Dr. Villanueva also works as a private health consultant, primarily helping people understand their personal health and medical information. He is an expert in clearly explaining difficult or confusing topics, especially when relating to health and medical issues. He is a natural health advocate and recently started teaching boxing & fitness classes.

As a teenager, he competed in amateur boxing and was a Regional Golden Gloves Champion. He later earned a Cross Country scholarship and helped his college team win the State Championship for the first time.

Dr. Villanueva has been coaching & training people in boxing fitness since June 2023 and became a Certified USA Boxing Coach in May 2024. In his spare time, he enjoys being with his family and friends, going to the park, reading, and learning new things.