George Mercier, M.S.W., L.I.C.S.W.
NPI 1598231557 · Clinical Social Worker · Westfield, MA
George Mercier, M.S.W., L.I.C.S.W. is a Clinical Social Worker provider in Westfield, MA (NPI 1598231557).
Provider details
- NPI number
- 1598231557
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- M.S.W., L.I.C.S.W.
- Sex
- Male
- Sole proprietor
- No
- License
- SW1017576 (MA)
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
7 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
- 2018-10-17
- Last updated
- 2018-10-17
Frequently asked questions
- What is George Mercier's NPI number?
- George Mercier's National Provider Identifier (NPI) is 1598231557, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is George Mercier's specialty?
- George Mercier is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is George Mercier located?
- George Mercier's practice location on file with NPPES is 26 Crown St, Westfield, MA 01085-1111.
- What is George Mercier's phone number?
- The practice phone number listed in the NPPES registry for George Mercier is (413) 427-3929.
- Is George Mercier's NPI active?
- Yes — George Mercier's NPI (1598231557) is active in the NPPES registry as of the last update on 2018-10-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.