Mariah O'Brien, MSW, LCSW
NPI 1730602095 · Clinical Social Worker · Brookline, MA
Mariah O'Brien, MSW, LCSW is a Clinical Social Worker provider in Brookline, MA (NPI 1730602095).
Provider details
- NPI number
- 1730602095
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW, LCSW
- Sex
- Female
- Sole proprietor
- No
- License
- 25628 (MN)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
8 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
- 2017-07-19
- Last updated
- 2020-07-30
- Certified
- 2020-07-30
Frequently asked questions
- What is Mariah O'Brien's NPI number?
- Mariah O'Brien's National Provider Identifier (NPI) is 1730602095, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mariah O'Brien's specialty?
- Mariah O'Brien is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mariah O'Brien located?
- Mariah O'Brien's practice location on file with NPPES is 1269 Beacon St, Brookline, MA 02446-5248.
- What is Mariah O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Mariah O'Brien is (617) 232-1303.
- Is Mariah O'Brien's NPI active?
- Yes — Mariah O'Brien's NPI (1730602095) is active in the NPPES registry as of the last update on 2020-07-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.