About Marc Geissberger DDS, MA Dr. Marc Geissberger was born in San Francisco and raised in Marin County. He attended Marin Catholic High School. He earned his Bachelors of Science degree in Biology from Saint Mary’s College in Moraga, California. After completing his undergraduate degree he attended the University of the Pacific, School of Dentistry, earning a Doctor of Dental Surgery degree in 1991. While in dental school he served as class president his first two years and as student body president during his final year. Additionally, he was elected into Omicron Kappa Upsilon and Tau Kappa Omega dental honor societies for scholastic excellence.