Dr. Gianmarco O'Brien, DDS
Prosthodontist in Orange, California
- License current, checked November 2026
- Address corroborated
Practice location and contact
Mark a. George DDS, Inc.
Address confirmed by a second public record. Last updated in the federal registry in 2010.
License and credentials
California dental license
Status and expiry date
51630, current, expires February 2028
Licensed since
2003
Specialties
Prosthodontics
National Provider Identifier
1336338847
Also at this office
Dr. Steven Baba, DDS
Endodontist, licensed since 1991
Dr. Mark George, DDS
Prosthodontist, licensed since 1983
Dr. Daniel Kantarovich, DDS
General dentist, licensed since 1991
Other prosthodontists near Orange
- Dr. David Guichet, DDSOrange, 0.2 mi
- Dr. Gregory Guichet, DDSOrange, 0.2 mi
- Dr. Kent OchiaiSanta Ana, 1.7 mi
- Dr. Nelson Lowe, DDSSanta Ana, 2.5 mi
- Dr. Carlos Munoz, DDSOrange, 2.9 mi
Questions about Dr. O'Brien
Is Dr. O'Brien licensed in California?
Yes. License 51630 was current in the Dental Board of California file for November 2026 and expires in February 2028.
Where is Dr. O'Brien’s office?
Dr. O'Brien practices at 1140 W La Veta Ave, Ste 530, Orange, CA 92868, at Mark a. George DDS, Inc..
Does Dr. O'Brien offer sedation?
Dr. O'Brien does not hold a state sedation or anesthesia permit in the Dental Board file for November 2026. Dentists without one can still use local anesthetic.