Haha Dental
Johnathan Lee, DDS:
Practice Profile Page


Johnathan K. Lee, DDS

Haha Dental
Fullerton, CA

Haha Dental
Hacienda Heights, CA














A list of major dental treatments which I offer my patients:

Dental cleaning

White fillings


Inlays & onlays



Clear aligners

Porcelain veneers

Teeth whitening

Dentures & partials

Root canal treatment

Tooth extraction

TMJ treatment

Dental implants


Offers Even28 at-home™? No

Offers Even28 at-dentist™? No

Offers Invisalign®? Yes


Monday: By appointment only

Tuesday: 10:00 am to 4:00 pm

Wednesday: Closed

Thursday: 10:00 am to 6:00 pm

Friday: By appointment only

Saturday: 10:00 am to 6:00 pm

Sunday: 9:00 am to 2:00 pm


Monday: 10:00 am to 7:00 pm

Tuesday: 9:00 am to 4:00 pm

Wednesday: 10:00 am to 7:00 pm

Thursday: 9:00 am to 6:00 pm

Friday: 10:00 am to 7:00 pm

Saturday: 9:00 am to 6:00 pm

Sunday: 10:00 am to 6:00 pm



Check out some of my treatment photos:



Check out what some of our happy patients are saying about us:

Cynde S. from Los Angeles, CA (Source: Yelp)


I’ve been going to Dr. Lee for several years now.  I live in West Los Angeles.  It takes me 45 minutes to drive to his office.  You think why drive so far.  I believe Dr. Lee to be an awesome dentist.  His work is top notch.  His implants are excellent.  I have 3.  His crowns are beautiful. Why do I drive so far ?  Dr. Lee’s pricing is 1/3 and often 1/2 of what I have paid in West LA. The reason why I drive the distance. You cannot go wrong with any procedure he does. His office is bright and cheerful.  His staff is wonderful.

Anne J. from Hacienda Heights, CA (Source: Yelp)


Dr.Lee and his staff are the absolute best!(from my experiences)I used to be very nervous when I had people working on my teeth but after visiting this place that totally went away!The staff is welcoming and polite and they are very gentle when working on your teeth.They always make sure you’re comfortable and that you have the best experience possible.The wait time is also very short since when I get there they are already ready to take me in and start working.They also give you all the different options for your teeth, making sure to help you find the option that works best for you.So as said before this place is the absolute best!!

Sam W. from Rowland Heights, CA (Source: Yelp)


A referral from our neighborhood Facebook group. Dr Lee was thorough, quick and efficient. In and out in 30 mins! Love to support local business owners!

Johnathan R. from Hacienda Heights, CA (Source: Yelp)


Best dentist around ! Don’t even know we’re to start I been looking for a reasonable dentist and I finally found the one. Dr.Lee knows what he’s doing he is very friendly and his staff are out standing and very friendly! Highly Recommend this place !!! 🙂

Eric L. from Chino Hills, CA (Source: Yelp)


Dr Lee is a great dentist, my family and I have been going to him for years. He’s not only knowledgeable but  trustworthy. He doesn’t try to squeeze every last dime out of your wallet. The nurses are professional and make sure you’re comfortable. Thanks Dr Lee and staff!

Greg D. from Hacienda Heights, CA (Source: Yelp)


I highly recommend Dr. Lee.  I had not been to a dentist for years and I was very skeptical about dentist.  However, after meeting Dr. Lee for an evaluation and having treatment done, I now can say he is a great dentist a man I can trust.  I have had a deep cleaning, two permanent implants, and I now make it a point to see him every 6 months for a cleaning and checkup!

E. K. from Fullerton, CA (Source: Yelp)


I have been going to Dr. Lee for years and would highly recommend him! Dr. Lee has always been honest about his assessments and whether or not the work I need requires immediate attention or can wait until the next visit. He’s very thorough with his work and really takes the time to explain any questions you may have. His assistants and front office staff are also very professional and friendly, making the overall visit as positive as it can be!

