Active NPI
Katherine Cellini
- Social Worker
- Castro Valley, CA
National Provider Identifier
1255118246
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Social Worker
- License
- ASW134886
- Practice address
- 2050 Fairmont Dr
Castro Valley, CA 94578-1001 - Phone
- (415) 970-4000
- NPI assigned
- Sep 12, 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 | ASW134886 | CA | Primary |
Addresses
Primary practice location
2050 Fairmont Dr
Castro Valley, CA 94578-1001
Mailing address
901 Sara CT Apt 74
Vacaville, CA 95687-6263
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": "1694476800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1782432000000",
"number": "1255118246",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "901 SARA CT APT 74",
"city": "VACAVILLE",
"state": "CA",
"postal_code": "956876263"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2050 FAIRMONT DR",
"city": "CASTRO VALLEY",
"state": "CA",
"postal_code": "945781001",
"telephone_number": "415-970-4000"
}
],
"practiceLocations": [],
"basic": {
"last_name": "CELLINI",
"first_name": "KATHERINE",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2023-09-12",
"last_updated": "2026-06-26",
"certification_date": "2026-06-26",
"status": "A"
},
"taxonomies": [
{
"code": "104100000X",
"taxonomy_group": "",
"desc": "Social Worker",
"state": "CA",
"license": "ASW134886",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Castro Valley, CA
- Castro Valley Unified
- Michelle Ann Castro
- Angelica Santos Casuga, BUSINESS OWNER
- Damoni Badru Cato-Cain
- Richard Cederstrom Jr., D.C.
- Karenth Galvan Centeno
- Chabot Family Associates Inc.
- Chabot Urology Medical Associates, a Professional Corp. (Chabot Urology Medcal Associates, A Professional Corp.)
- Christine Chace, PPS
- Mandeep Kaur Chadha, AUD
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 26, 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.