Gwenne Landau, CASAC-T
NPI 1154769248 · Addiction (Substance Use Disorder) Counselor · Brooklyn, NY
Gwenne Landau, CASAC-T is a Addiction (Substance Use Disorder) Counselor provider in Brooklyn, NY (NPI 1154769248).
Provider details
- NPI number
- 1154769248
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- CASAC-T
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Counselor101Y00000X
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
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
Mailing address
Registry dates
- Enumerated
- 2013-06-11
- Last updated
- 2013-06-11
Frequently asked questions
- What is Gwenne Landau's NPI number?
- Gwenne Landau's National Provider Identifier (NPI) is 1154769248, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gwenne Landau's specialty?
- Gwenne Landau is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Gwenne Landau located?
- Gwenne Landau's practice location on file with NPPES is 2020 Coney Island Ave, Brooklyn, NY 11223-2329.
- What is Gwenne Landau's phone number?
- The practice phone number listed in the NPPES registry for Gwenne Landau is (347) 563-9914.
- Is Gwenne Landau's NPI active?
- Yes — Gwenne Landau's NPI (1154769248) is active in the NPPES registry as of the last update on 2013-06-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.