Meet Our Doctors

General Dentists

Dr. Rodney W. Boyd 

Dr. Rodney W. Boyd was born in Michigan. He received his Bachelors Degree from Loma Linda University in Loma Linda, CA and is a graduate of the University of Southern California School of Dentistry.

Dr. Boyd has been in private practice since 2001. Dr. Boyd has served on the faculty of the USC Dental School in the Department of Periodontics as a clinical instructor. His experience includes cosmetic dentistry, dental implants, and restorative dentistry.

As a dedicated husband and father of two daughters, Dr. Boyd has many interests outside of Dentistry. He enjoys Volleyball, Mountain Biking, Flying and Snow Skiing.

Dr. Boyd is a member of the American Dental Association and the American Academy of Group Dental Providers.

Dr. Alison Austin
 Dr. Alison Austin  graduated Magna Cum Laude and Phi Beta Kappa from the University of California, Irvine with a Bachelor of Science Degree in Biological Sciences. She received her Doctor Degree in Dental Surgery from the University of California, Los Angeles.

After graduating from UCLA Dr. Austin went on to complete a General Practice Residency at the Veteran’s Administration Hospital in San Diego.

Dr. Austin is committed to providing state-of-the-art dentistry in a relaxing and comfortable atmosphere. She enjoys treating patients of all ages and enjoys all areas of general dentistry.
She is also a certified Invisalign provider and loves to improve patient’s esthetics, self-confidence, and hygiene with Invisalign treatment.

Dr. Austin is a member of the American Dental Association, California Dental Association, Tri-County Dental Society, Academy of General Dentistry, Alpha Omega International Dental Fraternity, the Orange County Women’s Dental Society, and the Riverside-Corona Dental Study Club.

Pediatric Dentists

Dr. Cecilia C. Kao
 Dr. Cecilia C. Kao  was raised in Northern California. She attended college in San Diego, California. Following graduation, she attended the University of California at San Francisco Dental School. After earning her DDS degree, Dr. Kao completed a Residency at the Loma Linda University in Loma Linda, California, where she received a Masters Degree in Pediatric Dentistry. 

Dr. Kao entered into private practice in 2003. She is also a part t ime faculty member at Loma Linda University Department of Pediatric Dentistry. She is a member of the American Dental Association, California Dental Association, American Academy of Pediatric Dentistry, and the California Society of Pediatric Dentistry.

Dr. Kao has many interests outside of her dental specialty. As a dedicated wife and mother of three children, she also enjoys cooking, gardening, and riding her dirt bike.

 Dr. Janine Tran is a local resident. Born and raised in Orange County. Her love of children and commitment to children’s dental health has taken her on mission trips around the world providing dental care to underserved communities. She graduated Magna Cum Laude from UCLA and Loma Linda University with top honors.

Dr. Tran is a member of the American Academy of Pediatric Dentistry, the California Society of Pediatric Dentistry, American Dental Association, California Dental Association and the Orange County Dental Society.


Dr. Peter Kimball :  I fell in love with orthodontics as a child when my father, Dr. Stanley C. Kimball II, also an orthodontist, gave me the opportunity to make his retainers and other orthodontic appliances. After learning that I had a real artistic gift, I focused my efforts on learning to be an orthodontist. I grew up locally, attending El Morro Elementary, Thurston Middle School, and Laguna Beach High Schools. Directly after high school, I attended Brigham Young University in Provo, Utah, and served a (two-year) mission for my church in Puerto Rico. I earned my doctorate at Washington University, where I graduated top in my class. I then went on to specialize in orthodontics at Marquette University, graduating with honors.

What makes me different from all the rest is I understand that every face, like a snowflake, is unique and different. As an orthodontist in Orange County, CA, I carefully custom design each smile with my 10-Step Kimball Smile Analysis. This – combined with my experience, knowledge, and careful eye for aesthetics – allows me to enhance whatever makes you special by making your smile the very best it can be. Over the last 25 years, I have had the fortunate opportunity to provide tens of thousands of patients with beautiful, panoramic, natural, healthy smiles. By utilizing state-of-the-art orthodontic technology and techniques, I take pride in ensuring that each patient enjoys maximum comfort and the shortest treatment time possible. I am passionate about sharing my expertise with everyone, and I’ve had multiple patients travel from all parts of the country to experience the Kimball Orthodontics difference. Kimball Orthodontics has also been featured in many prestigious magazines, including Parents and Family Fun, for our excellence in orthodontics.

I am a lecturer and leader in orthodontic software technology and the author and creator of WaveOrtho. I am the only orthodontist in the world who has designed and developed a comprehensive Orthodontic Practice Management Software to efficiently manage every aspect of an orthodontic practice. You can find it running my own practice, as well as many other premier orthodontic practices throughout the world.

During my free time, I enjoy distance running. I have completed over 30 marathons, including the prestigious Boston Marathon 9 times and 2 full Ironman races. I also enjoy surfing, snowboarding, skiing, golf, spending time with my wife (of 30 years!) and 3 children, my new grandson “Nash”, and hanging out with my six brothers.

Dr. Ron Simus

Dr. Ron Simus received his dental and orthodontic training at Loma Linda University. He enjoys the field of orthodontics and since 1993 has provided families with quality care for generations.

Dr. Simus had the opportunity to run his own private practice for 14 years and also spend 15 years working with a cancer treatment project.

He is a member of the California Dental Association, American Dental Association of Orthodontists and the Pacific Coast Society of Orthodontists.