Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Thomas C. Keeler, MD

Urology Physician in Evanston, IL · enumerated 2006.

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

National Provider Identifier

1558375873

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Registry record

Entity type Individual (Type 1)

Name Thomas C. Keeler

Credential MD

Sex Male

Practice address 1000 Central St, Suite 720, Evanston, IL, 60201

Phone (847) 475-8600

Fax (847) 475-8654

Enumeration date Jul 29, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Thomas Keeler practice?

The practice location on file with NPPES is in Evanston, IL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Thomas Keeler?

The National Provider Identifier (NPI) for Thomas Keeler is 1558375873, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.