Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Louise Williams
Registered Nurse in Valencia, CA · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1699314948
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Registry record
Entity type Individual (Type 1)
Name Louise Williams
Sex Female
Practice address 23845 Mcbean Pkwy, Valencia, CA, 91355
Phone (661) 200-1080
Fax (661) 200-1076
Enumeration date Jan 4, 2020
Last updated in NPPES Jan 4, 2020
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 327481 | Other | CA | RN LICENSE |
| 327481 | Other | CA | LICENSE |
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.
Frequently asked questions
What is the NPI number for Louise Williams?
The National Provider Identifier (NPI) for Louise Williams is 1699314948, a Type 1 (individual) record in the CMS NPPES registry.
Where does Louise Williams practice?
The practice location on file with NPPES is in Valencia, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Roger E. Der, M.D., Inc. Anatomic Pathology & Clinical Pathology Physician · Valencia, CA NPI 1750375358 Pathology Associates of Valencia Anatomic Pathology & Clinical Pathology Physician · Valencia, CA NPI 1427042001 Francis Lau Anesthesiology Physician · Valencia, CA NPI 1528056900 Henry Mayo Newhall Memorial Hospital General Acute Care Hospital · Valencia, CA NPI 1780668434 Birikti Zeratzion Anesthesiology Physician · Valencia, CA NPI 1750357992 Philip Ngo Anesthesiology Physician · Valencia, CA NPI 1306812268 Yen Nguyen Anesthesiology Physician · Valencia, CA NPI 1942276803 Walter Rogoff Anesthesiology Physician · Valencia, CA NPI 1215903141
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-04.