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 |

Dr. Marco Javier Castellanos

Dr. Marco Javier Castellanos Dr. Marco Castellanos is passionate about educating patients and ensuring their satisfaction with results of treatment. He applies strong training in clinical procedures and diversification in many aspects of dentistry, with a hands-on, interactive approach.

Dr. Castellanos has been active in private practice since earning his DDS degree in 2013. He enjoys the precision of clinical dentistry – root canals, fillings, crowns, bridges, dentures, partial dentures, and deep cleanings. He takes special interest in children’s dentistry, with advanced training in pediatric oral sedation, and is certified in Invisalign treatment.

Serving local communities with a varied skill set is important to Dr. Castellanos. He keeps those skills current with continuing education, and membership in professional organizations:

American Dental Association logo American Dental Association
California Dental Association logo California Dental Association
Tri-County Dental Society logo Tri-County Dental Society

As a native of Chino and a current resident of Chino Hills, CA Dr. Castellanos believes in giving back to the community. He volunteers services for California Care Force, CDA Cares, and other local charitable events.

Family is a big part of career for Dr. Castellanos. Parents and siblings in the dental field provide great support for one another. Outside the office, he is a nature enthusiast, taking advantage of Orange County’s climate for camping, hiking, and running. He likes traveling, beer tasting, and cooking, too.

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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