David B. from West Covina, CA (Source: Yelp)


Dr. Lee is a fantastic dentist. His staff is very professional and courteous. They all strive to make every visit the best possible experience. Our needs are always met because of their attention to detail and personalized service. My family really appreciates Dr. Lee and his staff and highly recommend them!

Sornthong S. from San Dimas, CA (Source: Yelp)


I have been see Dr. Lee for almost three years. I’m not hesitating to say he is the best dentist. Dr. Lee is very knowledgeable and skillful dentist. I’m very happy with all the work done by him from filling,root canal,crown and implant. The office is very clean all his staff are very friendly always make you feel welcome. They always can schedule you in when the urgent come up. I’m usually don’t have to wait too long.

Eva Marie D. from Hacienda Heights, CA (Source: Yelp)


Update: I am so glad to have Dr. Lee as my dentist! He is very professional and caring and his staff are always so warm and welcoming!  Last week I had my tooth removed and the beginning process of my first tooth implant. I was so nervous prior to the procedure but during the entire process Dr. Lee kept checking in on me and kept me up to date on what he was doing.  I am so excited to have my new implant completed I can’t wait!  P.S. my husband had two implants put in and he is very happy with his results! If you need implants we highly recommend you seeing Dr. Lee! have been a patient of Dr. Johnathon M. Lee for seven years and I have been very satisfied with the treatment he has given me. He is honest and I trust him. His staff is outstanding, especially his hygienist. They are very efficient in scheduling appointments, and in revising them, if it is necessary. I highly recommend Dr. Lee to anyone who is looking for an honest opinion and excellent work! Eva Delgado.

Emily L. from Hacienda Heights, CA (Source: Yelp)


Excellent Staff with Excellent Doctor! I’ve been to so many dental office for the past years.  Every doctor told me to retract my wisdom tooth but I never did because I’m afraid of the pain. I decided to give Dr Lee a try and SURPRISINGLY, I don’t feel a pain! He gave his honest and best advise to me. So far by now, this is the only office I’ve been to with the latest technology and equipment. He is the best in the area!  Thank you Doctor!

Susan G. from Monrovia, CA (Source: Yelp)


Dr lee is proficient, knowledgeable and does all his own work. His office is clean and he has all the most up to date equipment. I recommend dr lee highly.

Maria K. from Irvine, CA (Source: Yelp)


Dr. Lee has been our family dentist for the past 10 years! We are always greeted with bright smiles and warm welcome back by the staff! I personally do not like dentists, but Dr. Lee and his staff make me feel comfortable and they always try to minimize any discomfort while on the dreadful dentist chair. If you are looking for a dentist and staff who offer great customer service and dentistry work pay them a visit. Highly recommend to anybody looking for a dentist!!

Gina V. from La Puente, CA (Source: Yelp)


If your looking for an amazing dentist with a fabulous staff in the Hacienda Heights area, Dr. Johnathon Lee is highly recommend. He is such a genuinely nice and caring person and truly takes pride in dentistry. He always makes sure his work is exemplary and fully explained and thats not all. He has great working hours and reasonable prices. I found my forever home!

Mimi Q. from Hacienda Heights, CA (Source: Yelp)


Dr. Jonathan Lee is one of the best dentists you can ever experience. He has been someone I have gone to for years and recommend to friends and family. He has a gentle touch and is conscious to your needs. I can’t recommend him enough.

