Brianna O'Brien
NPI 1881532521 · Psychiatric/Mental Health Registered Nurse · Orange, CA
Brianna O'Brien is a Psychiatric/Mental Health Registered Nurse provider in Orange, CA (NPI 1881532521).
Provider details
- NPI number
- 1881532521
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Registered NurseNursing Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 95326153 (CA)
Specialties & taxonomies
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
Mailing address
Registry dates
- Enumerated
- 2026-03-24
- Last updated
- 2026-03-24
- Certified
- 2026-03-23
Frequently asked questions
- What is Brianna O'Brien's NPI number?
- Brianna O'Brien's National Provider Identifier (NPI) is 1881532521, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brianna O'Brien's specialty?
- Brianna O'Brien is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Registered Nurse (Nursing Service Providers).
- Where is Brianna O'Brien located?
- Brianna O'Brien's practice location on file with NPPES is 1235 W Town and Country Rd Apt 2320, Orange, CA 92868-4634.
- What is Brianna O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Brianna O'Brien is (626) 224-7007.
- Is Brianna O'Brien's NPI active?
- Yes — Brianna O'Brien's NPI (1881532521) is active in the NPPES registry as of the last update on 2026-03-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.