IndividualActive
John Brennan
NPI 1508205063 · Social Worker · Brockton, MA
John Brennan is a Social Worker provider in Brockton, MA (NPI 1508205063).
Provider details
- NPI number
- 1508205063
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(71/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 yrs in NPPES registry
- Profile completeness38% of score
83% 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
1115 W Chestnut St
Brockton, MA 02301-7501
Phone: (508) 580-5162
Street-level locationGet directions
Mailing address
252 High St
Pembroke, MA 02359-2707
Registry dates
- Enumerated
- 2013-06-18
- Last updated
- 2013-06-18
Frequently asked questions
- What is John Brennan's NPI number?
- John Brennan's National Provider Identifier (NPI) is 1508205063, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Brennan's specialty?
- John Brennan is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is John Brennan located?
- John Brennan's practice location on file with NPPES is 1115 W Chestnut St, Brockton, MA 02301-7501.
- What is John Brennan's phone number?
- The practice phone number listed in the NPPES registry for John Brennan is (508) 580-5162.
- Is John Brennan's NPI active?
- Yes — John Brennan's NPI (1508205063) is active in the NPPES registry as of the last update on 2013-06-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.