Active NPI
Gisselle Jannely Santellan
- School Counselor
- Hayward, CA
National Provider Identifier
1265225155
On this page
Key facts
NPPES NPI Registry- Primary specialty
- School Counselor
- Practice address
- 951 Palisade St
Hayward, CA 94542-1048 - Phone
- (510) 370-3334
- NPI assigned
- May 23, 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| School Counselor | 101YS0200X | CA | Primary |
Addresses
Primary practice location
951 Palisade St
Hayward, CA 94542-1048
Mailing address
951 Palisade St
Hayward, CA 94542-1048
Phone (510) 370-3334
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
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Hayward Twin Oaks Montessori | Past | Accepting new patients |
Organizations & group practices 1
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Local Education Agency (LEA)
- Hayward, CA
- NPI 1669037875
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1747958400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1747958400000",
"number": "1265225155",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "951 PALISADE ST",
"city": "HAYWARD",
"state": "CA",
"postal_code": "945421048",
"telephone_number": "510-370-3334"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "951 PALISADE ST",
"city": "HAYWARD",
"state": "CA",
"postal_code": "945421048",
"telephone_number": "510-370-3334"
}
],
"practiceLocations": [],
"basic": {
"last_name": "SANTELLAN",
"first_name": "GISSELLE",
"middle_name": "JANNELY",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2025-05-23",
"last_updated": "2025-05-23",
"certification_date": "2025-05-23",
"status": "A"
},
"taxonomies": [
{
"code": "101YS0200X",
"taxonomy_group": "",
"desc": "Counselor, School",
"state": "CA",
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Hayward, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 23, 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.