Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

William G Bonzelet MD, Sc

Internal Medicine Physician in Edwardsville, IL · enumerated 2006 · authorized official William Bonzelet, Owner.

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

National Provider Identifier

1487726782

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name William G Bonzelet MD, Sc

Practice address 7 157 Ctr, Edwardsville, IL, 62025

Phone (618) 659-2371

Fax (618) 659-2375

Enumeration date Nov 14, 2006

Last updated in NPPES Feb 1, 2012

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036091754 (IL) Primary

Authorized official

Name William Bonzelet

Title Owner

Phone (618) 659-2371

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

Where is William G Bonzelet MD, Sc located?

The practice location on file with NPPES is in Edwardsville, IL.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2012-02-01. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-02-01.