Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jonathan William Jansen, DO

Hospitalist Physician in Winfield, IL · enumerated 2009.

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

National Provider Identifier

1114169166

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Jonathan William Jansen

Credential DO

Sex Male

Practice address 25 N Winfield Rd, Winfield, IL, 60190

Phone (630) 933-4700

Fax (630) 933-4427

Enumeration date Apr 6, 2009

Last updated in NPPES May 24, 2023

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036136259 (IL) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 036136259 (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

Other identifiers

Identifier	Type	State	Issuer
206147	Other	IL	MEDICARE GROUP
036136259	Medicaid	IL	-
F400262423	Other	IL	MEDICARE PTAN

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

How do I verify Jonathan Jansen's NPI record?

Cross-check NPI 1114169166 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1114169166 active?

Yes, as of the latest NPPES snapshot, NPI 1114169166 is active (record last updated 2023-05-24).

Other providers at this practice address

Browse all →

Nicolai Hinds Obstetrics & Gynecology Physician · Winfield, IL NPI 1124024161 Teresa Smith Family Nurse Practitioner · Winfield, IL NPI 1861499899 Luis Torero Pediatric Pulmonology Physician · Winfield, IL NPI 1952399560 David Woodard Surgery Physician · Winfield, IL NPI 1447231782 James Carroll Cardiovascular Disease Physician · Winfield, IL NPI 1841272432 Michael Hussey Maternal & Fetal Medicine Physician · Winfield, IL NPI 1053395384 Neil Agruss Cardiovascular Disease Physician · Winfield, IL NPI 1780661736 Associated General Surgeons, S.C. Surgery Physician · Winfield, IL NPI 1174501266

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-05-24.