Michelle P. from Orange, CA (Source: Yelp)


I’ve been with Dr. Lee for a little over 5 years now. He’s extremely detail oriented, hard working and caring. His whole staff (Nica, Falisha and Heidi) have a friendly demeanor and are all team oriented. I believe this is because Dr. Lee is such a great boss! Dr. Lee cares about your comfort, dental hygiene and overall experience every visit. He cares for and provides time to every patient who comes in, and uses the latest state of the art equipment. He also makes sure to answer any questions you have and will work with you and your insurance should you be thinking about any procedure – whether it be braces, crowns etc. He makes sure to go over costs, and is very fair in his pricing. If you don’t have insurance, he does take cash payments as well and won’t try to up-sell you on anything. He’s the most fair, honest and caring dentist I’ve ever encountered –  which is so hard to find, because many dentists will just up-sell you and try to bill your insurance like crazy. Dr. Lee also has excellent availability. He has offices in both the Hacienda Heights and Fullerton areas and even has availability some evenings and Sundays! If you are looking for a dentist who will care for your smile, provide you with great service and will make you feel comfortable and at ease – give Dr. Lee a try!

Renee B. from Hacienda Heights, CA (Source: Yelp)


Our family has been seeing Dr. Lee since my children were small. They are now adults. He is very compassionate and the quality of his work is very good. He always has a clean office and nice peaceful environment. He is also very friendly and so is the staff. Good Job!

Nica T. from Anaheim, CA (Source: Yelp)


I am very grateful to know Dr. Lee and am happy to call him my dentist 🙂 ! It’s been almost a year this May that I’ve been coming to his practice, there are plenty of things that I appreciate and really value from my experiences here, and the main thing that is most important to me is this: He is all about making sure I am well informed of any procedure and that I know my options. It’s not often that I find myself feeling like I have control at the doctor’s office because in my experience, doctors have just told me what to do. But Dr. Lee is different, he’s very caring, he speaks to me like an equal, he will always ask if I understand what he is explaining and he’ll elaborate if I ever have questions. What’s even more comforting is that you can see his standard of excellence reflected amongust his staff, they are also very caring and intuitive to my needs. I highly recommend Dr. Lee to my friends and family, you will not regret visiting his exceptional practice 🙂

Justa H. (Source: Google)


I’ve been a dedicated patient for 15+ years and I don’t know why it took me this long to write this review. Dr. Lee is truly a man dedicated to orthodontics and I won’t recommend anybody else more fit than this man himself.❤️ parents out there please hear me out!

Christine L. from Chino Hills, CA (Source: Yelp)


My family and I have been going to Dr. Lee for yearly cleanings for over 10 years. We now live more than 30 minutes away but we don’t even think about switching to a new dentist because Dr Lee really is the best. Honestly I hate going to the dentist, I have a very low pain tolerance and too many fillings from my teenage years. Dr. Lee makes each visit as comfortable and pleasant as possible. Some dentists forget that their patient is an actual human being capable of feeling pain but Dr. Lee is very responsive to his patients’ needs. He’s constantly checking if you’re okay and not suffering in silence. Overall a kind and trustworthy dentist, would definitely recommend. Wait time is reasonable and nurses are friendly and efficient 🙂

Anson M. from Hacienda Heights, CA (Source: Yelp)


My feeling is that it doesn’t hurt much when Dr. Li cleansers my teeth, and it doesn’t hurt when he inject anesthetic for me. The process of filling my teeth is very fast and the color very match. looks like original, I recommend Dr. Li to take care of your teeth.

Kathy V. from Midway City, CA (Source: Yelp)


I haven’t had the best experience with dentists so after getting a recommen-dation from my bf to come here I decided make a visit. It’s located in a huge plaza so there’s plenty of parking and first impression upon walking in is that it was very clean and open. There’s plenty of seats to sit at and it was definitely different than the typical dentist office I’m used to it where it looks more like a house. The receptionist at the front was very friendly, helpful, and more than happy to assist with any questions about the forms. After filling out my forms I met with Dr Lee. What I appreciated was how thorough he was during the check up and how he took the time to explain what I needed to work on and how I could personally better my hygiene. You can honestly tell he’s passionate about his work which is not always the feel you get with many other dentists. During my cleaning, he often asked if I was okay and explained what he was doing. The office also has this cool machine they use for x-rays so if you hate biting onto those plastic things in all those angles like me, you’ll definitely love it since you just stand there. Overall, everything was great the first visit so I am definitely making the drive from OC to switch over to Dr. Lee.

