4th Second
4th Second is a healthcare organization registered as Case Manager/Care Coordinator in Vallejo, CA, holding Type 2 (organization) NPI 1992419709 since 2023. The authorized official on file is Emily Fisher, Director of Community Health.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1992419709 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | 4th Second |
| Practice address | 929 AMADOR ST, Vallejo, CA, 94590 |
| Phone | 7073350300 |
| Enumeration date | 2023-01-06 |
| Last updated in NPPES | 2023-01-06 |
Authorized official
| Name | Emily Fisher |
|---|---|
| Title | Director of Community Health |
| Phone | 5305744847 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 251X00000X | Supports Brokerage Agency | Secondary | — | — |
| 261QR0405X | Substance Use Disorder Rehabilitation Clinic/Center | Secondary | — | — |
| 385H00000X | Respite Care | Secondary | — | — |
| 171M00000X | Case Manager/Care Coordinator | Primary | — | — |
Copy-ready billing details
Provider: 4th Second NPI: 1992419709 Taxonomy: 171M00000X (Case Manager/Care Coordinator) Address: 929 AMADOR ST, Vallejo, CA, 94590
Verify this record
Cross-check NPI 1992419709 against the authoritative CMS record: view 4th Second 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
What type of organization is 4th Second?
What is a Type 2 NPI?
Source: CMS NPPES (public data). Snapshot 2026-07-10. Provider record last updated 2023-01-06.