Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. John K Hertko, DC
Chiropractor in Joliet, IL · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1871672097
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Registry record
Entity type Individual (Type 1)
Name Dr. John K Hertko
Credential DC
Sex Male
Practice address 1100 Essington Rd, Joliet, IL, 60435
Phone (815) 741-0353
Enumeration date Nov 6, 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
Is NPI 1871672097 active?
Yes, as of the latest NPPES snapshot, NPI 1871672097 is active (record last updated 2007-07-08).
How do I verify John Hertko's NPI record?
Cross-check NPI 1871672097 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → R Natesh Surgery Physician · Joliet, IL NPI 1427037043 Rupa Natesh Family Medicine Physician · Joliet, IL NPI 1548217086 Steven B Overpeck Dpm PC Foot & Ankle Surgery Podiatrist · Joliet, IL NPI 1548397607 Vcp Home Health Care Inc Home Health Agency · Joliet, IL NPI 1275733610 R.K. Natesh MD PC Surgery Physician · Joliet, IL NPI 1114116134 Joliet Foot Care Center, PC Ambulatory Surgical Clinic/Center · Joliet, IL NPI 1174872717
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.