Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. William Nathaniel Byrkit Jr., DC
Chiropractor in Collinsville, IL · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1154483360
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Registry record
Entity type Individual (Type 1)
Name Dr. William Nathaniel Byrkit Jr.
Credential DC
Sex Male
Practice address 1280 Vandalia Street, Collinsville, IL, 62234
Phone (618) 344-2501
Fax (618) 344-2502
Enumeration date Dec 14, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders.
About the DC credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 06082012 | Other | IL | BLUECROSS BLUESHIELD |
| 038003310 | Medicaid | IL | - |
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.
Frequently asked questions
What is the NPI number for William Byrkit?
The National Provider Identifier (NPI) for William Byrkit is 1154483360, a Type 1 (individual) record in the CMS NPPES registry.
Where does William Byrkit practice?
The practice location on file with NPPES is in Collinsville, IL. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.