Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Alexander Charles Halstead, D.C.
Chiropractor in Wilmette, IL · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1144841321
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Registry record
Entity type Individual (Type 1)
Name Dr. Alexander Charles Halstead
Credential D.C.
Sex Male
Practice address 402 Linden Ave, Wilmette, IL, 60091
Phone (847) 920-4506
Enumeration date Apr 29, 2020
Last updated in NPPES Jun 30, 2020
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 Alexander Halstead practice?
The practice location on file with NPPES is in Wilmette, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Alexander Halstead?
The National Provider Identifier (NPI) for Alexander Halstead is 1144841321, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-06-30.