We offer personalized care to our patients, and our primary concern is your health and comfort!

Meet Gannon Lee, D.D.S.

Dr. Gannon Lee is an Orange County native who has been practicing dentistry for twenty years. Dr. Lee earned his dental degree from the University of Southern California, after earning his bachelor's degree in Biological Sciences from the University of California, Irvine.

After nearly a decade in his private practice in Encinitas, California, Dr. Lee decided to relocate back to Orange County. It was a very difficult decision to leave good friends, patients, and relationships he has built up over the years. However, he and his wife had just welcomed a baby girl to their family and they realized it was the best choice to relocate back to be closer to family. Dr. Lee was a former Junior Olympic swimmer and in his free time, still enjoys swimming. He is also an avid Los Angeles Lakers fan and cheers for his USC Trojans. Aside from patient care, he and his wife are busy raising two wonderful girls: Elise and Kathryn.

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Our Family Caring for Yours

Our commitment to excellent oral care is one of the ways in which we welcome patients to our office. We have a trained and dedicated staff that strives to create a pleasant and comfortable experience. Dr. Gannon Lee specializes in high quality cosmetic and preventive care that will help you maintain healthy teeth and gums throughout your life.

We are pleased to have you visit our office for dental care and will make sure your experience here is one you can smile about. At Dr. Gannon Lee’s office, you are a patient and a friend, because our dental care is dedicated towards fulfilling your personal and dental needs.

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We Accept All PPO Plans
We also offer an in-house dental savings plan.
Please contact us for details!


A Mission Viejo winner of the 2015 Patients’ Choice Awards in Dentistry

Verified by Opencare.com

What our patients are saying...

"I have been to a lot of Dental Professionals and there’s no comparison with this office. The staff and Doctor Lee, are the best I’ve seen. Everyone is wonderful, compassionate and professional. I believe I have finally found a doctor that can help me!! Thank you Doctor Lee!"

"Friendly and efficient."

"Excellent, Friendly and Professional!!"

"Dr Lee and his staff are very prompt, knowledgeable and friendly."

"Called yesterday and was able to be seen today. Again, excellent service, everything explained and all questions answered. Dr. Lee and staff do a great job."

"Dr. Lee has been my dentist for over 5 years now and I've been very pleased. He has handled cavities, crowns and keeps an eye on pending problems. I always feel as though he has my best interests and health in mind. I appreciate his honesty and advice. His calm demeanor is extremely helpful to put …"

"The entire staff at Gannon Lee DDS is FANTASTIC! I love the “fun spirit” of everyone at the practice! All members of the staff are incredibly professional, and Dr. Lee spends personal time with all of his patients."

"Dr. Gannon Lee and his staff are the best! He is a perfectionist and that means everything he does is excellent. I worked in the dental field in the past and I understand what a skilled dentist he is. We have recommended a dozen friends to him. They have all been very impressed with him and his …"

"Highly recommend Dr. Lee for anybody looking for a dentist! The staff is professional and very friendly. The practice uses the latest tech for treatment."

"Great service. First class treatment. Very gentle.."

"Dr. Lee is very thorough, personable and genuinely cares about his patients. Had a temp crown done today and it went great. I have extreme TMJ pain and he was so patient with me when I needed to take breaks. Highly recommend."

"Dr. Lee is very knowledgable about sleep apnea."

"Appointment went very well. Professional staff and Dr. Lee answered all my questions. Will definitely be going back. Was back again today 11/16/2021 and again the visit was very professional and painless. I would recommend Dr. Lee and his staff very high. They continue to do excellent dental work.…"

"A very good medical practice and well organized. Dr Lee is great everyone in the staff is."

"I have been to a few dentists in my life and this office is by far the most wonderful office I’ve ever been to. The staff is genuinely kind and efficient. Dr. Lee is extremely knowledgeable and a great Dentist. I would highly recommend having Dr. Lee as your Dental professional and you will never r…"

"Dr Lee and his staff are so nice and professional. The hygienists are gentle and very skilled. I’ve been going to this office since it’s beginning and going to the dentist is always a pleasant experience. Highly recommend!"

"A caring staff and doctor completely professional and extremely knowledgeable. Dr.lee is an expert in his field and has done wonders for my sleep apnea. Thank you all from the bottom of my heart."

"Super friendly, explained treatment well (went for TMJ) and didn’t push for invasive treatment"

"Excellent practice!! Clean and professional staff."

"Wonderful dentist, very caring and takes his time to hear your concerns. His office staff goes out of there way to help you with any questions."


26302 La Paz Rd Suite 210, Mission Viejo, CA 92691

Phone: (949) 380-0315

Office Hours

Monday : 8:00 am - 5:30 pm

Tuesday : 8:00 am - 5:30 pm

Wednesday : 8:00 am - 5:30 pm

Thursday : 8:00 am - 5:30 pm

Friday : Closed

Saturday : Closed

Sunday : Closed

Get in Touch

Email: [email protected]

Phone: (949) 380-0315