# TIMOTHY O'BRIEN

TIMOTHY O'BRIEN is an ADHD evaluation provider with an address in FOUNTAIN VALLEY, CA, United States.

## Details

- Address: 10061 TALBERT AVE \# 234, FOUNTAIN VALLEY, CA, 927085159
- Phone: [949-526-9504](<tel:9495269504>)
- National Provider Identifier (NPI): 1275924557
- Credentials: Ph.D.
- Provider type: Clinical neuropsychologist
- Source of the listing data: CMS NPI Registry, retrieved 2026-10-03, public, free

## Questions

### Where is TIMOTHY O'BRIEN?

TIMOTHY O'BRIEN is at 10061 TALBERT AVE \# 234, FOUNTAIN VALLEY, CA, 927085159.

### How do I contact TIMOTHY O'BRIEN?

To contact TIMOTHY O'BRIEN, call 949-526-9504.

### Is TIMOTHY O'BRIEN accepting new patients?

That is not in the registry data. Call the phone number on the listing and ask about availability, wait times and insurance.

## Source

From [CMS NPI Registry (National Plan and Provider Enumeration System)](https://npiregistry.cms.hhs.gov/api/?version=2.1&number=1275924557), license US government public data. CMS publishes NPPES provider data for open access under its data dissemination notice., checked 2026-10-06.

Last updated October 6, 2026.

## Links

- This ADHD evaluation provider on the [web page](<https://adhdevaluations.fyi/ca/fountain-valley/timothy-obrien>)
- [ADHD evaluations in FOUNTAIN VALLEY](<https://adhdevaluations.fyi/ca/fountain-valley/category/adhd-evaluations.md>)
- [Clinical neuropsychologists in FOUNTAIN VALLEY](<https://adhdevaluations.fyi/ca/fountain-valley/category/clinical-neuropsychologists.md>)
- [More ADHD evaluation providers in FOUNTAIN VALLEY](<https://adhdevaluations.fyi/ca/fountain-valley.md>)