Greta Gleissner, LCSW
NPI 1881928539 · Social Worker · New York, NY
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Greta Gleissner, LCSW is a Social Worker provider in New York, NY (NPI 1881928539).
Provider details
- NPI number
- 1881928539
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- No
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
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
Mailing address
Registry dates
- Enumerated
- 2009-09-29
- Last updated
- 2023-07-25
- Certified
- 2023-07-25
Frequently asked questions
- What is Greta Gleissner's NPI number?
- Greta Gleissner's National Provider Identifier (NPI) is 1881928539, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Greta Gleissner's specialty?
- Greta Gleissner is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Greta Gleissner located?
- Greta Gleissner's practice location on file with NPPES is 57 W 57th St Ste 1101, New York, NY 10019-2814.
- What is Greta Gleissner's phone number?
- The practice phone number listed in the NPPES registry for Greta Gleissner is (917) 373-4557.
- Does Greta Gleissner accept Medicare?
- Greta Gleissner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Greta Gleissner's NPI active?
- Yes — Greta Gleissner's NPI (1881928539) is active in the NPPES registry as of the last update on 2023-07-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.