Margaret Clennan, LCSW
NPI 1750789962 · Clinical Social Worker · Riverhead, NY
Margaret Clennan, LCSW is a Clinical Social Worker provider in Riverhead, NY (NPI 1750789962).
Provider details
- NPI number
- 1750789962
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- R036988-1 (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
11 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
- 2014-12-22
- Last updated
- 2014-12-22
Frequently asked questions
- What is Margaret Clennan's NPI number?
- Margaret Clennan's National Provider Identifier (NPI) is 1750789962, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Clennan's specialty?
- Margaret Clennan is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Margaret Clennan located?
- Margaret Clennan's practice location on file with NPPES is 3302 Willow Pond Dr, Riverhead, NY 11901-7226.
- What is Margaret Clennan's phone number?
- The practice phone number listed in the NPPES registry for Margaret Clennan is (631) 786-0422.
- Is Margaret Clennan's NPI active?
- Yes — Margaret Clennan's NPI (1750789962) is active in the NPPES registry as of the last update on 2014-12-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.