Root cause care. Real results.
Precision Diagnostics
Advanced testing combined with expert-level clinical interpretation and guidance.
Root Cause Solutions
Personalized protocols designed to address why you feel unwell, not just where it hurts.
Long-Term Partnership
An expert medical team in your corner for every step of your health journey.
Meet your care providers
Irina Frenkel, FNP
Irina Frenkel, FNP is a certified family nurse practitioner (NP) who has practiced functional medicine for the majority of her career. She obtained her nursing degree from Loyola University and her Master’s degree from DePaul University in Chicago. While teaching and working on her research in chronic disease reversal, she identified that there are drug-alternative methods to keeping the body balanced and healthy. Through a commitment to healthy lifestyle choices, she was able to improve her own pancreatic function after a diabetes diagnosis. Since then, she has made it her mission to educate her patients on how to achieve the best possible health outcomes.
Sarah Brown, DNP, CNM, WHNP
Sarah Brown, DNP, CNM, WHNP is a certified nurse midwife and women’s health nurse practitioner (NP). She has experience working in pediatrics, labor & delivery, community birth, and gynecology settings. She obtained her doctorate degree from University of Illinois at Chicago. A primary passion of Sarah’s is physiologic birth, which involves moving through labor, birth, and postpartum in a way that prioritizes a woman’s natural body processes and capabilities. Functional medicine is also an interest to Sarah as she recognized a profound intersection with her own specialty. While finishing her program at UIC, Sarah began working at retreat as a nurse and has since joined the team as a provider. She plans to integrate her knowledge in reproductive and intimate health with her functional medicine training to optimize health outcomes from puberty to menopause, and everything in between.