“It takes a team.”

Our providers care deeply about their patients. They take the time to listen to and validate their patients' health concerns which allows them to ultimately get to the root cause of their symptoms. Rather than rush through patients, they spend quality time with each patient, listen to their health concerns, and work diligently to truly optimize their health.

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Providers

Mark Holthouse

MD, IFMCP
Medical Director

Mario Brus

DO
Functional Pediatrician

Jennifer Hudson

DO, FACOG
Functional Women’s Health & OB/GYN

Amber Warren

PA-C, IFMCP
Adult Functional Practitioner

Karen Callagy

PA-C
Adult Functional Practitioner

Amy Ray

FNP
Adult Functional Practitioner

Teresa Gabiola Shelton

PA-C
Adult Functional Practitioner

Mikayla Todd

FNP
Adult Functional Practitioner

Jessica Bennett

CNM, APRN
Functional Women’s Health & Midwifery

Michael Sermon

PA-C
Adult Functional Practitioner

Jessica Santos

FNP
Adult Functional Practitioner

Heidi Arens

FNP
Adult Functional Practitioner

Nutritionists & Health Coaches

Alexis Villaret

MS
Functional Nutritionist

Marianne Green

RD
Functional Nutritionist

Jenni Terry

IFMCHC
Health Coach

Lois Payne

ACC, FMCHC
Health Coach

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Heidi Arens, FNP

Heidi received a Bachelor of Science in Nursing from Point Loma Nazarene University in 2008. For 11 years, she worked at Scripps Health in San Diego, California caring for patients with a myriad of cardiovascular and metabolic diseases. She has also worked extensively as a float nurse for 9 hospitals in a wide variety of specialties, both in San Diego and Denver.

Throughout her career, she has embraced numerous leadership roles working with interdisciplinary teams to improve clinical outcomes, care delivery, and patient satisfaction. Although caring for people during an acute health crisis is incredibly rewarding, Heidi saw a need for a different approach that could help people address the root cause of illness and empower them to take an active role in transforming their own health. This inspired Heidi to become a Family Nurse Practitioner and specialize in functional/integrative medicine. Heidi received a Master of Science in Nursing from Azusa Pacific University in 2017 and is a board certified Family Nurse Practitioner. She has done further training with the Institute for Functional Medicine, as well as specialty training in IV therapy, ozone therapy, and prolozone therapy. This training has equipped her with an entirely new set of tools to help identify the underlying causes of disease or dysfunction and partner with patients to restore and maintain health.

For the past several years, she has been working in the field of integrative and functional medicine helping patients with cardiometabolic dysfunction, gastrointestinal disorders, SIBO, food intolerances, acute and chronic infections, various environmental exposures, thyroid dysfunction, autoimmune diseases, and hormonal imbalances. She has a strong clinical interest in helping patients with mold related illness, chronic fatigue, and mitochondrial dysfunction. Heidi believes that achieving optimal health takes a village and she is honored to be part of a dynamic interdisciplinary team at Functional Medicine of Idaho. She looks forward to partnering with you and helping you on the journey towards vibrant health.

Outside the office, you can find Heidi traveling the world, trekking up mountains, at the yoga studio, attending a conference, listening to podcasts, or cooking something delicious.

“It takes a team.”

Providers

Mark Holthouse

Mario Brus

Jennifer Hudson

Amber Warren

Karen Callagy

Amy Ray

Teresa Gabiola Shelton

Mikayla Todd

Jessica Bennett

Michael Sermon

Jessica Santos

Heidi Arens

Nutritionists & Health Coaches

Alexis Villaret

Marianne Green

Jenni Terry

Lois Payne

Jessica Bennett, Certified Nurse Midwife/APRN

Heidi Arens, FNP

Lois Payne, ACC, FMCHC

Marianne Green, RD

Michael Sermon, PA-C

Jenni Terry

Alexis Villaret, MS

Mikayla Todd, FNP

Teresa Gabiola Shelton, PA-C

Amy Ray, FNP

Karen Callagy, PA-C

Amber Warren, PA-C

Jennifer Hudson, DO, FACOG

Mario Brus, MD

Mark Holthouse, MD