top of page

Functional First

Remote consultations by video conference on our secure telemedicine platform are available as well as in-person visits as needed. We are taking every precaution to keep all patients and staff safe during the COVID-19 pandemic.

Our Functional Medicine Approach

We take a functional approach to your healthcare. This means we focus on identifying the root causes of your health issues and develop personalized treatment plans that correct these imbalances to improve overall health long-term. 

We use proven techniques including a thorough analysis of a patients's history, laboratory testing and nutritional interventions. We find ways to improve our patient’s health without always relying on expensive and unnecessary medications that may alleviate the symptoms but do not cure the underlying cause. 

Our Team

Functional First was founded by Debra Brunk, FNP-BC as a healthcare clinic that takes a Functional Medicine approach and provides individualized patient-oriented care.


Debra achieved certification from The Institute for Functional Medicine and is a board certified Family Nurse Practitioner with over 30 years of experience. She earned a Doctorate of Nursing Practice from the University of Virginia and a Master's Degree in Nursing from the University of Illinois Chicago.

Patient Reviews

"I had a rash that kept getting worse. The dermatologist prescribed a series of powerful drugs, none of which improved the situation.


Desperate, I went to Dr. Brunk who suggested an elimination diet. In 3 weeks the rash had significantly mellowed and in 4 weeks it was gone!


My problem had been food sensitivities. Easily fixed without dangerous drugs. Thanks!"

Conditions We Treat

As a Functional Medicine provider, we treat a wide range of chronic health issues. Some of the conditions we specialize in treating are below. 

  • Autoimmune conditions

  • Thyroid disorders

  • Skin problems (eczema, psoriasis)

  • Digestive problems

  • Irritable bowel syndrome

  • Chronic constipation

  • Chronic fatigue

  • Joint and muscle pain

  • Sleep problems

  • Chronic sinusitis

  • And More

Our Location


Phone: (847) 868-0397


1818 Dempster St.

Evanston, IL


Our Functional Medicine Approach 

bottom of page