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Serving the Quad Cities Since 2003

A portion of all of our proceeds go back to local charities. 

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patient reviews

  • LOVE LOVE LOVE Dr. Mark and all the team!! Amazing, wonderful, kind, cheerful, efficient, caring, careful, beautiful work, all the time, every time!!! Can NOT ask for better!

    Maggie O'Malley
    Maggie O'Malley Google
  • Dr. Costes and his team are amazing. They work with you and let you understand what is going on. I do not have dental insurance, but they offered a discount plan called Ambassador, and I now can afford all the dental treatment I need! The staff is very compassionate and personable! I'm not going anywhere else, this will always be my dental office!

    Mikay Kay M.
    Mikay Kay M. Google
  • I recently had some dental work done at Horizon Dental in Chino. The Horizon team removed my stress with their professionalism and compassion. My appointment started on schedule and the after care recommendations from Darla were much appreciated. Thanks Horizon!!!

    Ted Michael
    Ted Michael
  • Dr. Reed is so amazing! I had my teeth cleaned and looked at yesterday, they were very thorough but did not try to "sell" me into treatment that I didn't need. The front office staff was so nice and happy to help with my questions. I would recommend this office to all of my friends and family members!

    Michelle Widrick
    Michelle Widrick Google
  • The staff are always superb from start to finish. From the moment I walk in the door until checkout I'm made to feel welcome and part of the "family". My hygienist Kristi was very professional and expressed great care with all of my concerns. I suggest Horizon Dental to anybody looking for new dental care or new to the area.

    Jason Gardner
    Jason Gardner Google
  • I have been seeing Dr. Costes at the Horizon Dental group since I moved into the area.  He and his team are fantastic.  They made me feel comfortable and at home. They took time to answer my questions and concerns.  I would highly recommend the Horizon Dental group if you need a dentist who is friendly and kind.

    Jason B.
    Jason B. Yelp
  • Great dental office. Everyone was incredibly helpful and explained everything so well. I love that the staff and Doctors volunteer to help people who can't afford dental care. The office is clean and I would recommend it to anyone and everyone. It's worth the drive.

    Chama C.
    Chama C. Yelp
  • Not what you would expect from a small town dental office.  I drive all the way up from Phoenix to see Dr. Costes.  He and the staff are THAT GOOD!  Super clean facility and I am always greeted with smiles and friendly faces.  With all my choices in the valley, I still choose to make the trek up to Chino Valley!

    Richie D.
    Richie D. Yelp
  • Dr Costes was great and replaced my bridge and fixed a loose filling. Fast and painless everyone in his office was friendly and I appreciate how attentive they were and hope I don't need to go back for more than a cleaning but I wouldn't go anywhere else if I need to get work done

    Tony C.
    Tony C. Yelp
  • Dr Costes and his staff at Prescott Horizon Dental Group provide kind, caring, professional and affordable dental care. I am very grateful that they have an office in Prescott and that I can experience all they offer when I need dental care.

    Patricia Quinlan-Genter
    Patricia Quinlan-Genter Facebook

Chino Valley . Spring Valley . Prescott . Prescott Valley

How can we serve you?

How can we serve you?

Our team is trained and skilled in cosmetic dentistry, restorative dentistry and preventative dentistry. We look forward to serving you and your family.

Horizon Dental Group’s Community Dedication

Horizon Dental Group’s Community Dedication

A portion of all proceeds are donated right back to our quad cities community.

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Patients served since 2003.
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Donations to local charities since 2003.

At Horizon Dental Group our entire team is passionate about one simple, unified mission: To Provide Exceptional Dental Care to our patients while making a positive impact within our community.Focusing on these two goals allows us to make a difference in our patients lives. We pledge to continue our dedication to our amazing patients and to the community that we are so fortunate to call home. As well as to support the good works of many local organizations.