Top Rated Dentists Serving Contra Costa County, CA

If you really care about choosing a quality dentist, we’re here for you. Here’s your access to the best dentists serving Contra Costa County including 94565, 94509, 94806, 94513 and 94553. These dental practices provide oral and maxillofacial surgery and dental x-rays, and they also work on teeth extractions, dentures and oral hygiene. For 22 years we’ve conducted the most accurate ratings and deepest research of local practices, so you’ll be confident in choosing.

  • Last Updated Jun 03, 2026
  • 3,303 people sourced companies in Dentist
    8,274 Verified Dentist Customers Surveyed
8,274
3,303
1 of 1

William R. Hummer, DDS

hidden

William R. Hummer, DDS is a general dentist practicing in San Leandro who offers a wide range of procedures to patients of all ages. The practice rece...
Read More

Main Services

Dentist
loarrowgo

Additional Services

Cosmetic, Preventive and Restorative Dentistry, Invisalign, Drill-Free Dentistry, Nitrous Oxide, Sinsational Smile Teeth Whitening, Implant Tooth Replacement, Including Implant-Supported Prosthetics, Orthodontics, Bleaching, Nightguards and Mouthguards, White Fillings, TV/Headphones

Brands

Invisalign, Crystalmark, Lancer Orthodontics

Coverage Areas

Alameda County

Established in 1985
Established in 1985
Appointments Available
Appointments Available
Live Phone Call Answers
Live Phone Call Answers
Diamond Certified Expert Contributor
Diamond Certified Expert Contributor
Diamond Certified Video Profile
Dentist - William R. Hummer, DDS - Alameda County
youtube
Diamond certified resource logo
Diamond Certified Company Report
William R. Hummer Jr., DDS-William R. Hummer, DDS
William R. Hummer Jr., DDS
Expert Contributions
ratings icon
  • 410
  • Rating Surveys
video icon
  • 23
  • Photos
    & Videos
articles icon
  • 5
  • Researched Articles
1239 Harrison St, San Leandro, CA 94577
Hours CLOSED NOW
License:
33780,
40376
Learn how to choose a Dentist and more…
Diamond Certified Dentists In Contra Costa County

Diamond Certified dentists serving Contra Costa County are rated an average of 4.6 out of 5 stars based on 2083 reviews of 71 rated dentists.
Diamond Certified dentists in Contra Costa County Avg. Star Rating.

We make you an expert at choosing a high-quality dentist in the area.

For those who love quality local dentists.

Within our Diamond Certified Resource:

You’ll love and refer your friends and family to your new area Diamond Certified dentist. They provide expert services, including toothache relief, dental restorations, dental x-rays, oral hygiene, dental exams, and more.

To qualify for Diamond Certified, each practice must score Highest in Quality and Helpful Expertise (a 90+ on a 100 scale) and pass all our credential-based ratings. Diamond Certified dentists that serve residents include William M. Schneider, D.D.S., Dr. James R. Mattingly DDS, Lovely Manlapaz Teodoro DDS, Alfred B. dela Cruz, DDS, and Draper Family Dentistry.

Every Diamond Certified dentist that serves residents in 94565, 94509, 94806, 94513 and 94553 performs various specialties, including dental crowns, dental fillings, teeth whitening, dental check-ups, and general dentistry.

How to Choose a Quality Dentist for Your Family
  1. Click the name of the practice to get to their Diamond Certified Company Report page.
  2. Watch their Diamond Certified Video Profile and other videos that we’ve created for you.
  3. Read their verbatim patient survey responses and our researched articles.
  4. Get helpful dental tips if they are a Diamond Certified Expert Contributor.
  5. Call or email them to schedule an appointment.
Become a Diamond Certified Preferred Member and Join Your Neighbors

If you love quality local practices, this is for you. Become a Diamond Certified Preferred Member (always free) and get a double performance guarantee, extra guides and tips, our annual Diamond Certified Directory, and more.

Your Diamond Certified Resource. We make you an expert at choosing.

We make you an expert at choosing local companies by giving you the most accurate ratings, deeply researched company reports and Diamond Certified Guide of all Resource Guides, which cover 70+ industries in the Auto, Home, Health and Personal service categories. Each guide contains 16 key articles that are separated into “Before, During and After the Job” tabs. These are written to guide you through each phase of hiring, starting, managing and ending a job in that specific type of service.

