listening to classical music and learning about the best clinical resources for our patients.

Lorie Wendt
Lorie R. Wendt, MSN, APN, ANP-C, FNP-C

Nurse Practitioner

Lorie has a passion for working with patients to find underlying causes for chronic diseases. After earning her Nursing Degree from Columbia University, she worked in critical care, quality improvement, hospital management, and nursing education in New York, New Jersey, and Illinois for over 25 years. She then obtained her masters degree for adult and family nurse practitioner from Lewis University in Illinois. In school, she pursued her interest in integrative medicine and had her clinical rotations with several integrative and functional medicine doctors. Since then, she has attended many conferences for functional medicine, Alzheimer’s Disease, Lyme Disease and other tick-borne infections, gastrointestinal problems including IBS and SIBO, and others. She has a special interest in thyroid, bio-identical hormone replacement for men and women, chronic fatigue, fibromyalgia, lifestyle medicine, osteoporosis, cognitive decline, Alzheimer’s Disease, tick-borne infections, IBS, SIBO, and more.

Lorie has adult children and lives with her husband and 2 cats. She enjoys reading, walking, scrapbooking about family life, and learning new information about how to better care for patients.

Jenny Smith
Jenny Smith, RN

Clinical Lead Nurse

Jenny has a passion for educating and empowering patients to help them create a lifestyle that supports long-lasting health. She has been a Registered Nurse for 35 years earning her degree from Heinz Junior College, Missouri. She spent the majority of her career in pediatrics and obstetrics before falling in love with the Functional Medicine. Jenny leads our clinical staff and provides Bio-identical Hormone Replacement and IV/Infusion Services for our patients.

Jenny is married with 8 adult children. She enjoys doing anything with physical activity - biking, working out, walking, yard work, spending time with friends, and reading books on health and wellness to better serve our patients.

Angi Kolthoff
Angi Kolthoff
Practice Manager
Amy Underhill
Amy Underhill
Medical Admin Assistant
Dana Seiter
Dana Seiter
Medical Admin Assistant
Jeannie Long
Jeannie Long
Medical Admin Assistant
Sabrina Porter
Sabrina Porter
Medical Assistant
Tami Torossian
Tami Torossian
Functional Medicine Scribe