What is Hailey O'Brien's NPI number?

Hailey O'Brien's National Provider Identifier (NPI) is 1366231805, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Hailey O'Brien's specialty?

Hailey O'Brien is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).

Where is Hailey O'Brien located?

Hailey O'Brien's practice location on file with NPPES is 1400 E Janss Rd, Thousand Oaks, CA 91362-2133.

What is Hailey O'Brien's phone number?

The practice phone number listed in the NPPES registry for Hailey O'Brien is (818) 964-1501.

Is Hailey O'Brien's NPI active?

Yes — Hailey O'Brien's NPI (1366231805) is active in the NPPES registry as of the last update on 2025-05-01.

IndividualActive

Hailey O'Brien

NPI 1366231805 · Mental Health Counselor · Thousand Oaks, CA

Hailey O'Brien is a Mental Health Counselor provider in Thousand Oaks, CA (NPI 1366231805).

Provider details

NPI number: 1366231805
Entity type: Individual
Primary specialty: Mental Health CounselorBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: No
License: 151274 (CA)

Specialties & taxonomies

Mental Health CounselorPrimary101YM0800XLicense 151274 (CA)
Behavioral Health & Social Service Providers

Profile Score

Established profile(55/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
1 yr in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

1400 E Janss Rd

Thousand Oaks, CA 91362-2133

Phone: (818) 964-1501

Street-level locationGet directions

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Mailing address