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. Mario Castellanos

Dr. Mario Castellanos While Dr. Castellanos enjoys all aspects of practice, he feels the best part of being a dentist is the ability to help people, whether that means getting them out of pain or creating the beautiful smiles they deserve.

Dr. Castellanos has been a dentist for more than thirty years, owing a private practice since 1997. He performs a wide range of general dentistry services, as well oral surgery (including extraction of third molars, in some cases). He has keen interest and specialized training in:

  • Orthodontics
  • Oral conscious sedation
  • Pediatric dental treatment
  • Cosmetic dentistry

Active membership in professional organizations such as these help the doctor stay up-to-date with current advances in the field:

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

  • Tri-County Dental Society, where Dr. Castellanos gives back to the community through volunteer work for underprivileged families at Riverside Health Fair.

Dr. Castellanos was born in Guadalajara, Jalisco Mexico, and now calls Chino Hills, CA home. He is married and the proud father of three sons, all practicing in the dental field! When the white coat comes off, you will find Dr. Castellanos traveling, mountaineering, hiking, or enjoying baseball and plant propagation.

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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