Muir Station Smiles

Dr. Ruben Espinoza is a pediatric dentist who strives to offer the highest quality of care for children in a warm and caring atmosphere, and fully attentive to the patient's needs. He’s a strong believer in early preventative measures and education to facilitate positive attitudes towards establishing and maintaining a good oral health.
Dr. Espinoza is a native of the Bay Area, growing up in the city of San Mateo. He attended the University of California, Berkeley where he received his bachelor's degree in molecular and cell biology - Go Bears! His dental degree was then obtained from the University of California, San Francisco.

A native of the Bay area, Dr. Michael Simontacchi-Gbologah was raised in Alameda.

He attended Howard University in Washington D.C., where he graduated Phi Beta Kappa, Summa Cum Laude, earning his Bachelors of Science in Chemistry, while serving as captain of Howard’s Division 1 soccer team.

In 2008, he earned his Doctorate of Medical Dentistry at the prestigious University of Pennsylvania, School of Dental Medicine. He continued on at the University of Pennsylvania, serving as Chief Resident during his post-doctoral Orthodontic residency and received his Orthodontic specialty certificate in 2010.

In his spare time he enjoys spending time with family and friends, mountain biking, hiking, and being active. He is dedicated to his profession and passionate about working with his patients. His goal as a clinician is not only to create beautiful, functional and healthy smiles, but also to build mentorships with his patients and serve as a positive and uplifting voice in their lives. .