Dental Summit Three Dots
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9113 Foothill Blvd, Suite 210, Rancho
Cucamonga, Ca 91730 |

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9725 Sierra Avenue, Fontana, CA 92335 |

The family Dentists In Rancho Cucamonga CA Trusts

“Family” means more than related by blood or marriage. Family is the people you care deeply about. You want the best for them in every way, including confident smiles. Dr. Mario Castellanos and his team at Dental Summit understand this, and he is the dentist who patients trust in the Rancho Cucamonga, CA area with their oral health, appearance, and the wellbeing of people they love.

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Comfort, convenience, kid-friendly

Our goal is to make you feel right at home in our care. It starts with a warm voice at your first call, and continues with:

  • Plenty of free parking at our office.
  • A bright, modern building with easy access.
  • A welcoming atmosphere and staff who genuinely care about making your experience pleasant.
  • Unhurried explanation of treatment options and answers to your questions.
  • Attention to detail in every procedure.
  • The option of gentle sedation for anxious patients.
  • Genuine joy in treating children. We love to get kids started on lifetime dental wellness.

One home for dental care

It can be inconvenient, stressful, and expensive to be referred out to specialists. Dental Summit provides a broad range of hygiene and preventive services, general/restorative dentistry, and cosmetic treatments.

Meet the doctors

Dr. Mario Castellanos
Dr. Marco Javier


I'm so glad I found Dental Summit and Dr. Castellanos. Dr. Castellanos is the best dentist I've ever dealt with. He and his staff are very nice and caring. My whole experience was very pleasant. I could never thank Dr. Castellanos enough for all he has done for me. He is awesome. Thank you so much for everything Dr. Castellanos.
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All the dental care

you are likely to need at every stage of life is right here. Call us 909-822-6200 Or
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