Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Daniel J. Williams, DC
Chiropractor in Livermore, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1558302679
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Registry record
Entity type Individual (Type 1)
Name Daniel J. Williams
Credential DC
Sex Male
Practice address 4475 1st St, Livermore, CA, 94551
Phone (925) 449-3356
Fax (925) 449-5229
Enumeration date Jun 9, 2006
Last updated in NPPES Jan 30, 2019
Taxonomy & licenses
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders.
About the DC credential
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
Is NPI 1558302679 active?
Yes, as of the latest NPPES snapshot, NPI 1558302679 is active (record last updated 2019-01-30).
How do I verify Daniel Williams's NPI record?
Cross-check NPI 1558302679 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-01-30.