Merrilee O'Brien, LMFT
NPI 1538209218 · Mental Health Counselor · Torrance, CA
Merrilee O'Brien, LMFT is a Mental Health Counselor provider in Torrance, CA (NPI 1538209218).
Provider details
- NPI number
- 1538209218
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- LMFT
- Sex
- Female
- Sole proprietor
- Yes
- License
- MFC30075 (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
19 yrs 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
Mailing address
Registry dates
- Enumerated
- 2007-02-08
- Last updated
- 2007-07-08
Frequently asked questions
- What is Merrilee O'Brien's NPI number?
- Merrilee O'Brien's National Provider Identifier (NPI) is 1538209218, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Merrilee O'Brien's specialty?
- Merrilee O'Brien is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Merrilee O'Brien located?
- Merrilee O'Brien's practice location on file with NPPES is 3333 Skypark Dr, Torrance, CA 90505-5023.
- What is Merrilee O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Merrilee O'Brien is (310) 257-5776.
- Is Merrilee O'Brien's NPI active?
- Yes — Merrilee O'Brien's NPI (1538209218) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.