Mr. William Wacker
Mr. William Wacker is a Case Management Agency provider (Case Management) practicing in Van Nuys, CA, registered in the NPPES registry with NPI 1801070685 since 2007.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1801070685 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Mr. William Wacker |
| Sex | Male |
| Practice address | Van Nuys, CA, 91401 |
| Phone | 8183742849 |
| Fax | 8189096719 |
| Enumeration date | 2007-12-28 |
| Last updated in NPPES | 2007-12-28 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 251B00000X | Case Management Agency | Primary | — | — |
Copy-ready billing details
Provider: William Wacker NPI: 1801070685 Taxonomy: 251B00000X (Case Management Agency) Address: Van Nuys, CA, 91401
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1366625832 | Ivory Freeman | Individual | Case Management Agency | Van Nuys, CA |
| 1295918605 | Esther Mcelroy | Individual | Case Management Agency | Van Nuys, CA |
| 1861675274 | Analilia Ortega | Individual | Case Management Agency | Van Nuys, CA |
| 1609059195 | Michael Zazueta | Individual | Case Management Agency | Van Nuys, CA |
| 1891979662 | Ray Causly | Individual | Case Management Agency | Van Nuys, CA |
| 1891979670 | Mary Norment | Individual | Case Management Agency | Van Nuys, CA |
| 1609050475 | Juan Guevara | Individual | Case Management Agency | Van Nuys, CA |
| 1265617476 | Rosemary Kim | Individual | Case Management Agency | Van Nuys, CA |
Verify this record
Cross-check NPI 1801070685 against the authoritative CMS record: view Mr. William Wacker 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
Is NPI 1801070685 active?
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Source: CMS NPPES (public data). Snapshot 2026-07-10. Provider record last updated 2007-12-28.