Mark Holthouse, M.D., IFMCP

Dr. Holthouse, MD, IFMCP, is board-certified in family and integrative medicine and a Certified Functional Medicine Practitioner. Passionate about delivering proactive, patient-centered care, Dr. Holthouse focuses on addressing root causes rather than merely managing symptoms. Frustrated with the limitations of traditional medicine, he transitioned to a healthcare model that prioritizes prevention, cures, and lasting wellness over simply prescribing medications. Dr. Holthouse is dedicated to empowering patients to achieve optimal health through personalized and holistic approaches.

Specialties

Hormone Optimization
Age Reversal
Insulin resistance, pre- diabetes, and type 2 diabetes
Fatty liver disease
Cholesterol and blood pressure abnormalities
Preventive cardiology and cardiovascular risk
Metabolic Weight Loss
Peptide Therapy
GI and Digestive Disorders
Long Covid
Heavy Metal Detox
Autoimmune
Mold, Lyme, Mast Cell Activation Syndrome

Locations

Eagle Clinic, Telemedicine (California, Idaho, Nevada, Oregon)

Loyal

Mentor

Integrity

Empathetic

About Mark Holthouse, M.D., IFMCP

Credentials & Certifications

Medical Doctor
Board Certified in Family Medicine and Integrative Medicine

What brought you to the world of functional medicine?

I got into functional medicine because I wanted to take a more proactive approach to care, focusing on prevention and addressing problems before they started, rather than just reacting to them. I grew tired of simply dispensing medications and felt compelled to be part of a true healthcare system—one that prioritizes health and healing, not just disease management. My goal has always been to understand and address the root causes of illness, shifting toward cures and prevention rather than simply naming a condition and prescribing a corresponding medication.

What do you do on your free time?

I’m an avid mountain biker, dual-sport off-road motorcyclist, and enjoy hiking, sailing, kayaking, and skiing. I also have a passion for Thai food and photography. My wife, Tammie, and I love spending time with our two sons and their wives, enjoying all these activities together.

Where is your hometown?

Lodi, California

Training Institutions

University of California Davis Health
David Grant Medical Center
Loma Linda University School of Medicine