Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Timothy James Hartlett, DC
Chiropractor in Mchenry, IL · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1790896629
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Registry record
Entity type Individual (Type 1)
Name Dr. Timothy James Hartlett
Credential DC
Sex Male
Practice address 202 S Il Route 31, Mchenry, IL, 60050
Phone (815) 344-1192
Fax (815) 344-8070
Enumeration date Aug 31, 2006
Last updated in NPPES Dec 26, 2012
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 this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Timothy Hartlett?
Timothy Hartlett is registered in NPPES with the primary taxonomy of Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-12-26.