Photo of Dr. Tracey Thomas, FABNO, at Walnut Creek Naturopathic 

Dr. Tracey Thomas, ND, FABNO, CNS

Dr. Tracey Thomas is a board-certified Naturopathic Doctor and Certified Nutrition Specialist who is passionate about helping improve the quality of life and longevity of individuals through personalized integrative medicine.  As a Fellow of the American Board of Naturopathic Oncology, Dr. Thomas has over 18 years of experience in patient care, including 9 years with Cancer Treatment Centers of America as a Naturopathic Oncology Provider, Naturopathic Residency Program Manager, and Integrative Medicine Lead for the Prostate Center of Excellence.  She has significant experience and training in integrative oncology as well as treating autoimmune conditions, hormonal and thyroid imbalances, headaches, gastrointestinal complaints including IBS, fatigue, diabetes, and recommending healthy weight loss protocols. 

With a strong belief in using food as medicine, while offering a comprehensive treatment approach to utilize the best combination of conventional and integrative medicine options, Dr. Thomas works collaboratively with physicians, oncologists, and healthcare providers to offer the most up-to-date personalized care plan.  She prescribes evidence-based natural medicines to optimize health, minimize side effects of conventional treatment while avoiding drug-nutrient interactions, and provides prevention strategies to reduce the recurrence of cancer. 

Based on an individual’s genetic profile, Dr. Thomas works with athletes to create personalized nutrition and fuel plans in order to improve body composition and aerobic capacity, reduce injury risk and inflammation, and maximize athletic performance.

When she is not seeing patients, Dr Thomas enjoys spending time with family, friends and her dog, exploring the outdoors, and traveling.



  • Integrative Oncology and Cancer
  • Athletes – Personalized Sports Nutrition and Performance Testing
  • Autoimmune Conditions – Hashimoto’s Thyroiditis, Rheumatoid Arthritis, Multiple Sclerosis, Celiac Disease
  • Weight Loss
  • Hormonal Imbalance – Thyroid & Reproductive
  • Diabetes
  • Gastrointestinal Complaints and Imbalances – IBS, IBD, gas, bloating, reflux


Dr. Thomas earned her Doctorate from the National University of Naturopathic Medicine in Portland, Oregon, and is a Fellow of the American Board of Naturopathic Oncology.   She also has a Bachelor of Science Degree in Kinesiology from Indiana University