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Dr. Gianmarco O'Brien, DDS

Dr. Gianmarco O'Brien, DDS

Prosthodontics
20+ years of experience

Dr. Gianmarco O'Brien, DDS is a prosthodontics practitioner in Orange, CA and has over 20 years of experience in the medical field. He graduated from University of the Pacific Arthur A. Dugoni School of Dentistry in 2003. He is accepting new patients.

4.9 Star Rating
Based on 45 reviews 4.9 Star Rating (45 reviews)

Practice

1140 W La Veta Ave Ste 530 Orange, CA 92868
(714) 953-1000

At a Glance

  • Explains Conditions Well
    Patients said this doctor explains conditions well. • See reviews
  • Trustworthy
    Patients said this doctor is trustworthy. • See reviews
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Dr. O'Brien's Reviews

Likelihood to recommend Dr. O'Brien

4.9

45 ratings, 27 with a written review
5 Star
98%
98%
4 Star
0%
0%
3 Star
0%
0%
2 Star
0%
0%
1 Star
2%
2%

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RecentHighestLowestMost Helpful
What went well
No results
What could be improved
No results
1 person found this helpful
Helpful
Erin Swenson-Healey – Jun 10, 2024
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Apr 07, 2023
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Cam Findlay – Jan 21, 2023
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
S McMillan – Feb 16, 2022
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Dec 24, 2021
×Post a ResponseAre you Dr. Gianmarco O'Brien, DDS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Ashley – Jun 20, 2020
×Post a ResponseAre you Dr. Gianmarco O'Brien, DDS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Jessica Mallernee – May 04, 2020
×Post a ResponseAre you Dr. Gianmarco O'Brien, DDS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
1 person found this helpful
Helpful
Lauren – Mar 12, 2020
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What went well
No results
What could be improved
No results
Helpful
May 08, 2019
×Post a ResponseAre you Dr. Gianmarco O'Brien, DDS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
CA, none – Jan 09, 2019
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Kym – Dec 30, 2018
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Linda Tabor in Tustin, CA – May 24, 2018
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Terri in Upland, CA – Aug 05, 2017
×Post a ResponseAre you Dr. Gianmarco O'Brien, DDS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Terri in Upland, CA – Aug 05, 2017
×Post a ResponseAre you Dr. Gianmarco O'Brien, DDS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Kathy B in Los Angeles, CA – Feb 09, 2017
×Post a ResponseAre you Dr. Gianmarco O'Brien, DDS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
LLiu in WALNUT – Jan 07, 2017
×Post a ResponseAre you Dr. Gianmarco O'Brien, DDS?
What went well
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Li Liu in La Verne, CA – Jan 07, 2017
×Post a ResponseAre you Dr. Gianmarco O'Brien, DDS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Howard A in Anaheim, CA – Dec 16, 2016
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Evie Hodge now Evie Larson in cathedral City, CA now Auburn, WA – May 23, 2016
×Post a ResponseAre you Dr. Gianmarco O'Brien, DDS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Chinny in Huntington Beach – Feb 27, 2016
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Know Before You Go

About Me

biography

Dr. Gianmarco O'Brien, DDS is a prosthodontics practitioner in Orange, CA and has over 20 years of experience in the medical field. He graduated from University of the Pacific Arthur A. Dugoni School of Dentistry in 2003. He is accepting new patients.

  • Prosthodontics

  • Dentistry

  • Cosmetic Dentistry

  • Sedation Dentistry

  • Neuromuscular Dentistry

  • Sports Dentistry

  • Orofacial Pain Dentistry

  • Emergency Dentistry

  • Special Care Dentistry

  • University Of California, Los Angeles. (ucla)

    Residency Hospital, 2006

  • University Of The Pacific Arthur A. Dugoni School Of Dentistry

    Medical School, 2003

  • Santa Clara University

    Undergraduate School, 1996

Healthgrades Tips for Getting the Best Dental Care

Locations

Practice

Mark A. George D.D.S. Inc.1140 W La Veta Ave Ste 530 Orange, CA 92868
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