Huichen L. from Diamond Bar, CA (Source: Yelp)


Dr. Lee is a fantastic dentist, over the many years my family and I have been going to him, he has made my teeth look excellent. His work is detailed, efficient, and most importantly painless. I always highly recommend him to friends and family.  With Dr. Lee I know my teeth are in good hands.

Jennifer L. from San Francisco, CA (Source: Yelp)


My husband and I have been going to Dr. Lee (after a referral from a friend) for many years now and although we have moved to San Francisco, Dr. Lee is still our main dentist…with no any plans to look for a new one 🙂  Dr. Lee is very nice and has a calm and patient demeanor that eases any nerves when visiting a dentist.  And a added bonus – his staff is super sweet and nice….something very rare to come by nowadays.  I don’t know his exact schedule but I believe he splits his time with a different location so make sure to call and schedule an appointment.

Rebekkah V. from Seal Beach, CA (Source: Yelp)


Integrity, kindness, thoroughness… This is what Dr. Lee cares about.  My daughter and I have been coming to Dr. Lee for over 10 years.  He gave us such excellent service I referred my grandmother, mom, sister and her family, as well as co-workers and they have all loved him as well.  I have very sensitive teeth and he takes great care to be gentle.  He is very honest and does not recommend work that is not necessary.  He truly cares about his patients.  He is so kind to my grandmother.  She is 90 years old and still has a full set of teeth and partly that is due to the excellent care Dr. Lee has given her.  He is proactive in his dental care.  And truly cares about his patients individual needs.  He is a good person and a great dentist.  I highly recommend him.

Yance Y. from Hacienda Heights, CA (Source: Yelp)


I decided to wear braces 2 years ago and just went on yelp to find an orthodontists near where I live and I am glad that I found Dr. Lee. In my first free consultation, Dr. Lee suggested to extract 4 wisdom teeth and other 4 teeth. I was so nervous if I could handle that “much”. I eventually removed them all and it went well. I didn’t feel discomfort. My braces recently got removed and I am so happy with the result. The price is very reasonable as well. Dr. Lee is very knowledgeable, professional and patience. I would recommend Dr. Lee to all my friends.

Amorette V. from Seal Beach, CA (Source: Yelp)


My whole family have been going to Dr. Lee for years now. We all live about 30 or more minutes away but we love him so much we make the drive. The whole staff from the nurses to the front desk staff is nothing but pleasant and friendly. The facilities are always very clean and welcoming. Dr. Lee is so friendly and thorough, but also very patient. I hate getting dental work done and if he sees any minor signs of distress, he’ll stop for a break. He really is the best dentist I’ve ever had.

Cami E. from Hacienda Heights, CA (Source: Yelp)


I am in my 60’s and needed to get braces. I chose Dr. Johnathon Lee in Hacienda Heights as he really helped my husband out with a tooth problem on a Sunday as a first time patient. Dr Lee has been so patient and caring with me during this process of straightening my teeth.  He makes sure you are comfortable and he keeps talking to you during any dental procedure.  I highly recommend Dentist Johnathon Lee for all your dental or orthodontic needs. He has a great professional staff and Cassandra at the front desk has been SO helpful.

Xiaomin L. from Irvine, CA (Source: Yelp)


I have known Dr. Lee for almost ten years. He did great cosmetic work on my upper front teeth when he was at USC dental school. I remember once the professor at dental school commented that he has great hands. I have been his patient ever since.  He is honest, patient and a good listener with a caring heart. The most important of all, he is a perfectionist, which is good for patient! Some of my friends also became his patients and so far I haven’t heard any complaints!

