Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Louis Jacobs

Chiropractor in Des Plaines, IL · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1467440966

Verified

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Registry record

Entity type Individual (Type 1)

Name Dr. William Louis Jacobs

Sex Male

Practice address 658 W Algonquin Rd, Des Plaines, IL, 60016

Phone (847) 228-1383

Fax (847) 228-1383

Enumeration date Oct 10, 2005

Last updated in NPPES Jul 13, 2026

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 3702 (AZ) Secondary

111N00000X Chiropractor Chiropractic Providers Primary

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.

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Frequently asked questions

What is the NPI number for William Jacobs?

The National Provider Identifier (NPI) for William Jacobs is 1467440966, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Jacobs practice?

The practice location on file with NPPES is in Des Plaines, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-13.