Dr. Sun Dental Clinic
Call now
Call now
Website
Call
Dr. Sun Dental Clinic
Our team at San Marin Dental Care consists of only the top experts in the dental industry of CA. As a dentist Novato, we pride ourselves on treating each patient with personalized services and unparalleled treatment. Your smile is one of the most powerful first impressions of your appearance. With San Marin Dental Care's new aesthetic dental treatments, a gorgeous smile is now obtainable!

In Novato, we strive to provide you with the best dental service in CA. Let us create the smile of your dreams! Call (415) 209-6060 to schedule an appointment. To keep your teeth and gums healthy, every dentist will tell you that you need to maintain your oral hygiene daily. We want to help you prevent potential issues before they even start to develop.
Services
Dr. Costigan has achieved one of dentistry's most prestigious career goals - by becoming a Master in the Academy of General Dentistry, Dr. Costigan has demonstrated exceptional and caring capabilities, thereby guaranteeing the highest level of dedication and commitment to providing you and your family with the most up-to-date treatment options and superior patient care.
As your premiere Novato dental office, we take pride in providing you with information to allow you to make informed decisions regarding your oral health care. At San Marin Dental Care we offer a range of services to treat your dental needs. If there is a procedure or service you do not see listed give us a call at (415) 209-6060 to see if we can accommodate your needs.
We hope this letter finds you and your family in good health and spirits. The past few months have been challenging for all of us. I know we are all looking forward to resuming our normal activities and routines. While many things have changed, one thing that has remained is our commitment to your safety.
With years of experience serving the families in Petaluma, San Rafael, Sonoma, and the surrounding areas of Novato, San Marin Dental Care can provide you and your family with the high-quality dental treatment you need. Whether you're considering a cleaning or major cosmetic procedures, we can help you discover which treatment is right for you.
Conscious sedation helps reduce anxiety, discomfort, and pain during certain procedures. This is accomplished with medications and (sometimes) local anesthesia to induce relaxation. Conscious sedation is commonly used in dentistry for people who feel anxious or panicked during complex procedures like fillings, root canals, or routine cleanings.
Reviews (21)
Daisy M.
Daisy M.
Feb 18, 2021
Report
I have been going to Dr. Costigan for over 15 years. The staff are always friendly and the office spotless. Dr. Costigan recently replaced my 4 front teeth with 1 implant and 3 crowns. I am overjoyed with the outcome. Dr. Costigan is not only skilled and meticulous but very gentle. I highly recommend this business!
Crowder T.
Crowder T.
Nov 25, 2020
Report
Doctor Sun is so good at what she does, she is quick and very thorough! Definitely one of the best dentists I've ever had work on me. And her office secretary's are so ice! Highly recommend!
Joi N.
Joi N.
Nov 24, 2020
Report
At the end of my appointment I was virtually attacked by the dentist who went off and how she hated illegal immigrants and the fact that they are going to be taking money from America requesting healthcare it was out of nowhere and when pressed she became more and more racist I cannot support a business that feels this way
Kati S.
Kati S.
Sep 29, 2020
Report
They are my lifetime dentist! I absolutely positively 100% trust them AND REALLY ENJOY COMING! I have to get my teeth cleaned every 3 months for now and I have had a lot of dental work overseas. I found this gem San Marin Dental after I got back an needed a crown on my tooth. I have been going every couple of months now. They are always SO nice and accommodating! Dr. Costigan has become sort of a mentor now at this point! She pointed me in the right direction for dental insurance and braces recommendations. Denise is my FAVORITE HYGENSIST ever! I love coming to get my teeth cleaned which I never
Benjamin B.
Benjamin B.
Dec 27, 2019
Report
I love Dr. Costigan and her entire staff. I'm sad to say that due to insurance reasons I will have to find a new DDS.
Dr Costigan has always been understanding and compassionate with regards to budgetary concerns, working with patients to utilize insurance most efficiently. She is honest and realistic in her assessments of which treatments are necessary and which can be put off or avoided with proper home-care.
Camille is the single greatest Hygienist I've encountered. The new hygienist is great, and I found her every bit as gentle and effective as her counterpart, but Camille has an
Camille Albert
Camille Albert
Jul 11, 2019
Report
The people are nice and patient and is very easy for people who can’t drive. Marin Transit is very convenient. I was late and they were patient.
Carmen G.
Carmen G.
Mar 08, 2019
Report
I highly recommend Dr. Sun and her team! It's been my best dentist experience ever! Dr. Sun is no doubt highly competent and guided me gently through all the steps of getting a crown. Everyone is super friendly and helpful. And it didn't hurt at all!! I'm grateful to have found San Marin Dental.
Sue Zipp
Sue Zipp
Jan 21, 2019
Report
Top Notch! Professional and compassionate to each and every patient with thorough, personal care! Highly recommended!
Web T.
Web T.
Jan 20, 2019
Report
Over the past twelve years, I have utilized Dr Costigan's expertise for general maintenance, restorative and cosmetic dentistry. I've had extensive crown work, and most recently a bridge replacement and an implant involving gum surgery. All procedures were pain free and I was quite comfortable throughout. I'm very pleased with the results. She is passionate about her work and very attentive to detail. Her staff is very friendly and highly competent. I strongly recommend San Marin Dental.
Lena J.
Lena J.
Nov 28, 2018
Report
I would not recommend this dental practice. They don't seem to know what they are doing.
Alicia L.
Alicia L.
Oct 05, 2018
Report
Great experience with the new patient special. Dr. Costigan is professional and helpful. I had been to a dentist in the past that tried to tell me I had a bunch of soft spots in my teeth and should have them all filled. That scared me so I tried Dr. Costigan. She told me my teeth are fine and no cavities. Had I listened to the other doctor, my perfectly good teeth would have been unnecessarily drilled. Because I find her conservative, if I did have a cavity I would not hesitate in letting her treat it. The staff is very friendly and helpful too.
Meg C.
Meg C.
Oct 02, 2018
Report
Great service and attention be Dr. Costigan and her entire staff! The office is nicely laid out and my daughter and I received a thorough exam and cleanings. I would highly recommend Dr. Costigan to families and those who want a warm and friendly atmosphere. Dr. Costigan is a highly regarded dentist in our community and among her peers.
Thank you San Marin Dental!
Benjamin W.
Benjamin W.
Aug 23, 2018
Report
I had a great visit at Dr Costigan's San Marin Dental Care this morning at 9am - I was 6 years over due for a cleaning, X-rays and a dental exam so I bravely trusted Sun Costigan and her talented staff to treat me with kindness and professionalism. I was amazed with the results and positive experience at SMDC in Novato. The staff is so friendly Michelle and Sandra are absolutely fantastic and Dr Sun really knows Dentistry inside and out. I was married to an RDA, hygieneist who is now a Dental Office Manager for a dental firm in the Gold Country and I know a lot about general dentistry, gum
Mark Stearman
Mark Stearman
Jul 20, 2018
Report
High standard of care! Lynette gave my teeth a thorough cleaning and they feel great. As usual, Dr. Costigan and staff provide a welcoming and professional environment.
Johann D.
Johann D.
Mar 15, 2018
Report
I had my first appointment at Dr. Sun's office today, for a comprehensive teeth-cleaning and a full mouth X-ray! Secret!...I had not done that for a while and like so many patients, I was apprehensive of a new dental office in general but was also wondering what kind of experience I would have in the dental chair. Also, I came without sedating myself prior to the visit, where in the past just a small amount of libation was in order.
Well....what a pleasant surprise! My visit went very smoothly and it actually was great fun! Everyone was quite cheerful, happy, positive and I knew immediately
David G.
David G.
Jan 03, 2018
Report
Lost two teeth and Dr. Sun, personally, made me well-fitting and comfortable temporary teeth so I could attend all our meaningful celebrations. The temporary teeth mirrored my natural teeth, did not have to be glued in place and were easy to clean. Before this was done, I had totally isolated myself from family & friends because of embarrassment. After having a wonderful holiday, today, I received my permanent teeth and they look and fit perfectly. This was a tough group of front teeth (eye tooth included) and I'm grateful for the great services.

