Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Katherine Williams, NMD
Naturopath in San Diego, CA · enumerated 2024.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1699596171
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Registry record
Entity type Individual (Type 1)
Name Katherine Williams
Credential NMD
Sex Female
Practice address 800 W Ivy St Ste A, San Diego, CA, 92101
Phone (619) 840-6700
Enumeration date Oct 17, 2024
Last updated in NPPES Oct 17, 2024
Taxonomy & licenses
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
Where does Katherine Williams practice?
The practice location on file with NPPES is in San Diego, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Katherine Williams?
The National Provider Identifier (NPI) for Katherine Williams is 1699596171, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-17.