Geoffrey Pena

I am a general dentist and attended the University of Nevada, Las Vegas School of Dental Medicine. My mother is a dentist, so dentistry has always been a part of my life. I joined Big Smiles because I find it rewarding working with and providing care for children. Outside of dentistry, I enjoy running races […]





Diana Quillin

Dr Diana Quillin has 40 years of experience in dentistry. She retired from her general practice in 2017 and since then has worked at various volunteer organizations to provide dental care to underserved populations. Big Smiles has allowed her the opportunity to provide much needed dental care to children in various communities. As a grandmother […]


Alan Rabe

I attended California Polytechnic State University, and Luis Obispo, for my undergraduate degree. Dentistry is my second career; I was employed as an engineer by a large international engineering firm in San Francisco. I received my dental training from the University of California, San Francisco, and was in private practice for 40 years. My wife […]