Active NPI
Stacy Alvarado
- Social Worker
- Fremont, CA
National Provider Identifier
1144009986
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Social Worker
- Practice address
- 40292 Leslie St
Fremont, CA 94538-3520 - Phone
- (510) 657-7080
- NPI assigned
- Sep 21, 2023
- Sex
- Female
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Social Worker | 104100000X | Primary |
Addresses
Primary practice location
40292 Leslie St
Fremont, CA 94538-3520
Mailing address
40292 Leslie St
Fremont, CA 94538-3520
Other practice location 1
37944 Farwell Dr
Fremont, CA 94536-7008
Phone (510) 793-1359
Other practice location 2
4620 Mattos Dr
Fremont, CA 94536-6738
Phone (510) 797-0740
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
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1695254400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1758672000000",
"number": "1144009986",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "40292 LESLIE ST",
"city": "FREMONT",
"state": "CA",
"postal_code": "945383520"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "40292 LESLIE ST",
"city": "FREMONT",
"state": "CA",
"postal_code": "945383520",
"telephone_number": "510-657-7080"
}
],
"practiceLocations": [
{
"address_1": "37944 Farwell Dr",
"address_purpose": "LOCATION",
"city": "Fremont",
"state": "CA",
"postal_code": "945367008",
"country_code": "US",
"telephone_number": "510-793-1359",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "4620 Mattos Dr",
"address_purpose": "LOCATION",
"city": "Fremont",
"state": "CA",
"postal_code": "945366738",
"country_code": "US",
"telephone_number": "510-797-0740",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "ALVARADO",
"first_name": "STACY",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2023-09-21",
"last_updated": "2025-09-24",
"certification_date": "2025-09-24",
"status": "A"
},
"taxonomies": [
{
"code": "104100000X",
"taxonomy_group": "",
"desc": "Social Worker",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Fremont, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 24, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.