Front Desk Staff

Our Front Desk staff handles your customer service matters. They are happy to answer your questions, find appointment time that work for you, assist with paperwork, and troubleshoot your concerns.

Andrea Gamboa

Office Manager

Andrea graduated from NOROP in 2009 and has been in the dental field ever since. As an Office Manager, she strives to help our patients in any way she can. She enjoys getting to know our patients and helping them feel comfortable and welcome with every appointment! She is proud to work for doctors who always go beyond the standard of care and who are able to do a wide variety of dentistry all under one roof. In her spare time she enjoys spending time with her family, hiking, traveling and going to Angels games!

Trisha Lamb

Financial/Treatment Coordinator

Tricia attended NOROP and has been in the dental field for nearly 30 years. Tricia can answer your questions regarding financials and/or treatment. She does her best to make financial arrangements that suit each patient’s needs. She is so proud to work for such ethical and amazing doctors and staff. Tricia cherishes her time with her husband of 25 years, her two beautiful children and her two adorable boxers!

Gina Ross

Insurance/Appointment Coordinator

Gina is a graduate of Pasadena City College’s Dental Hygiene Program where she was presented with the Clinical Achievement Award. She has been passionate about practicing dental hygiene in the community for over 23 years, 20 of which have been at this very practice! Gina’s favorite part of being a Dental Hygienist and Appointment Coordinator is the personal fulfillment that comes from partnering with patients to help improve their oral health. She loves that she can provide a valuable service while establishing caring and trusting relationships with patients. In her spare time, Gina enjoys volunteering, reading, traveling, art and trivia. She has been married for 15 years and is the proud mother of 3 children.

Registered Dental Assistants

Our Registered Dental Assistants work closely with the Doctor and hygienists. They provide high-quality care and support.  Our Dental Assistants work chairside, assist with procedures, talk with patients about the treatment, and provide post-op information, too. They enjoy educating people about dental health and strive to make every visit painless and worry-free.

Josua Bair, RDA

Registered Dental Assistant

Josh graduated from U.E.I. College and has been in the dental field for more than 4 years. Josh thrives to excel in his career. Josh loves making personal connections with every patient and getting to know each of them and hearing their stories.

In his free time, he enjoys going to the gym, working on cars and going camping.

Bryan Yamamoto, RDA

Registered Dental Assistant

Bryan attended U.E.I. College where he graduated valedictorian of his class! He has been in the dental field for over 4 years. As a dental assistant, Bryan enjoys getting to know each and every patient and making their dental experience a positive one.

In his free time, he enjoys spending time with his family, working out and rooting for the Angels.


Registered Dental Hygienists

Our Registered Dental Hygienists provide a wide range of preventative and maintenance oral hygiene care.  They are gentle, but thorough, and take time to educate patients about their unique dental health.

Diana Rosander

Registered Dental Hygienist, B.S.

Dianna graduated from the University of Southern California in 1995 and has been practicing as a dental hygienist ever since. As a dental hygienist, she loves that she is able to develop personal relationships with patients while improving their overall health at the same time! Dianna has one son and has been married for more than 25 years. She loves all kinds of outdoor activities, along with her new hobby which is bike riding!

Marta Gossett

Registered Dental Hygienist

Marta graduated from University of Southern California with a bachelor of science degree in dental hygiene and has been practicing in the field for over 25 years! She has truly found her passion in dental hygiene and feels that the interactions and bonds she has built with the patients is the most rewarding part of her profession. She feels very lucky to have the opportunity to meet so many amazing people while promoting oral health at the same time! Marta has been married for 27 years and has two kids, one boy and one girl. In her free time, she enjoys spending time at the beach, running in 5K and 10K charity runs, and learning to become a costume make up artist.

Jason Uribe

Registered Dental Hygienist

Jason attended Cypress College for Dental Hygiene and graduated in 2016. He enjoys being able to connect with his patients and helping them to improve their oral health so that they leave smiling.


In his free time, he enjoys drawing, camping and going to Disneyland with his friends.