IndividualActive
Brennan Williams
NPI 1861712960 · Counselor · Boston, MA
Brennan Williams is a Counselor provider in Boston, MA (NPI 1861712960).
Provider details
- NPI number
- 1861712960
- Entity type
- Individual
- Primary specialty
- CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(77/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 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
143 N St
Boston, MA 02127-3233
Phone: (617) 515-9006
Street-level locationGet directions
Mailing address
143 N St
Boston, MA 02127-3233
Registry dates
- Enumerated
- 2010-06-11
- Last updated
- 2010-06-11
Frequently asked questions
- What is Brennan Williams's NPI number?
- Brennan Williams's National Provider Identifier (NPI) is 1861712960, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brennan Williams's specialty?
- Brennan Williams is listed in the NPPES registry with a primary specialty of Counselor (Behavioral Health & Social Service Providers).
- Where is Brennan Williams located?
- Brennan Williams's practice location on file with NPPES is 143 N St, Boston, MA 02127-3233.
- What is Brennan Williams's phone number?
- The practice phone number listed in the NPPES registry for Brennan Williams is (617) 515-9006.
- Is Brennan Williams's NPI active?
- Yes — Brennan Williams's NPI (1861712960) is active in the NPPES registry as of the last update on 2010-06-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.