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Mary Gnieser, LCSW
NPI 1083854202 · Clinical Social Worker · Commack, NY
Mary Gnieser, LCSW is a Clinical Social Worker provider in Commack, NY (NPI 1083854202).
Provider details
- NPI number
- 1083854202
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- No
- License
- 73 080458 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(86/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
340 Veterans Memorial Hwy
Suite 12
Commack, NY 11725-4300
Phone: (631) 680-4278
Approximate (ZIP-level) locationGet directions
Mailing address
340 Veterans Memorial Hwy
Commack, NY 11725-4300
Registry dates
- Enumerated
- 2009-02-27
- Last updated
- 2013-04-12
Frequently asked questions
- What is Mary Gnieser's NPI number?
- Mary Gnieser's National Provider Identifier (NPI) is 1083854202, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Gnieser's specialty?
- Mary Gnieser is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mary Gnieser located?
- Mary Gnieser's practice location on file with NPPES is 340 Veterans Memorial Hwy, Commack, NY 11725-4300.
- What is Mary Gnieser's phone number?
- The practice phone number listed in the NPPES registry for Mary Gnieser is (631) 680-4278.
- Is Mary Gnieser's NPI active?
- Yes — Mary Gnieser's NPI (1083854202) is active in the NPPES registry as of the last update on 2013-04-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.