MOST HELPFUL REVIEW
Dr. Casey and the staff always make me feel welcome and comfortable. I recommend Dr. Casey whenever I hear someone is looking for a dentist.
Diane E. Casey, DDS
877 West Fremont Avenue, Suite D3
Sunnyvale, CA 94087
Excellence in Patient Care
The Opencare Smile Guarantee
We only work with the top rated 10% of dentists. If your new Opencare dentist doesn't live up to your expectations, we'll cover your co-pay up to $100.
What you need to know
Preferences & Highlights
Accepting New Patients
4 new patients last 30 days
Reliable Responder
Goes above and beyond for new patients
Patient's Choice
Average rating over 4.8 stars
Services Offered
Bonding
Braces / Invisalign
Bridges / Dentures
Checkup & Cleaning
Crown / Cap
Filling
Gum Surgery
Implants
Nitrous Sedation
Root Canal
Sleep apnea
TMJ
Tooth Extraction
Urgent Issue
Veneers
Whitening
Wisdom Teeth Removal
Insurance & Payment
Bills your insurance directly
You will only pay for costs not covered by your plan
Financing Plans Available
This office offers flexible low-interest financing options to ensure all patients can get the dental care they need
Languages Spoken
English
Diane E. Casey, DDS
About
Have you been searching for a quality dentist? If so, you have located a dental practice that is health-oriented and passionate about dentistry. Choosing a good dentist is a huge decision. We here at the office of Diane Casey DDS are dedicated to helping you improve and maintain your beautiful smile. We are delighted to offer a vast selection of dental services. Here at our office in Sunnyvale, CA, we have a dynamic team excited about providing excellent dental care. Dr. Casey's small, personal office setting is geared towards all your dental needs. We take pride in our quality service and dedication to our patients.
FAQ
What makes your practice special when compared with others in the area?
Our dental team's mission is to partner with you achieve a great, healthy smile and keep it that way! A relaxed and personal atmosphere helps to minimize the stress of dental appointments
Office Hours
Practice Features
- Dental anxiety friendly
- Digital X-rays
- Financing plans
- Free parking
- Intra-oral cameras
- Kid friendly
Dr. Diane Elizabeth Casey
Dr. Diane Casey has more than 15 years of experience in multi-dimensional dental services. Dr. Casey is a long-time resident of Santa Clara Valley and was the president of Santa Clara County Dental Society in 2008. Dr. Casey is also a proud member American Dental Association, California Dental Association and American Academy of Cosmetic Dentistry which shows her dedication and passion in the field of dentistry.
Education & Certifications
EDUCATION
DDS
Creighton University School of Dentistry
CERTIFICATION
Dental Board of California
Jul 21, 1988
Customer reviews
Staff
4.6 out of 5 stars
4.6
Quality of Treatment
4.5 out of 5 stars
4.5
Equipment
4.5 out of 5 stars
4.5
- 32 5-star reviews
- 5 4-star reviews
- 0 3-star reviews
- 0 2-star reviews
- 0 1-star reviews
37 Detailed Reviews
All reviews are the subjective opinions of a patient and not of Opencare.- 5 out of 5 stars
Reviewed on
May 8, 2025
Reviewed May 8, 2025
Dr. Casey has the softest touch and will thoroughly walk you through the process of your dental procedure.
- 5 out of 5 stars
Reviewed on
March 29, 2025
Reviewed March 29, 2025
got good dentist, I recommend other people to go
- 5 out of 5 stars
Reviewed on
February 13, 2025
Reviewed February 13, 2025
Super friendly dentist and staff.
- 5 out of 5 stars
Reviewed on
November 6, 2024
Reviewed November 6, 2024
Very thorough and professional. Absolutely fantastic visit. She tells you where your teeth are in detail and provides tailored recommendations.
- 5 out of 5 stars
Reviewed on
January 6, 2024
Reviewed January 6, 2024
Great, professional service! Dr. Casey changed my dentist experience by considering my goals for my smile even though I was in for a routine cleaning. Recommendations and fun conversation were not something I expected during my visit.
- 5 out of 5 stars
Reviewed on
March 4, 2023
Reviewed March 4, 2023
Feel good response and easy procedure for oral cleaning.
- 5 out of 5 stars
Reviewed on
January 30, 2023
Reviewed January 30, 2023
Signing up was quick and the online instructions were simple. Finding a dentist in my area was easy. My dentist was friendly, patient, and knowledgeable.
- 5 out of 5 stars
Reviewed on
January 27, 2023
Reviewed January 27, 2023
Dr. Casey was fantastic. I have some dental issues to address, and she did not make me feel ashamed about my teeth at all. She also took time to explain my care options in detail. I recommend her highly.
- 5 out of 5 stars
Reviewed on
September 20, 2022
Reviewed September 20, 2022
Doctor did a great job on my cleaning. She explained the steps and care plan needed for me.
- 5 out of 5 stars
Reviewed on
August 10, 2022
Reviewed August 10, 2022
very experienced dentist, did a great cleaning and answered all questions with options
Customer Review Summary
Opencare
37 Verified Opencare Reviews
All reviews are the subjective opinions of a patient and not of Opencare.
- 32 5-star reviews
- 5 4-star reviews
- 0 3-star reviews
- 0 2-star reviews
- 0 1-star reviews
- 5 out of 5 stars
Reviewed on
May 8, 2025
Reviewed May 8, 2025
Dr. Casey has the softest touch and will thoroughly walk you through the process of your dental procedure.
- 5 out of 5 stars
Reviewed on
March 29, 2025
Reviewed March 29, 2025
got good dentist, I recommend other people to go
- 5 out of 5 stars
Reviewed on
February 13, 2025
Reviewed February 13, 2025
Super friendly dentist and staff.
- 5 out of 5 stars
Reviewed on
November 6, 2024
Reviewed November 6, 2024
Very thorough and professional. Absolutely fantastic visit. She tells you where your teeth are in detail and provides tailored recommendations.
- 5 out of 5 stars
Reviewed on
January 6, 2024
Reviewed January 6, 2024
Great, professional service! Dr. Casey changed my dentist experience by considering my goals for my smile even though I was in for a routine cleaning. Recommendations and fun conversation were not something I expected during my visit.
- 5 out of 5 stars
Reviewed on
March 4, 2023
Reviewed March 4, 2023
Feel good response and easy procedure for oral cleaning.
- 5 out of 5 stars
Reviewed on
January 30, 2023
Reviewed January 30, 2023
Signing up was quick and the online instructions were simple. Finding a dentist in my area was easy. My dentist was friendly, patient, and knowledgeable.
- 5 out of 5 stars
Reviewed on
January 27, 2023
Reviewed January 27, 2023
Dr. Casey was fantastic. I have some dental issues to address, and she did not make me feel ashamed about my teeth at all. She also took time to explain my care options in detail. I recommend her highly.
- 5 out of 5 stars
Reviewed on
September 20, 2022
Reviewed September 20, 2022
Doctor did a great job on my cleaning. She explained the steps and care plan needed for me.
- 5 out of 5 stars
Reviewed on
August 10, 2022
Reviewed August 10, 2022
very experienced dentist, did a great cleaning and answered all questions with options