Individual provider Active NPI

Sierra Rose Castonguay, MS, LAT, ATC

  • Athletic Trainer
  • Portland, ME
National Provider Identifier
1740089606
Registry record updated Jan 10, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Athletic TrainerTaxonomy code 2255A2300X
License
AT992 Issued in ME
Practice address
96 Falmouth St
Portland, ME 04103-4864
Phone
(800) 800-4876
NPI assigned
Mar 12, 2025
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 10, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Athletic Trainer 2255A2300X AT992 ME Primary
Athletic Trainer 2255A2300X 1626 NH

Addresses

Primary practice location

96 Falmouth St
Portland, ME 04103-4864

Mailing address

6 Patriots LN
Nottingham, NH 03290-5821
Phone (603) 303-6614

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled
Credentials
Master of Science

State licenses

LicenseStateTypeSpecialty
1626NHMDClinical Social Worker
AT992MEMDAthletic Trainer

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1741737600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768003200000",
    "number": "1740089606",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6 PATRIOTS LN",
            "city": "NOTTINGHAM",
            "state": "NH",
            "postal_code": "032905821",
            "telephone_number": "603-303-6614"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "96 FALMOUTH ST",
            "city": "PORTLAND",
            "state": "ME",
            "postal_code": "041034864",
            "telephone_number": "800-800-4876"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CASTONGUAY",
        "first_name": "SIERRA",
        "middle_name": "ROSE",
        "credential": "MS, LAT, ATC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-03-12",
        "last_updated": "2026-01-10",
        "certification_date": "2026-01-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2255A2300X",
            "taxonomy_group": "",
            "desc": "Specialist/Technologist, Athletic Trainer",
            "state": "ME",
            "license": "AT992",
            "primary": true
        },
        {
            "code": "2255A2300X",
            "taxonomy_group": "",
            "desc": "Specialist/Technologist, Athletic Trainer",
            "state": "NH",
            "license": "1626",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Portland, ME

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 10, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.