Giselle Nissenbaum, MSW
NPI 1952233504 · Clinical Social Worker · Los Angeles, CA
Giselle Nissenbaum, MSW is a Clinical Social Worker provider in Los Angeles, CA (NPI 1952233504).
Provider details
- NPI number
- 1952233504
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 130496 (CA)
Specialties & taxonomies
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
Under 1 yr in 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
- 2026-05-29
- Last updated
- 2026-05-29
- Certified
- 2026-05-29
Frequently asked questions
- What is Giselle Nissenbaum's NPI number?
- Giselle Nissenbaum's National Provider Identifier (NPI) is 1952233504, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Giselle Nissenbaum's specialty?
- Giselle Nissenbaum is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Giselle Nissenbaum located?
- Giselle Nissenbaum's practice location on file with NPPES is 200 Medical Plaza Unit 502, Los Angeles, CA 90095-0001.
- What is Giselle Nissenbaum's phone number?
- The practice phone number listed in the NPPES registry for Giselle Nissenbaum is (310) 794-6644.
- Is Giselle Nissenbaum's NPI active?
- Yes — Giselle Nissenbaum's NPI (1952233504) is active in the NPPES registry as of the last update on 2026-05-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.