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

Dr. Ronald O Williams, D.C.

Chiropractor in Morrison, IL · enumerated 2009.

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

National Provider Identifier

1235379769

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Registry record

Entity type Individual (Type 1)

Name Dr. Ronald O Williams

Credential D.C.

Sex Male

Practice address Morrison, IL, 61270

Phone (815) 772-7122

Fax (815) 734-3194

Enumeration date Feb 24, 2009

Last updated in NPPES Feb 24, 2009

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

Taxonomy & licenses

111NI0013X Independent Medical Examiner Chiropractor Chiropractic Providers · License 038003346 (IL) Secondary

111N00000X Chiropractor Chiropractic Providers · License 038003346 (IL) 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
098-15385-40	Other	IL	BLUE CROSS
038003346	Medicaid	IL	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1235379769 active?

Yes, as of the latest NPPES snapshot, NPI 1235379769 is active (record last updated 2009-02-24).

How do I verify Ronald Williams's NPI record?

Cross-check NPI 1235379769 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-02-24.