Alameda County
Alameda County is a healthcare organization registered as Community/Behavioral Health Agency in Hayward, CA, holding Type 2 (organization) NPI 1780716381 since 2007. The authorized official on file is Karyn Tribble, Director.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1780716381 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Alameda County |
| Other name | <Unavail> |
| Practice address | 409 JACKSON ST, Hayward, CA, 94544 |
| Phone | 5103835103 |
| Enumeration date | 2007-03-09 |
| Last updated in NPPES | 2025-05-07 |
Authorized official
| Name | Karyn Tribble |
|---|---|
| Title | Director |
| Phone | 5105678100 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 251S00000X | Community/Behavioral Health Agency | Primary | — | — |
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0000001AY | Medicaid | CA | — |
Copy-ready billing details
Provider: Alameda County NPI: 1780716381 Taxonomy: 251S00000X (Community/Behavioral Health Agency) Address: 409 JACKSON ST, Hayward, CA, 94544
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1518753052 | Zoe Sonnenberg | Individual | Clinical Social Worker | Hayward, CA |
| 1902946924 | Scott Bloom | Individual | Clinical Social Worker | Hayward, CA |
| 1669504288 | Alameda County | Organization | Community/Behavioral Health Agency | Hayward, CA |
| 1356533236 | Susannah Mackaye | Individual | Clinical Social Worker | Hayward, CA |
Verify this record
Cross-check NPI 1780716381 against the authoritative CMS record: view Alameda County on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
Who is the authorized official for Alameda County?
What is the NPI number for Alameda County?
Source: CMS NPPES (public data). Snapshot 2026-07-09. Provider record last updated 2025-05-07.