Katherine Brennan, LCSW
NPI 1134452170 · Clinical Social Worker · Brooklyn, NY
Katherine Brennan, LCSW is a Clinical Social Worker provider in Brooklyn, NY (NPI 1134452170).
Provider details
- NPI number
- 1134452170
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- No
- License
- 8396385 (NY)
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
16 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
- 2009-09-09
- Last updated
- 2016-03-07
Frequently asked questions
- What is Katherine Brennan's NPI number?
- Katherine Brennan's National Provider Identifier (NPI) is 1134452170, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Brennan's specialty?
- Katherine Brennan is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Katherine Brennan located?
- Katherine Brennan's practice location on file with NPPES is 644 President St, Brooklyn, NY 11215-1120.
- What is Katherine Brennan's phone number?
- The practice phone number listed in the NPPES registry for Katherine Brennan is (913) 735-3603.
- Is Katherine Brennan's NPI active?
- Yes — Katherine Brennan's NPI (1134452170) is active in the NPPES registry as of the last update on 2016-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.