IndividualActive
Katherine Messier
NPI 1275884744 · Clinical Social Worker · Westfield, MA
Katherine Messier is a Clinical Social Worker provider in Westfield, MA (NPI 1275884744).
Provider details
- NPI number
- 1275884744
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(72/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 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
77 Mill St
Westfield, MA 01085-4598
Phone: (413) 572-4101
Street-level locationGet directions
Mailing address
77 Mill St
Westfield, MA 01085-4598
Registry dates
- Enumerated
- 2012-09-25
- Last updated
- 2012-09-25
Frequently asked questions
- What is Katherine Messier's NPI number?
- Katherine Messier's National Provider Identifier (NPI) is 1275884744, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Messier's specialty?
- Katherine Messier is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Katherine Messier located?
- Katherine Messier's practice location on file with NPPES is 77 Mill St, Westfield, MA 01085-4598.
- What is Katherine Messier's phone number?
- The practice phone number listed in the NPPES registry for Katherine Messier is (413) 572-4101.
- Is Katherine Messier's NPI active?
- Yes — Katherine Messier's NPI (1275884744) is active in the NPPES registry as of the last update on 2012-09-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.