Central Texas, then support anywhere

Integrative & Functional Oncology in San Antonio, Texas

Root Causes Oncology provides integrative oncology and functional medicine for cancer patients — metabolic cancer care, IV therapy, immune support, and cancer nutrition support that work alongside your conventional oncology team. We do not replace your cancer care; we support the whole person around it.

Your physicians

Dr. Lucas Tims, ND, FABNO — Co-Founder & Head of Oncology. Holder of the FABNO designation, the highest credential in naturopathic oncology, held by fewer than 125 physicians in North America. Medical Director Emeritus of the Riordan Clinic and former Medical Director of Integrative Oncology at City of Hope.

Dr. Derek Guillory, MD — Founder & Chief Medical Officer.

The SEED Program & therapies

A focused one-week intensive followed by six months of membership support, built around six core therapies. Read our evidence whitepapers:

• Intravenous High-Dose Vitamin C as a cancer adjunct
• Mistletoe (Viscum album) therapy in oncology
• Hyperbaric oxygen therapy (HBOT) for cancer patients
• Medical ozone therapy
• Hyperthermia in integrative oncology
• Terrain support medications in cancer care

Visit us

Root Causes Oncology works alongside your existing cancer care. We do not promise outcomes, and nothing here is a substitute for advice from your treating oncologist.