Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Colin Overton
Counselor in Chicago, IL · enumerated 2016.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1639621147
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Registry record
Entity type Individual (Type 1)
Name Colin Overton
Sex Male
Practice address 1111 N Wells St Ste 400, Chicago, IL, 60610
Phone (312) 573-8860
Enumeration date Nov 1, 2016
Last updated in NPPES Nov 1, 2016
Taxonomy & licenses
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 Colin Overton practice?
The practice location on file with NPPES is in Chicago, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Colin Overton?
The National Provider Identifier (NPI) for Colin Overton is 1639621147, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-11-01.