Erin O'Brien, LMFT
NPI 1023990744 · Marriage & Family Therapist · Los Angeles, CA
Erin O'Brien, LMFT is a Marriage & Family Therapist provider in Los Angeles, CA (NPI 1023990744).
Provider details
- NPI number
- 1023990744
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- LMFT
- Sex
- Female
- Sole proprietor
- Yes
- License
- 155231 (CA)
Specialties & taxonomies
Behavioral Health & Social 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
- 2025-07-23
- Last updated
- 2026-04-29
- Certified
- 2026-04-29
Frequently asked questions
- What is Erin O'Brien's NPI number?
- Erin O'Brien's National Provider Identifier (NPI) is 1023990744, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Erin O'Brien's specialty?
- Erin O'Brien is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Erin O'Brien located?
- Erin O'Brien's practice location on file with NPPES is 1019 Gayley Ave Fl 2, Los Angeles, CA 90024-3437.
- What is Erin O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Erin O'Brien is (855) 501-1004.
- Is Erin O'Brien's NPI active?
- Yes — Erin O'Brien's NPI (1023990744) is active in the NPPES registry as of the last update on 2026-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.