We've Moved! Come visit us at our new location:


17762 Beach Blvd Ste 210
Huntington Beach, CA 92647

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Quality Dental Care In Fountain Valley, CA

Your Search for a Dentist Stops at Our Fountain Valley Office Andrew G. Mortensen D.D.S. Welcomes You

Located at 18837 Brookhurst Street, Suite 109, the practice of Andrew G. Mortensen D.D.S. is in the heart of Fountain Valley. We are within easy reach for dental patients all over Orange County.

17762 Beach Blvd
Ste 210
Huntington Beach, CA 92647

Take a Look at Our Practice

Our practice is designed to welcome each patient that walks through our doors. From our front desk staff to our professional hygienists and dentist, our Fountain Valley office is here to offer you the best experience and quality of care. 
Fountain Valley dental office
Our Fountain Valley office welcomes you.

Learn More About Our Practice Request a Visit with Dr. Mortensen

Accredited by the American Academy of Cosmetic Dentistry, California Dental Association, and Orange County Dental Society, you can rest assured that Dr. Andrew G. Mortensen will help you achieve your goals with a personalized dental treatment plan.

We invite you to contact our Fountain Valley dental office today if you would like to learn more about the cosmetic and restorative dentistry care we offer:

Call Us: (714) 964-4183

Andrew G. Mortensen and a team member with a patient in the dentist's chair
Dr. Andrew G. Mortensen and his team provide excellent care.

5-Star Reviews From Fountain Valley-Area Patients


R jacobson


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Dr Mortensen is the best dentist I have ever had. If you have ever had any dentist phobia, they will do what ever they can to make your experience better.

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Bridgette Hall


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My dental health Fam is always on time with ALL my dental needs. Dr Mortensen welcomed me to the family back in 1987. I love the fact that my Fam is truthful, knowledgeable and sincere.

And, YASS…I have gave a beautiful smile!!

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Meet Dr. Andrew G. Mortensen

After graduating from Northwestern University's Dental School in 1979, Dr. Mortensen moved to the state of California to begin his general and cosmetic dentistry career path.

Even though his career as a dentist spans six decades, Dr. Mortensen still takes continuing education courses to stay on top of new and improving dental techniques and practices.

Dr. Mortensen is accredited by the American Academy of Cosmetic Dentistry, an honor bestowed on only a few hundred dentists in the United States. From his educational background to his awards and accolades, you can count on our dentist to handle all of your dental care needs.

Andrew G. Mortensen and award
Dr. Mortensen has trained at one of the top post-graduate programs in the United States, the Las Vegas Institute.

Memberships and Affiliations

AAD Accredited Member logo
ADA logo
ICOI logo
LVI Trained logo
Best Dentist Orange County (2010) logo
Opencare Patientsʼ Choice Winner (2015) logo
DOCS logo

Meet Our Staff

Dr. Mortensen and staff

Many of Dr. Mortensen's staff members have worked at our Fountain Valley office for over a decade, making them familiar faces to our patients. Meet the people who make our office a warm and welcoming environment:

Jackie Michel, Office Manager

  • Jackie is the first friendly face you'll see when you enter our dental practice. She can help check you in, schedule your next visit, and maximize your insurance plan's benefits.

Katie Ledesma, RDA

  • Erika has been a dental assistant since the early 2000s and has been an immense help to Dr. Mortensen since the early 2010s. Our patients love Katie's energetic and friendly personality. 

Erika Lieber, RDH

  • Erika has been a dental hygienist since the early 2000s and has been an integral part of Dr. Mortensen's staff since the early 2010s. With a gentle touch, Erika will make sure your teeth are squeaky clean. 

Ashley Davis, RDH

  • Ashley has worked as a dental hygienist since the early 2000s and has been a skilled member of Dr. Mortensen's staff since 2020. She's easy to talk to and provides care for your teeth using a gentle hand. 

Featured Services

Our most popular procedures include:

General Dentistry

Regular teeth cleanings are vital for maintaining healthy dental hygiene. Our dentistry office offers fillings, inlays and onlays, and TMJ treatment for our patients.

Learn More About General Dentistry

Restorative Dentistry

Dental health problems can be resolved through restorative dentistry procedures, such as dental bridges, dentures, root canal therapy, and full mouth reconstruction. 

Learn More About Restorative Dentistry

Cosmetic Dentistry

Our dentist can help minimize cosmetic imperfections of the teeth and gums through dental implants, dental bonding, veneers, periodontal reshaping, Invisalign®, and more.

Learn More About Cosmetic Dentistry

Porcelain Veneers

Veneers are thin porcelain shells that fit over the front surface of the tooth to conceal cosmetic concerns like chips, cracks, stains, and misalignment. 

Learn More About Veneers

Dental Implants

Dental implants are artificial tooth roots that support restorations such as crowns, dental bridges, and dentures to replace missing teeth. 

Learn More About Implants

Sedation Dentistry

Avoiding the dentist due to fear or anxiety? Our dentist offers sedation options to ensure your dental experience is as comfortable as possible. 

Learn More About Sedation Dentistry

Stunning Before and After Transformations

Dr. Mortensen can create a customized treatment plan to realize your dental transformation. Take a look at these dramatic results.
Before Full Mouth Reconstruction
Before Full Mouth Reconstruction
After Full Mouth Reconstruction
After Full Mouth Reconstruction

Get the Process Started

Plan for your visit to our dental practice by filling out our patient forms before your appointment.

Insurance and Financing At Our Fountain Valley Office


Our office manager, Jackie Michel, can help maximize your health insurance benefits and determine if our office accepts your provider. Insurance can cover various procedures, but cosmetic procedures are not covered by insurance.


If you don't have dental health insurance or are undergoing a cosmetic dentistry procedure that's not covered by health insurance, we accept financing through CareCredit® to help you break the cost of treatment into affordable monthly installments.

Another 5-Star Review

"Best dental professional and staff in OC. Been a patient for 12-13 years. Never had a bad experience. Highly recommended." Mike Dickson
Andrew G. Mortensen, DDS

Andrew G. Mortensen, DDS

Dr. Andrew Mortensen is a top-rated dentist with training from the world-famous Las Vegas Institute. His exceptional care and expertise have earned him hundreds of 5-star reviews, and he is an accredited member of the:

  • American Academy of Cosmetic Dentistry
  • American Dental Association
  • California Dental Association
  • Orange County Dental Society 

Ready to schedule a consultation at our Huntington Beach dental practice? Request an appointment online or call us at (714) 964-4183.

Contact Us Today

Reach out to us today to set up an appointment and strengthen your oral health.
"I am proud to have served patients in our community. Through continuing education and state-of-the-art equipment, we are able to offer you and your family the high level of care you're looking for." Andrew G. Mortensen, D.D.S.

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