Dr. Leon Kosdon, DDS
General Dentistry
Offering general dentistry in Thousand Oaks, serving patients for 19 years. Rated 4.9 out of 5 across 513 public Google reviews.
- Phone
- (805) 495-2431
- Experience
- 19+ years in practice
Independently rated by patient reviews, credentials, and care quality.
Quick answer
Our top ranked dental practice in Thousand Oaks, California is Dr. Leon Kosdon, DDS, rated 4.9 out of 5 across 513 public reviews. Other top choices include Dr. Janice Beierle, DDS and Dr. Joseph Frake, DDS. Thousand Oaks has a population of about 128,731, and the 5 strongest local practices are compared on this page.
Whether you just moved to Thousand Oaks, California or your old office closed, this page is a fast way to find quality care. We reviewed dental practices across Thousand Oaks, California and ranked them on patient reviews, verified credentials, and range of care. The result is an independent shortlist you can compare side by side in one place.
Across the 5 top practices we highlight in Thousand Oaks, patients can access general dentistry. The Thousand Oaks practices on this list average 17 years in practice, with Dr. Janice Beierle, DDS among the most established at 21 years. Listed offices serve several parts of the city, including the 91360, 91320 ZIP areas. Together these practices hold 1,235 public Google reviews, led by Dr. Leon Kosdon, DDS with 513. The average rating across the list is 5.0 out of 5.
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General Dentistry
Offering general dentistry in Thousand Oaks, serving patients for 19 years. Rated 4.9 out of 5 across 513 public Google reviews.
General Dentistry
Provides general dentistry for Thousand Oaks families, a well established practice with 21 years of experience. Rated 5.0 out of 5 across 150 public Google reviews.
General Dentistry
A Thousand Oaks dental office focused on general dentistry, serving patients for 17 years. Rated 5.0 out of 5 across 177 public Google reviews.
General Dentistry
Known in Thousand Oaks for general dentistry, a well established practice with 20 years of experience. Rated 5.0 out of 5 across 105 public Google reviews.
General Dentistry
A Thousand Oaks dental office focused on general dentistry, serving patients for 8 years. Rated 4.9 out of 5 across 290 public Google reviews.
Practice names, credentials, and specialties are verified against the US National Provider Identifier (NPI) registry, the official record of licensed healthcare providers. Listings were last reviewed on August 27, 2026.
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The mouth is often the first place wider health problems show up. A dentist in Thousand Oaks, California looks after cleanings, cavities, crowns, and the overall condition of your mouth. Regular visits catch cavities and gum disease early and protect the bone that holds your teeth in place.
General Dentistry5 of 5 listed practices
General dentists are your first stop for everyday care: checkups, cleanings, fillings, crowns, and preventive advice. Most families see a general dentist twice a year.
Dental care keeps advancing, from same day crowns to clear aligners and AI assisted diagnostics. See what is new in dentistry and what to ask your Thousand Oaks dentist.
Our Thousand Oaks, California ranking is editorial, not paid. Each practice is scored on patient reviews and review volume, verified credentials from the national provider registry, years in practice, and online presence. Sponsored placements are always labeled and never change how the organic list is ranked.
Read our full ranking methodologyCheck credentials and experience
Confirm the dentist is licensed and look at how long the practice has served Thousand Oaks. Years in practice and clear credentials such as DDS or DMD are a strong signal of consistent care.
Read recent patient reviews
Reviews reveal what it is really like to be a patient, from wait times to how comfortable procedures feel. Look for a steady pattern of positive feedback rather than a single glowing note.
Match services to your needs
If you want cosmetic work, implants, or braces, choose a Thousand Oaks practice that offers those services in house so your care stays coordinated under one roof.
Ask about insurance and payment
Call ahead to confirm the office accepts your plan and offers payment options. Many Thousand Oaks practices work with major insurers and provide financing for larger treatments.
Visit for a first appointment
A cleaning or consultation is the best way to judge cleanliness, technology, and how well the team listens. Trust your comfort level with both the dentist and the staff.
Knowing what happens at a first visit in Thousand Oaks, California takes the nerves out of booking one. Expect a review of your medical history, a set of digital X rays, and a full exam of your teeth and gums. Bring your insurance details and a list of questions so you get the most from the appointment.
Before your first visit in Thousand Oaks, California, it helps to understand how billing works. Preventive care such as exams and cleanings is often covered in full by dental insurance, while restorative and cosmetic work usually involves a share of the cost. If you do not have insurance, ask each office about cash prices, in house membership plans, and financing, which many Thousand Oaks practices provide for larger treatments.
Before you commit to a dentist in Thousand Oaks, California, a few direct questions tell you a lot about the practice.
We rank practices using a transparent scoring system that weighs patient reviews, review volume, verified credentials from the national provider registry, years in practice, and online presence. The result is an editorial shortlist of the 5 strongest dental practices in Thousand Oaks, California.
We refresh our data on a regular cycle and show the last updated date at the top of this page. Practice details can change, so we recheck sources and re rank listings to keep Thousand Oaks current.
Practices can purchase a sponsored position, which is always clearly marked with a Sponsored label. Sponsored placement never changes how we evaluate or rank the organic listings, which stay based purely on our objective criteria.
Look for verified credentials, strong and recent patient reviews, the specific services you need such as implants or orthodontics, accepted insurance, and a first visit that leaves you comfortable with the team. Location and office hours in Thousand Oaks matter too.
Every listing has a Report an issue link. If a phone number, address, or other detail is out of date, let us know and we will verify and correct it.
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