Costa Mesa Family Dentist-Proudly Serving Newport Beach and the Surrounding Areas

Here at the dental office of Dr. Katherine Harrell we know that an important part of how you feel is your smile. That's why she and her dental team is committed to providing you with the best quality dental care for all of your cosmetic dental needs. 

Dr. Katherine Harrell at her Costa Mesa, CA dental office can create the smile you deserve using today's latest dental technology. Dr. Harrell also provides an array of unique dental procedures to best fit your dental needs. Our friendly Costa Mesa dental staff is here to ensure that your experience with us is comfortable and fits all your needs. If you are looking for a dentist in the Costa Mesa or Newport Beach, CA area give our office a call at (949)-548-1262. 

Look around our site to learn about Dr. Katherine Harrell and her Costa Mesa, CA dental office. The first step toward getting the smile you deserve is giving our office a call at (949)-548-1262 we look forward to hearing from you!



  • Stacy T.
    I was recommended by a coworker to go to Dr. Armstrong after I had a bad experience with another Dentist! Dr. Armstrong is awesome, he's super nice and friendly and he's very honest. He's not trying to sell you cosmetic products! His staff is also very nice and friendly.

    My boyfriend also had a horrible dentist in Newport and while we were eating one night his molar cracked, we didn't know what to do so we called Dr Armstrong's office number and it directed us to call his house. He was able to tell Jeff what to do and was able to get him in the next day to look over the tooth. Come to find out he needed a crown, Dr A was able to do all the work for him at a much cheaper rate then the other Newport dentist had offered to him months before. Now he switched over to Dr Armstrong and we're both happy customers.

    I would recommend him to anyone!
  • Jenna S.
    Three generations of our family are regulars at Dr. Armstrong's office. His office is professional and personable at the same time. We've had dental emergencies and they were able to get us in last minute without overcharging. The office never tries to sell us unnecessary treatments. Dr. Armstrong and his staff are kind and keep meticulous records. I hope he never retires because I'll need him for the next 60 years.
  • Susan C.
    After avoiding dental work for seven years, I couldn't stand being in pain any longer. Turned out I had six cavities! The friendly staff was quick to get me in the office. Dr. Armstrong is very nice and made sure I was comfortable while getting those bad-boys filled. I felt NO PAIN! I have been a loyal patient ever since (almost 5 years). Lorna is my favorite hygienist, but I've heard raves about all of them! Dr. Armstrong has always been honest and never tried to up sale me on any treatments. For the quality of work they do the prices are great! My family trusts Dr. Armstrong and I recommend him to anyone looking for a dentist.

Office News

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    Office Closed July 3 and July 4
    Our office willl be closed on July 3 and July 4 for the Independence Day holiday. We will be back to our normal operating hours on Thursday July 5th.
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    Monthly Promotions!
    We want to introduce a new fun way for us to give back to our patients! Each month we will be having some kind of fun promotion or giveaway. You can seen what we will be offering this month (and past months) under our "Special Offer"...
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    Office Closed During Holidays
    Hi All! We just wanted to let you know that our office will be closed during the holidays. We are going to be closed Friday December 22 to Tuesday January 2. We will be resuming our normal office hours Wednesday January 3.   As always...

Our Team

The first thing you'll notice when you walk into our Costa Mesa family dental practice is the incredibly friendly and inviting atmosphere. Members of our staff have been hand-picked to provide you the best possible experience during your visit to Dr. Katherine Harrell. Learn more about our Costa Mesa team below!

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    Bobbi Ferraro, RDH

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    Dee Nimmo, RDA

Appointment request

Need an appointment with a dentist in Costa Mesa ? Requesting an appointment at our Costa Mesa, CA family and cosmetic dental office is now easier than ever. Fill out the form below and we'll contact you to find a time that fits your schedule. Start your journey towards a beautiful smile with us today!
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Contact Us

Have a question or comment? Fill out the Contact Us form and we will be in a touch as soon as possible.

Katherine Harrell, DDS
181 East 18th Street
Suite A
Costa Mesa CA 92627
Phone: (949)-548-1262
Email Address