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Clare Marie Day

Urology Physician in Chicago, IL · enumerated 2026.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1205779204

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Registry record

Entity type Individual (Type 1)
Name Clare Marie Day
Sex Female
Practice address Chicago, IL, 60637
Phone (773) 702-1860
Enumeration date Apr 13, 2026
Last updated in NPPES Jun 3, 2026

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License 125.087967 (IL) Primary

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.

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Frequently asked questions

What is the NPI number for Clare Day?
The National Provider Identifier (NPI) for Clare Day is 1205779204, a Type 1 (individual) record in the CMS NPPES registry.
Where does Clare Day practice?
The practice location on file with NPPES is in Chicago, IL. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-03.