La Mesa Family Dentistry near Lake Murray at 5308 Lake Murray Boulevard opened in 2015 when Dr. O'Brien acquired the established practice from retiring dentist Dr. Faith Bolam. The Lake Murray area office provides general family dentistry including Invisalign, digital impressions, and crown-and-bridge work, with TMJ and jaw-clenching cases sometimes co-managed alongside cervical-spine specialists such as Chiro and Coffee. O'Brien is a member of the San Diego Advanced Study Group, which operates as a chapter of the nationally recognized Seattle Study Club continuing-education network for general practitioners. Language assistance in Filipino, Spanish, and Ukrainian extends access to La Mesa's multilingual communities along the Lake Murray Boulevard corridor. Post-operative rehabilitation following extraction or implant-abutment seating is coordinated with musculoskeletal providers including Select Physical Therapy — La Mesa for patients whose jaw dysfunction requires concurrent physical-therapy intervention. The practice's most technically demanding procedures include digitally scanned implant-crown fabrication with custom-milled titanium abutments and layered porcelain-fused-to-zirconia suprastructures.