Gary L. Seid, D.D.S
General Dentist

Appointments: (408) 991-9033

Sunnyvale, CA, Cosmetic Dentist
Sunnyvale - Cupertino - Santa Clara - San Jose - Palo Alto

Practice Photo

Porcelain Veneers

Gum Disease Treatment

Restorative Dentistry

Wedding Day Special

Dental Implant Crowns


Free Smile Analysis

Aesthetic Dentistry

Share |

Meet the Doctor

Dr. Gary L. Seid

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. Our team at Gary L Seid DDS and I will give you a warm welcome and our ongoing commitment to your dental health.

Dr. Seid has trained with some of the world's most prominent Cosmetic Dental Specialists. He is a graduate of the Northern California Institute of Cosmetic Dentistry and the Las Vegas Institute for Advanced Dental Studies and of the Institute For Advanced TMJ Studies. He is a Perio ProtectTM licensed dentist.

Credentials and Memberships

  • American Dental Association
  • Academy of General Dentistry
  • American Academy of Cosmetic Dentistry
  • Dental Organization for Conscious Sedation
  • International Association for Orthodontics
  • Santa Clara Dental Society
  • California Dental Association
  • Academy of Craniofacial Pain
  • Academy of Laser Dentistry
  • LVI Preferred Dentist

Appointment Phone:

(408) 991-9033

Our practice accepts insurance from the following companies.



Aetna is a national leader of health and related benefits offering dental insurance to our Sunnyvale patients, as well as health insurance, pharmacy, and life insurance products for individuals, medicare insurance and disability.

Delta Dental

Delta Dental

Delta Dental Plans Association is a not-for-profit organization with some for-profit affiliates as member companies. Through its 39 independent member companies, it offers national dental coverage to our Sunnyvale dental patients - administering programs and reporting systems that provide employees and individuals with quality, cost-effective dental benefits and superior customer service.



CIGNA offers a variety of dental plans and dental insurance to our Sunnyvale area patients, including CIGNA Dental Care (DHMO), CIGNA Dental PPO or CIGNA Traditional.

Ameritas Dental

Ameritas Dental

At Ameritas Group, we put our customers first. And second. And third. Always. That's why we're able to provide over 4.8 million people with quality dental, vision and hearing care plans that fit their specific needs. And why we're ready and able to provide millions more with the same impeccable service.


Safeguard Dental

Safeguard Dental



Youthful looking dentures

If you have older dentures or think you may need dentures, you're in luck. As people age, dentures can make them look older than they really are and can cause discomfort when chewing. Sunnyvale area dentures dentist Dr. Gary Seid can replace worn out dentures with top quality custom made, state-of-the-art dentures that blend with your skin, hair and even eye color. Your new dentures will look as natural as possible, and you'll look and feel younger, too.

NTI-tss plus to relieve migraines

Gary L. Seid, D.D.S is a trusted Sunnyvale area NTI-tss plus provider. Our highly-trained team fit you with a custom bite guard designed to relieve headaches and migraines caused by jaw clenching during sleep.

Each person is unique. Our experienced team will provide you with the individualized care you deserve for your situation.

Most insurance carriers accepted

We accept most insurance carriers. Please check with us prior to your appointment, but it's safe to say we likely accept the type of insurance you carry.

Sunnyvale area dentist Dr. Gary Seid and his knowledgeable staff can help answer any of your insurance questions. At Gary L. Seid, D.D.S we aim to maximize your insurance benefits and make any remaining balance easily affordable.

Damon® cosmetic braces for an awesome new smile

Did you know that cosmetic braces from trusted Sunnyvale area braces dentist Gary Seid, D.D.S. can deliver stunning results beyond straighter teeth? He can evaluate you for Damon™ clear braces. They're designed to subtly change the shape of your face while fixing crooked teeth, bite problems and teeth with gaps.

The doctor will gladly answer all of you questions about this cutting-edge orthodontic approach. You can set up an appointment at your convenience to discuss creating your gorgeous new smile.

Thorough checkups

In order to maintain your oral health, it's important to schedule regular dental check-ups. Don't wait until something is wrong to make an appointment with Sunnyvale area dentist Dr. Gary Seid. At Gary L. Seid, D.D.S, we provide comfortable and thorough checkups. By catching and correcting a potential dental problem early, Dr. Seid can save you vast amounts of time, discomfort, and expense.

Call for an Appointment!

(408) 991-9033

Gary L. Seid, D.D.S
1257 Oakmead Parkway, Suite A
Sunnyvale, CA 94085
General Info: (408) 991-9033
VISA MasterCard

Appointments: (408) 991-9033

  Morning Afternoon
Mon. 9am - 12pm 12pm - 6pm
Tue. 9am - 12pm 12pm - 6pm
Wed. 9am - 12pm 12pm - 6pm
Thu. 9am - 12pm 12pm - 6pm
Fri. Closed Closed
Sat. 9am - 12pm 12pm - 3pm
Sun. Closed Closed

Appointment Phone:

(408) 991-9033

How to Find Us

Dr. Seid's office is conveniently located at 1257 Oakmead Parkway, Suite A in Sunnyvale, one block from Lawrence Expressway.

Primary Office Holidays

This office is closed on the following holidays: New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, Christmas Day.

Sunnyvale Cosmetic Dentistry for a Bright New Smile!

A bright, new confident smile can be one of your best assets. At Gary L. Seid, D.D.S we offer a wide range of affordable dental makeover options and want to work with you to create the beautiful smile you've always wanted. If you're unhappy with your missing, damaged, stained or broken teeth, we have lots of experience with affordable, high-quality porcelain dental veneers, tooth-colored composite fillings, natural-looking porcelain dental crowns and bridges, tooth whitening and tooth bonding.

Many of our Sunnyvale cosmetic dentistry patients are pleased to learn that the care they deserve may not be as expensive or time-consuming as they imagined. We're happy to schedule appointments at a time that's convenient for you and we have a range of affordable payment options available to fit your budget.

Why wait another moment? It's time to invest in the gorgeous, healthy smile of your dreams. Call us at (408) 991-9033 now or complete our simple online form to schedule a consultation with cosmetic dentist Dr. Gary Seid.

Practice Services

  • Comfortable tooth cleaning for a brighter smile
  • Maximize your dental insurance benefits
  • Damon® cosmetic braces for an awesome new smile
  • Thorough checkups
  • Youthful looking dentures
  • Zoom!® teeth whitening for a bright smile
  • Britesmile® teeth whitening for a stunning smile
  • Dentures that look great and last
  • Most insurance carriers accepted
  • NTI-tss plus to relieve migraines
  • Lumineers® dental veneers
  • We specialize in second opinions
Internet Dental Alliance, Inc., is North America's leading dental office website company. For additional dental marketing ideas visit our blog.

Appointment Phone:

(408) 991-9033

Zoom tooth whitening PerioProtect