Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Aaron Williams
Peer Specialist in San Diego, CA · enumerated 2026.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1558276956
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Registry record
Entity type Individual (Type 1)
Name Aaron Williams
Sex Male
Practice address 3870 Murphy Canyon Rd Ste 320, San Diego, CA, 92123
Phone (858) 300-0460
Enumeration date Aug 18, 2026
Last updated in NPPES Aug 18, 2026
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
What specialty is Aaron Williams?
Aaron Williams is registered in NPPES with the primary taxonomy of Peer Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-08-18.