Gwen Grenard, LCSW-R
NPI 1417003732 · Clinical Social Worker · Great Neck, NY
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gwen Grenard, LCSW-R is a Clinical Social Worker provider in Great Neck, NY (NPI 1417003732).
Provider details
- NPI number
- 1417003732
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW-R
- Sex
- Female
- Sole proprietor
- Yes
- License
- R048175-1 (NY)
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
19 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
- 2007-01-27
- Last updated
- 2020-12-16
- Certified
- 2020-12-16
Frequently asked questions
- What is Gwen Grenard's NPI number?
- Gwen Grenard's National Provider Identifier (NPI) is 1417003732, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gwen Grenard's specialty?
- Gwen Grenard is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Gwen Grenard located?
- Gwen Grenard's practice location on file with NPPES is 505 Northern Blvd, Great Neck, NY 11021-5108.
- What is Gwen Grenard's phone number?
- The practice phone number listed in the NPPES registry for Gwen Grenard is (516) 639-6392.
- Does Gwen Grenard accept Medicare?
- Gwen Grenard is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gwen Grenard's NPI active?
- Yes — Gwen Grenard's NPI (1417003732) is active in the NPPES registry as of the last update on 2020-12-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.