Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

William J Duensing, DO

Individual provider General Practice Physician · NPI 1982673190

William J Duensing, DO is a General Practice Physician in Galesburg, Illinois. Licensed in Illinois and Pennsylvania. Registered with an NPI since 2006.

Licensed in
IL, PA
In the registry since
2006
Specialties on file
4
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

834 N Seminary St Ste 404
Galesburg, IL 61401-0500
Phone: (309) 343-3444
Fax: (309) 343-2526
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 036-117561 (IL)
General Practice Physician Taxonomy 208D00000X · Licence OS013149 (PA)
Family Medicine Physician Taxonomy 207Q00000X · Licence OS013149 (PA)
Preventive Medicine/Occupational Environmental Medicine Physician Taxonomy 2083P0500X · Licence 036117561 (IL)

Record details

NPI number1982673190
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 17, 2006
Last updated in NPPESAugust 3, 2016
Mailing address834 N Seminary St, Ste 404, Galesburg, IL 61401-0500