All our professionals at Bernardo Plaza Endodontics maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in dentistry and the field of endodontics. In fact, both of our providers have achieved Diplomate status from the American Board of Endodontics recognizing their exceptional knowledge, skill and expertise in the specialty of endodontics.

brianJ. Daniel Brian Jr, DDS, MS

Dr. Dan Brian is a native Californian but lived most of his early years in Texas where he received a BA in Chemistry from Rice University. He then earned his D.D.S. degree and graduated with honors from the University of Texas at Houston. After being commisioned in the United States Navy he completed an internship at the Naval Hospital, Portsmouth, Virginia.

Dr. Brian first developed a keen interest in Endodontics while stationed at the Naval Base at Rota, Spain where he provided the endodontic care for the base personnel. He then returned to the University of Texas and completed a residency and masters program in Endodontics.

Subsequently, in 1985 he became Board Certified as a Diplomate of the American Board of Endodontics. During his time in the Navy Dr. Brian was active in mentoring and teaching endodontics and was also the director of the General Practice Residency Program at the Naval Hospital, San Diego.

After his Navy career Dr. Brian opened his endodontic practice in Rancho Bernardo in 1993. He is an active member of the American Association of Endodontists, the California State Association of Endodontists, the American Dental Association, the California Dental Association and the San Diego County Dental Society.

Dr. Brian enjoys spending time with his four children, three grandchildren and his two dogs. His other interests include photography, landscaping and traveling.


folkRobert B. Folk, DDS, MS

Dr. Rob Folk is a native of the Pacific Northwest. He completed his undergraduate studies at Western Washington University in Bellingham, WA in 1994. Dr. Folk then went on to receive his D.D.S. from the University of Washington in 1998 where he graduated "with honors" and was awarded membership in the honorary dental society, Omicron Kappa Upsilon. Following his dental training, Dr. Folk was commissioned as an Officer in the U.S. Navy.

His first duty station in the Navy was overseas in Keflavik, Iceland where he served for 3 years. He then transferred to Bethesda, MD where he completed his Endodontic specialty training at the Naval Postgraduate Dental School and received a Masters Degree in Health Sciences from The George Washington University in Washington D.C. in 2003.

Following his specialty training, Dr. Folk had tours of duty as the Endodontics Department Head at the Pentagon, in Washington D.C. and the Marine Corps Recruit Depot, in San Diego, CA. After serving his country, Dr. Folk moved into full-time private practice in San Diego.

He is Board Certified by the American Board of Endodontics and is an active member of the American Association of Endodontists, the American Dental Association, the California Dental Association, the California Association of Endodontists and the San Diego County Dental Society.

Dr. Folk and his wife, Dr. Gretchen Folk, currently reside in San Diego, and have two children, Gillian (13) and Benjamin (9). In his spare time, Dr. Folk enjoys spending time with his family, running and surfing.


Our success depends on the dedication of our employees and we are highly selective in choosing the members of our team. We believe in putting our patients first and all of us here at Bernardo Plaza Endodontics strive to exceed your expectations through a gentle, caring approach to quality dentistry.


heidiHeidi Barrett - RDA
Hi I'm Heidi. I am originally from a small town in the San Bernardino Mountains. I received my Dental Assisting Training from United Education Institute in Ontario, California. I moved to San Diego with my family in 2005 and have worked for Dr. Brian and Dr. Folk for past 9 years.

When I am not at work I enjoy photography, art and playing with my children.


mariaMaria Ronalds - RDA
Hi my name is Maria and I am one of Dr. Brian's and Dr. Folk's assistants. I have lived in the North County area all my life. I have been in the dental field for over 15 years now with the last 9 working with Dr. Brian and Dr. Folk. It has really been a pleasure to work for such wonderful Doctors who always put their patient's concerns and anxieties first. I really enjoy coming to work each day!

Outside the office, I enjoy spending time with my family.


lLeticia "Lety" Villicana - RDA
I was born and raised in San Diego County and have worked in the dental field for 13 years. I have been with Dr. Brian and Dr. Folk for over 8 years now and have really enjoyed working with great Doctors who truly care about their patients.

Outside of the office I like going to the beach and spending time in the sunshine.