Active NPI
Sierra Rose Castonguay, MS, LAT, ATC
- Athletic Trainer
- Portland, ME
National Provider Identifier
1740089606
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Athletic Trainer
- License
- AT992
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
| License | State | Type | Specialty |
|---|---|---|---|
| 1626 | NH | MD | Clinical Social Worker |
| AT992 | ME | MD | Athletic 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.