Echo H. from Hacienda Heights, CA (Source: Yelp)


Dr. Lee has been our family dentist for almost 10 years, and there is a reason for it. He is caring, attentive, and very professional.  Unlike many other dentists who push you for overtreatment, Dr. Lee has the highest standard of ethics – he is very considerate and think in our best interest. He treats his patients like friends & family and is willing to go extra mile to help. Recently, my husband had a dental emergency. We called the office trying to walk in but found out Dr. Lee was off that day. His staff called him right way and he came back from the golf course to treat my husband.  In addition, his office staff is very friendly and helpful. The facility is well organized and very clean. I strongly recommend Dr. Lee!

Richard T. from Los Angeles, CA (Source: Yelp)


I just had my first visit to Dr. Lee’s office. I have always dreaded dental exams and procedures. The visit could not have been any better. Dr. Lee and his staff were very professional. They made sure I was comfortable throughout the visit. He found a small cavity and I will return for the filling soon. I also has a consultation for an implant. Dr. Lee assured me it will be a pain free procedure. This office is the best!

Justa H. from Pomona, CA (Source: Yelp)


I’ve been a dedicated patient for 15+ years and I don’t know why it took me this long to write this review. Dr. Lee is truly a man dedicated to orthodontics and I won’t recommend anybody else more fit than this man himself.Parents out there please hear me out.

Mama D. from Hacienda Heights, CA (Source: Yelp)


Both my kids are patients of Dr. Lee, they have been coming to this office for nearly 2 years.  Dr. Lee is very gentle and kind, always praises them on their oral hygiene and gives them tips to improve.  During their cleaning he is very thorough and meticulous.  His dental assistants and front office staff are also very sweet.  I love that all the xrays are viewed on large screens he shows you previous xrays to compare changes.  Thank you Dr. Lee, for being an exceptional and honest dentist!

Huyen H. from Santa Ana, CA (Source: Yelp)


I was always afraid of going to a dentist considering I had bad experiences in the past. When I was told by my sister in-law that he was a great dentist, I decided I would go in. The front office staff is super friendly, and the office itself is modern, clean, and very welcoming. Dr. Lee is honest, caring, gentle, and genuine are just some of the first words that come to mind when I describe my experiences with him. He was extremely thorough, explained everything in great details, even took pictures of my teeth to show me exactly what needs to be done, where, and why.  The hygienist was very gentle but paid lots of attention to details. Just an overall fantastic experience every time!  THANK YOU DR. LEE!!!

Tony G. from Hacienda Heights, CA (Source: Yelp)


Dr. Lee is great! He takes his time to explain everything so you know exactly what to expect. I love that he constantly checks to make sure you remain comfortable throughout the process. The staff is super friendly and really take pride in delivering great service.


At Haha Dental we provide quality service, we care about you, and we strive for excellence. We take great satisfaction in helping you maintain optimal oral health. Our practice is devoted to comprehensive and preventive patient care. We believe our patients should have as much information as possible in order to make important, informed decisions regarding their oral health and treatment options. Graduated from UCLA school of dentistry in 2003, I have earned Restorative Award, the best of best prosthodontics award, and academy award of operative dentistry. I love to play badminton and golf in my free time. I am also member of ADA, CDA, IAOI, and AAID.I also actively involved in a few implant and orthodontic study clubs. After graduating from UCLA school of dentistry, I spent another year at USC for advanced dental training. I then started my private practice with Dr. Jimmy Shern at the same location for 11 years now. For the past 11 years, our practice has only continued to grow. I believe this growth is due not only to quality care, but that we constantly update the office with new technology as well as considerable upgrades to our equipment. For example, we are the very first digitalized office in our area. This immediately made us stand out from the other offices. Our patients appreciate what we represent: Honest, ethical work with the utmost attention to their individual needs. They come in to a clean, fully-equipped, and modernized office and are met with the deliverance of professional, compassionate care. We have, and always will continue to strive for excellency in our practice.