Yorba Linda, CA Dentist
Knoll Family Dentistry
19851 Yorba Linda Blvd Suite 201
Yorba Linda, CA 92886
(714) 777-9403
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Dentist in Yorba Linda, CA

All our professionals at Knoll Family Dentistry maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in dentistry.

Timothy Rhee, DDS

Yorba Linda, CA Dentist

Knoll Family Dentistry

Dr. Timothy Rhee is a distinguished dental practitioner in Orange County with strong emphasis on General and Cosmetic Dentistry. His soft touch and extensive knowledge puts patients at ease in a relaxed and comfortable environment.Dr. Rhee obtained his DDS degree from the University of Maryland in Baltimore in 2003. He furthered his dental education by obtaining an Advanced Dental Education Certificate in 2004 with emphasis on Cosmetic Dentistry and Advanced dentistry. He later furthered his education by obtaining Second Year Certificate in General practice Residency in 2006 with an emphasis on Dental Implants and Full mouth reconstruction. On a regular basis, Dr. Rhee further extends his education and stays current on dentistry.Today, Dr. Rhee enjoys private practice in Yorba Linda. Dr. Rhee enjoys mountain biking, skiing, golfing and spending time with his friends and family.

LaGena Gorham, Front Office


Hi, I'm LaGena Gorham..... I live in Brea and happily married with 5 wonderfully raised children and am now enjoying 6 wonderful grandchildren. In my free time I enjoy going to the river, reading, gardening and spending time with my family. I started in dentistry 23 years ago. My skills have been developed through experience and various management courses. I enjoy my job and look forward to helping you as our patient understand your dental insurance as well as your financial options as you begin your journey toward the smile you deserve. I am also able to navigate the complexities of dentistry which in turn enables me to help you with any questions you may have...

Laurel Cullen, RDA

Hi my name is Laurel and I have been a Registered Dental Assistant (RDA) for 18 years and I love it. I was born and raised Diamond Bar. I have always wanted to be a RDA from day one. I believe patients have to be treated with love and kindness on all levels. I ensure they are being delivered the best quality care.

 I have two sons and enjoy my days off camping, spending time with family and my three dogs.

Gina Campbell, RDH


I was raised in the city of Orange where my parents still live. I graduated from Orange High School in 1985 where I lettered in Volleyball, Basketball and Softball. I was also involved in ASB my senior year. I began my college education at Santa Ana College, where I played volleyball for two years. I transferred to Cypress College to finish my prerequisites for Dental Hygiene and graduated with an A.A. Degree in 1988. I continued my education in the Dental Assisting program, then received a 2 year certificate in Dental Hygiene from Cypress College in 1991. I have been married for 17 years now and have 2 wonderful boys ages 14 and 12. I am involved in the PTA, I love to be team parent and do family things. My hobbies are reading and watching college or professional football with my husband. I have worked at Knoll Family Dentistry for almost 11 years

Stephanie Nielson, RDH

I was born and raised in Torrance California. I began my college education at El Camino College where I played soccer the woman's team. After graduating in 1991, I continued my education at USC where I played soccer there as well. Although,  I obtained my Psychology Bachelors degree I knew I always meant to be a Dental Hygienist. I applied and was accepted into the program at Cerritos College where I graduated in 2007 and been working in the field every since. I am married and have four children, two girls and two boys. My hobbies are anything athletic, especially running and of course soccer. I have been with Knoll Family Dentistry since 2010 and am very lucky to work with such a wonderful staff and Doctor.

Contact Us

Our Location (714) 777-9403

Office Hours

Monday 08:30 AM - 05:30 PM
Tuesday 08:30 AM - 05:30 PM
Wednesday Upon Request
Thursday 08:30 AM - 05:30 PM
Friday 08:30 AM - 05:30 PM
Saturday Second Sat. each Month
Sunday Closed

Weekend appointments available on request.