NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. William Henry Hammons Jr., DC

Chiropractor in Columbia, MO · enumerated 2005.

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

National Provider Identifier

1649264045

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Registry record

Entity type Individual (Type 1)
Name Mr. William Henry Hammons Jr.
Credential DC
Sex Male
Practice address Columbia, MO, 65203
Phone (573) 449-7999
Fax (573) 449-7597
Enumeration date Aug 31, 2005
Last updated in NPPES Feb 14, 2017

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License CE005052 (MO) Primary
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier Type State Issuer
251761 Other MO UNITED HEALTHCARE
414032 Other MO HEALTHLINK
7376 Other MO BCBS

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

Where does William Hammons practice?
The practice location on file with NPPES is in Columbia, MO. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for William Hammons?
The National Provider Identifier (NPI) for William Hammons is 1649264045, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-02-14.