Sierra Castonguay, MS, LAT, ATC
NPI 1740089606 · Athletic Trainer · Portland, ME
Sierra Castonguay, MS, LAT, ATC is a Athletic Trainer provider in Portland, ME (NPI 1740089606).
Provider details
- NPI number
- 1740089606
- Entity type
- Individual
- Primary specialty
- Athletic TrainerRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- MS, LAT, ATC
- Sex
- Female
- Sole proprietor
- No
- License
- AT992 (ME)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
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
1 yr 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
- 2025-03-12
- Last updated
- 2026-01-10
- Certified
- 2026-01-10
Frequently asked questions
- What is Sierra Castonguay's NPI number?
- Sierra Castonguay's National Provider Identifier (NPI) is 1740089606, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sierra Castonguay's specialty?
- Sierra Castonguay is listed in the NPPES registry with a primary specialty of Athletic Trainer (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Sierra Castonguay located?
- Sierra Castonguay's practice location on file with NPPES is 96 Falmouth St, Portland, ME 04103-4864.
- What is Sierra Castonguay's phone number?
- The practice phone number listed in the NPPES registry for Sierra Castonguay is (800) 800-4876.
- Is Sierra Castonguay's NPI active?
- Yes — Sierra Castonguay's NPI (1740089606) is active in the NPPES registry as of the last update on 2026-01-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.