Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William J Duensing, DO

Family Medicine Physician in Galesburg, IL · enumerated 2006.

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

National Provider Identifier

1982673190

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Registry record

Entity type Individual (Type 1)

Name William J Duensing

Credential DO

Sex Male

Practice address 834 N Seminary St, Ste 404, Galesburg, IL, 61401

Phone (309) 343-3444

Fax (309) 343-2526

Enumeration date Mar 17, 2006

Last updated in NPPES Aug 3, 2016

Taxonomy & licenses

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License OS013149 (PA) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License OS013149 (PA) Secondary

2083P0500X Preventive Medicine/Occupational Environmental Medicine Physician Allopathic & Osteopathic Physicians · License 036117561 (IL) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 036-117561 (IL) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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.

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Frequently asked questions

How do I verify William Duensing's NPI record?

Cross-check NPI 1982673190 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1982673190 active?

Yes, as of the latest NPPES snapshot, NPI 1982673190 is active (record last updated 2016-08-03).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-08-03.