Diamond Certified Resource Compared to Crowd-Sourced Review Sites

Diamond Certified Resource’s ratings of local companies are based on surveys of only verified real customers, so they are the most accurate. This beats crowd-sourced review sites like Yelp, Angi or even Google that are plagued with fake, manipulated, cherry-picked and non-customer reviews, which produce inaccurate and often inflated rating scores.

Diamond Certified Resource’s deeply researched reports of top rated Diamond Certified companies include everything you need to see to be very confident in choosing a top rated local company. Each company report includes detailed quality ratings and scoring, verbatim customer survey responses, a profile video, a company story video, a capabilities table, a photo gallery, researched articles, unique expert contributions from the company’s owner, and more. This beats crowd-sourced review sites that solicit companies to “claim their business listing” and add any type of info to their profiles. This sounds good, but it has led to company profiles that are littered with false claims and incomplete info.

Map of Contra Costa County, CA

Contra Costa County was founded in 1853, and today, your 1,123,844 neighbors use dentists for dental fillings, dentures, dental bridges, oral and maxillofacial surgery, oral hygiene, and more.

Frequently Asked Questions for Dentist in Contra Costa, CA
Q: What are patients of Diamond Certified dentists saying about practices in Contra Costa County, CA?
A: Verified William R. Hummer, DDS Customer, 1 of 410
"My husband has been a patient of theirs and now I go there too. They are very helpful, friendly and professional. It's been a positive experience for both of us. I like that they greet you and get you in at the scheduled time for my appointment. I am not kept waiting. They are organized, efficient, and their appointments run on time. " - Aisha H.
All Survey Responses for William R. Hummer, DDS
Q: What are some of the most popular brands that Diamond Certified dentists use when working with Contra Costa County residents?
A: Diamond Certified dentists use top-quality brands like Fixodent, Tom's of Maine, Dr. Collins, Listerine and Supersmile.
Q: What types of teeth cleaning do dentists offer?
A: Dentists offer several types of teeth cleaning services. Regular cleanings, also known as prophylaxis, are done twice a year and involve removing plaque, tartar, and stains from teeth. Deep cleanings, also known as scaling and root planing, are more extensive and are done when a person has gum disease; they involve cleaning below the gum line to remove plaque and tartar. Dentists also offer polish and fluoride treatments to protect teeth after cleaning. Additionally, dentists can provide more specialized cleanings for individuals with braces or dental implants.
Q: Can Diamond Certified dentists work with Colgate products and similar items so I can get oral and maxillofacial surgery in Contra Costa County?
A: Yes, Diamond Certified dentists in Contra Costa County can utilize Colgate products and similar items for oral and maxillofacial surgeries.
Q: What did people search for when they wanted to find the best quality dentists in Contra Costa County?
A: Oral Hygiene
Teeth Cleaning
Dental Fillings
Dental Bridges
Gum Disease Treatments

Related Searches in Contra Costa, CA

Search Dentist in Nearby Locations

Nearby Search Results

Diamond Certified Companies Serving Contra Costa, CA

The Essential Guide to Dentists
Beyond the Brush: 8 Oral Hygiene Hacks in contra costa County, CA
Beyond the Brush: 8 Oral Hygiene Hacks
Posted by James Florence

Brushing and flossing may not be enough. Read these eight oral hygiene hacks for a healthier, fresher mouth and sparkling smile.

Diamond Certified Experts: Innovations in Dental Technology in contra costa County, CA
Diamond Certified Experts: Innovations in Dental Technology
Posted by James Florence

Here’s what you need to know about innovations in dental technology, dental prosthetics, dental implants, cavity treatments, teeth grinding and more.

Children’s Health FAQs: Dental, Vision & Hearing in contra costa County, CA
Children’s Health FAQs: Dental, Vision & Hearing
Posted by James Florence

Children have unique needs when it comes to the health of their teeth, eyes and ears. Learn how to care for your kids’ dental, vision and hearing health.

Industry Spotlight: American Dental Association in contra costa County, CA
Industry Spotlight: American Dental Association
Posted by James Florence

Learn about the American Dental Association (ADA). This organization provides dental research, public awareness, advocacy, philanthropy and member benefits.

View the Full Diamond Certified Guide to Dentists