About Our San Marcos Practice


We are proud to provide a state-of-the-art facility for the highest quality dental care available. It is one of our top priorities to protect the well-being of our valued patients. For this reason, our office meets and surpasses all OSHA (Occupational Safety and Health Administration) and CDC (Center for Disease Control) standards. We are confident that you will feel right at home in our office as we welcome all patients as if they were family.


If you would like to make an appointment, please contact our office by phone or email. Our office facilitates communications and emergency calls and appointments are available and welcome, especially for new patients seeking help.


We will be more than happy to submit all insurance forms for you and help you recover the most from your benefits. We will do everything we can to help you afford the treatment you need and want. For patients who require major work, a complete payment plan is designed with an appropriate payment schedule. Forms of payment accepted by the office are check, cash, or any major credit card.


If you are unable to keep an appointment, we ask that you kindly provide us with at least 24 hours notice. We ask for this advance notice so that we can offer this appointment to another patient. A fee may be charged if a patient does not show up for an appointment without sufficient notice.

We would like to take this opportunity to thank you for choosing our practice for your dental care.

Meet the Doctors

Dr. Roberto Salazar

Dr. Salazar, D.D.S.

Dr. Roberto Salazar attended Cal State San Marcos for his undergraduate studies in Molecular Cell Biology.

Upon graduation, he worked at The Scripps Research Institute (TSRI) in the neuropharmacology department. Dr. Salazar continued on to UCLA for a post-baccularate program which would eventually lead him to Loma Linda University where he received his Doctor of Dental Surgery degree.

Currently, he remains up to date with the latest procedures such as Laser Dentistry for both restorative, and periodontal needs. Dr. Salazar is a member of the American Dental Association, California Dental Association, American Academy of Cosmetic Dentistry, International Congress of Oral Implantologist, Dental Organization for Conscious Sedation, and one of the few Six Month Smiles (adult cosmetic braces) providers in the area.

He has dedicated numerous hours in mission work here in Southern California to remote areas of Nicaragua, Mexico, and Peru. Dr. Salazar strives to provide the finest dental care for all his patients.

Dr. Marlene Thompson

Dr. Thompson, D.D.S.

Dr. Marlene Thompson graduated from San Martin de Porres University in Lima, Peru. Dr. Thompson maintains the highest level of accreditation and pursues ongoing education to offer the most appropriate, and beneficial procedures in Dentistry.

Dr. Thompson is a member of the following organizations: American Dental Association, California Dental Association, International Association for Advanced Orthodontics, Dental Organization for Conscious Sedation, Academy of Laser Dentistry, Botox in Dentistry, UCLA School of Dentistry Endodontic Continuum, Advanced Cosmetic Training at Esthetic Professionals, IOCI (International Congress of Oral Implantologists) – The world’s largest dental implant society, as well as the Peruvian-American Dental Associaton to serve the underserved community.

Dr. Thompson participates in many missionary trips to help the underserved because she believes in giving back to the community and likes to serve others. Beginning with your first visit to Dr. Thompson’s office, you will experience gentle and professional treatment. Dr. Thompson is an experienced and caring dentist. She will create a treatment program for your unique needs, helping you have healthy teeth and gums for a lifetime.

Our Office

our practice lobby
hallway inside our practice
an examination room with a dental chair and monitor
waiting area inside our practice
an examination room with a dental chair and monitor