Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Owen K Sweis, M.D.

Vascular & Interventional Radiology Physician in Winfield, IL · enumerated 2009.

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

National Provider Identifier

1164651196

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Registry record

Entity type Individual (Type 1)

Name Dr. Owen K Sweis

Credential M.D.

Sex Male

Practice address 25 N Winfield Rd, Winfield, IL, 60189

Phone (630) 933-4487

Enumeration date Jul 12, 2009

Last updated in NPPES Feb 20, 2025

Taxonomy & licenses

2085R0204X Vascular & Interventional Radiology Physician Allopathic & Osteopathic Physicians · License 036131294 (IL) Primary

2085R0204X Vascular & Interventional Radiology Physician Allopathic & Osteopathic Physicians · License 01073645A (IN) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 036-131294 (IL) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
206147	Other	IL	MEDICARE GROUP
F400460423	Other	IL	MEDICARE INDIVIDUAL

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 Owen Sweis's NPI record?

Cross-check NPI 1164651196 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1164651196 active?

Yes, as of the latest NPPES snapshot, NPI 1164651196 is active (record last updated 2025-02-20).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-20.