Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. John Raymond Dekker, DC
Chiropractor in Bourbonnais, IL · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1578664561
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Registry record
Entity type Individual (Type 1)
Name Dr. John Raymond Dekker
Credential DC
Sex Male
Practice address 586 Latham Dr, Suite 7, Bourbonnais, IL, 60914
Phone (815) 932-7926
Fax (815) 932-1269
Enumeration date Sep 25, 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
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
Where does John Dekker practice?
The practice location on file with NPPES is in Bourbonnais, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Dekker?
The National Provider Identifier (NPI) for John Dekker is 1578664561, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.