Heather Messier
NPI 1356633408 · Developmental Therapist · South Hadley, MA
Heather Messier is a Developmental Therapist provider in South Hadley, MA (NPI 1356633408).
Provider details
- NPI number
- 1356633408
- Entity type
- Individual
- Primary specialty
- Developmental TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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
Mailing address
Registry dates
- Enumerated
- 2011-05-09
- Last updated
- 2011-05-09
Frequently asked questions
- What is Heather Messier's NPI number?
- Heather Messier's National Provider Identifier (NPI) is 1356633408, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Heather Messier's specialty?
- Heather Messier is listed in the NPPES registry with a primary specialty of Developmental Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Heather Messier located?
- Heather Messier's practice location on file with NPPES is 30 Old Lyman Rd, South Hadley, MA 01075-2630.
- What is Heather Messier's phone number?
- The practice phone number listed in the NPPES registry for Heather Messier is (413) 533-7140.
- Is Heather Messier's NPI active?
- Yes — Heather Messier's NPI (1356633408) is active in the NPPES registry as of the last update on 2011-05-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.