Olida Member
Brianna Staley Shumaker
Trivium Delta Psychology Group, PC
Echo ParkIn-person & Online
AssessmentCognitive Baseline TestingDiagnostic ClarityADHDHigh Performers
Olida Provider
Mental health provider
Experienced provider
Trivium Delta Psychology Group, PC
In-person & online
Private, soundproofed office
Professional Member
Echo Park
About Brianna
Assessment for clarity, performance, and the future.
I’m Brianna Staley Shumaker, PhD, a board-certified clinical psychologist providing psychological and cognitive assessment for adults, particularly high-performing professionals.
A primary service in my practice is cognitive baseline assessment for healthy adults who want to understand and document how their brain is functioning today. This establishes an objective benchmark that can be used in the future if cognitive changes, illness, injury, or concerns arise.
I also provide comprehensive evaluations for ADHD, autism, personality, and complex diagnostic questions—particularly when symptoms overlap or the correct diagnosis is unclear.
My forensic and occupational services include fitness-for-duty, employment and pre-employment evaluations, FAA psychological evaluations, and select legal/forensic evaluations.
Self-referrals and professional referrals are welcome, including referrals from psychiatrists, therapists, physicians, attorneys, and employers.
Cognitive Baselines: www.brain-baseline.com
Psychological, Consulting, and Forensic Evaluations: www.triviumd.com
Specialties
Therapy Approach
Additional focus areas
AssessmentCognitive Baseline TestingDiagnostic ClarityADHDHigh PerformersAviation Psychology
Where to See Brianna

Echo Park
1910 W Sunset Blvd, Suite 800, Los Angeles, CA 90026

Alexandria
1737 King St, Suite 330, Alexandria, VA 22314

Encino
16530 Ventura Blvd, Suite 400, Encino, CA 91436

Studio City
11846 Ventura Blvd, Suite 204, Studio City, CA 91604

Beverly Hills
8500 Wilshire Blvd, Suite 740, Beverly Hills, CA 90211
Online Therapy
Online sessions may be available directly through this provider.
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