Brea Ranch Dentistry
Dental
936 E. Imperial Hwy
Brea,
CA
92821
(714) 990-4911
Mon: 9:00AM - 5:00PM
Tue: 9:00AM - 1:00PM
Wed: By appointment only
Thu: 9:00AM - 1:00PM
Fri: 9:00AM - 5:00PM
Sat - Sun: By appointment only
Services
- Braces
- Cosmetic - Veneers
- Cosmetic - Whitening
- Cosmetic Dentistry
- Dental Implants
- Dentures
- Digital X-Rays
- Endodontic - Root Canals
- Endodontics
- General Dentistry
- Oral Cancer Screening
- Oral Surgery
- Orthodontic - Braces
- Orthodontics
- Pediatric Dentistry
- Periodontal - Deep Cleaning
- Periodontics
- TMJ - Temporomandibular Joint Disorder
- Teeth Extraction
Languages
- English
- Korean
- Spanish
Insurance
- Most insurance accepted
Payments
- American Express
- Care Credit
- Cash
- Check
- Debit
- Discover
- Financing
- Mastercard
- Visa
Staff
Johnny Koo
Certifications & Memberships

5 stars Pam F Featured review
My second visit was even better than the first. What I love? No waiting! My appointment time was exactly on target. And Dr. Koo is just excellent - fast, professional and above all, kind. She made sure I was comfortable throughout the procedure. Afterward, my insurance and billing information had been efficiently checked and verified by Susan, and my bill was actually less than what I thought it would be, thanks to her diligence. I couldn't be more pleased with the whole experience. For the first time in my life, instead of dreading it, I'm looking forward to my next visit.
Patients like you Pam make it easy for us to be kind :)
5 stars David B Customer since 2012
I am grateful for the competent, caring service provided by Drs. Koo and the good staff at Brea Ranch Dental.
5 stars Dawn F Customer since 2011
This dentist office is awesome. The dentists are very nice and knowledgeable. The office manager is very helpful and knowledgeable when it comes to all the different insurance plans.
Thank You so much Dawn, Great patients make it easy for us to be nice and helpful :)
5 stars Thomas F Customer since 2010
I don't have to tell you that I was impressed with Your employee's the have always been very professional and friendly and professional! and the dr made me feel comfortable and was also very knowledgeable I would recommend brea ranch dental to anyone thank you!
Thank You so much for your kind words. Patients like you make it easy to friendly. :)
5 stars Richard C Customer since 2012
9; 9; 9;
Thank You for the 9's !!
5 stars Rosemary S Customer since 2012
Love them,they are top of the line.
Thank you so Much Rosemary , it is a pleasure to serve your family :)
4 stars Pam F Customer since 2013
When my Medicare Advantage Plan changed to a new dental insurance, I had to quickly find a new dentist.
I'm one of the worst scaredy-cats in the world when it comes to dentistry, and after five years with my old dental group, I dreaded the search.
I began in Brea; there's nothing worse than driving 20 miles to get home with an aching jaw and a Lidocaine hangover. My questions were simple: does the dentist work on old folks, is he gentle on our ancient teeth, and most important, does he appreciate our fears from the 1950's when many dentists were retired from the Army and considered Novacaine to be strictly for sissies and more precious than gold?
Marissa at Brea Family won me over quickly with her warm, friendly manner and professional assurances, and I was sold when she told me Dr. Koo had been to our senior center to introduce seniors to her practice.
When I arrived for my first appointment, I immediately felt comfortable. The lobby is small but inviting with an understated, simple decor - fresh and lovely.
Within minutes I was with Dr. Koo and she was wonderfully patient and considerate. The dreaded tools and equipment gleamed with cleanliness. Best of all, Dr. Koo was skilled and fast. I had no time to be afraid and my procedure was done. I think my thorough x-rays actually took longer.
I'm actually looking forward to my next appointment. Definitely a first.
Pam Freeman
Brea, CA 92821
Thank You so much, We value you as a patient and appreciate your kind words.
5 stars Victor G Customer since 2009
Excellent...
Thank You :)
5 stars David B Customer since 2012
The Brea Family Dentistry team is a competent, caring team.
We appreciate all your kind words ,Thank You so much
5 stars Rachel H Customer since 2012
I always enjoy my visits, they always make me feel my comfort is the most important thing. I have shared my experiences with friends and family.
Our patients are like family and we thank you for your confidence in us ! :)
5 stars K'Lynn S Customer since 2012
Very professional and friendly. Both Dentists and staff make going to the dentist painless.
Thank you so much!!