Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Stephen Conway

General Practice Dentistry in Granite City, IL · enumerated 2013.

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

National Provider Identifier

1821429747

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Registry record

Entity type Individual (Type 1)

Name Dr. Stephen Conway

Sex Male

Practice address Granite City, IL, 62040

Phone (618) 931-2322

Enumeration date Dec 2, 2013

Last updated in NPPES Dec 2, 2013

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 019.015353 (IL) Primary

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 does Stephen Conway practice?

The practice location on file with NPPES is in Granite City, IL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Stephen Conway?

The National Provider Identifier (NPI) for Stephen Conway is 1821429747, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-12-02.