
Dr. Mark Holthouse, MD, IFMCP
Medical Director

Dr. Mario Brus, MD
Functional Pediatrician

Dr. David Musnick, MD, IFMCP
Functional Medicine Internal Medicine Doctor, Functional Sports Medicine Physician

Amber Warren, PA-C, IFMCP
Adult Functional Practitioner

Jennifer Paulson, DNP, FNP-BC, APHN-BC, IFMCP
Adult Functional Practitioner

Karen Callagy, PA-C, IFMCP
Adult Functional Practitioner

Amy Ray, FNP, IFMCP
Adult Functional Practitioner

Jessica Bennett, CNM, APRN
Functional Women’s Health & Midwifery

Michael Sermon, PA-C
Adult Functional Practitioner

Jessica Santos, FNP-C, IFMCP
Adult Functional Practitioner

Gavin Guard, PA-C, CISSN
Adult Functional Practitioner

Kristin Gomes, APRN-CNM
Women’s Health Functional Practitioner

Olivia Mangeac, PA-C
Pediatric Functional Practitioner

Tamra Geryk, FNP-C, IFMCP
Women’s Health Functional Practitioner

Christa Inzer Castillo MSPAS, PA-C, MPH
Adult Functional Practitioner

Janessa Tenney, PA-C, IFMCP
Adult Functional Practitioner

Nadia Kravchuk, DNP, FNP-C
Pediatric Functional Practitioner

Aaron Dykstra, DNP, FNP-C
Pediatric Functional Practitioner

Elizabeth Hingley, NP-C, IFMCP, CDCES
Family Nurse Practitioner
Registered Nurses

Lauren Numedahl, RN
Clinical Educator

Annie Sparks, RN
Registered Nurse
Nutritionists & Health Coaches

Alexis Villaret, MS
Functional Nutritionist

Marianne Green, IFNCP, RD
Functional Nutritionist

Lexi Moore, RD
Functional Nutritionist

Lois Payne, FMCHC, NBC-HWC
Health Coach