Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Dr William N Byrkit Jr PC

Chiropractor in Collinsville, IL · enumerated 2006 · authorized official William Byrkit, Chiropractor.

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

National Provider Identifier

1235204686

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Dr William N Byrkit Jr PC

Other name <Unavail>

Practice address 1280 Vandalia St, Collinsville, IL, 62234

Phone (618) 344-2501

Fax (618) 344-2502

Enumeration date Nov 21, 2006

Last updated in NPPES May 21, 2009

Taxonomy & classification

111N00000X Chiropractor Chiropractic Providers · License 038003310 (IL) Primary

Authorized official

Name William Byrkit

Title Chiropractor

Phone (618) 344-2501

Other identifiers

Identifier	Type	State	Issuer
038003310	Medicaid	IL	-
06082012	Other	IL	BCBS
791350047	Other	IL	RR MEDICARE

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 Dr William N Byrkit Jr PC located?

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2009-05-21. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-05-21.