Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Clare M Ollayos, D.C.

Chiropractor in Elgin, IL · enumerated 2006.

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

National Provider Identifier

1851369912

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Registry record

Entity type Individual (Type 1)

Name Clare M Ollayos

Credential D.C.

Sex Female

Practice address Elgin, IL, 60123

Phone (847) 888-9988

Fax (847) 741-6743

Enumeration date Mar 14, 2006

Last updated in NPPES Mar 18, 2013

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

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 038-006137 (IL) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Clare Ollayos?

The National Provider Identifier (NPI) for Clare Ollayos is 1851369912, a Type 1 (individual) record in the CMS NPPES registry.

Where does Clare Ollayos practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-03-18.