Chris G.
Fully O.
Fully O.
Nov 28, 2017
Report
I'm super duper pleased with my experience at this dental office. One of my Veneers fell off last night when I was flossing. I called in the morning and they got me seen by noon. Twenty mins later I was fixed and in my car driving home. Stellar customer service and nice bedside manor.
Marilyn K.
Marilyn K.
May 20, 2016
Report
A visit to Dr Costigan's dental appointments always ensures me that I will be well cared for by a team of friendly, competent and outstanding staff members.
Dr Costigan emphasizes preventative measures for healthy teeth and gums and is sensitive to my dental needs and treatment. Thank you so much
Vong V.
Vong V.
May 20, 2016
Report
I have to say that Dr. Sun and her team are very nice except the " billing lady". Dr. Sun is very sweet and gentle.

The reason I gave 1 star is only for the billing lady. She is unprofessional. I had so much trouble with the billings there. The way she talked to me on phone about the disputed outstanding balance was like a debt collector, so unprofessional. She screwed up the billings. I had wanted to talk to Dr. Sun directly and she kept telling me Dr. Sun was not available to talk. I had to write a long detailed letter explaining what happened with the backup I got from the insurance
Amy O.
Amy O.
Dec 11, 2014
Report
Who likes to go to the dentist? I know, I know...no one, right? But I always learn so much about my teeth here - the hygienists give me a thorough description of what's going on in my mouth each time I come, and I walk out (always on time, BTW) feeling refreshed. They offer the latest technology in sedation if you're a nervous type (which I'n not, but good to know) and digital X-rays are much more pleasant than the old school films. And I know it's silly, but I love that their Sirius radio is always tuned to 70s tunes...

Everyone has to go to the dentist, and Dr. Costigan and
Linda M.
Linda M.
May 24, 2013
Report
Dr. Costigan and her staff are awesome people!!! My husband and I were her patients until we moved back down to Southern California. Everyone at the office are friendly, helpful, and up front when it comes to what needs to be done and how billing works and what would be billed to you and what would be billed to the insurance.

The procedures were painless except for a pinch here and there when they injected the numbing medicine, but overall, they made us feel relaxed and comfortable. We would definitely come back to Dr. Costigan if we are ever in the North Bay again.