Peak Health Institute - Functional Medicine
A self-pay functional and regenerative medicine clinic serving Chicagoland.
Contact Information
About
Care plans are based on health histories, laboratory testing, and assessment of lifestyle, nutrition, environmental factors, and genetics. Appointments address chronic illness, prevention, health performance, and age-related concerns through integrative care.
Services
- Functional medicine
- NAD+ IV therapy
- Peptide therapy
- Vitamin IV therapy
- Hormone replacement therapy
- Microneedling PRP therapy
- Ozone therapy
- Joint injection therapy
- PRP therapy
- Fertility and postpartum support
- Chronic pain management
- Detox programs
Team
Checked Date: Oct 16, 2026Katie McManigal, APN
Founder & Medical Director
Board-certified family nurse practitioner with training in functional medicine, regenerative medicine, Lyme disease, and anti-aging medicine
Jessica Montalvo, MD
Functional Medicine, Medical Doctor
MD with training in internal medicine, palliative medicine, functional medicine, cognitive decline, and tickborne illness.
Dr. Kelsie Lazzell, ND, DC
Naturopathic Doctor
Naturopathic doctor and chiropractor trained in nutrition, acupuncture, IV nutrients, peptides, and functional lab testing.
Jordan Neumann, DNP
Board-Certified Family Nurse Practitioner
Family nurse practitioner with experience in emergency medicine, allergy and immunology, and functional medicine.
Racheal Feliz, MSN, APRN, FNP-BC
Nurse Practitioner | Functional & Regenerative Medicine
Board-certified family nurse practitioner with 19 years in medicine and a focus on regenerative medicine and sexual wellness.