Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Rebecca Oller

Clinical Social Worker in Algonquin, IL · enumerated 2022.

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

National Provider Identifier

1598411720

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Registry record

Entity type Individual (Type 1)

Name Rebecca Oller

Sex Female

Practice address 2200 Huntington Dr N, Algonquin, IL, 60102

Phone (630) 229-2070

Enumeration date Feb 25, 2022

Last updated in NPPES Feb 25, 2022

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers 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 Rebecca Oller?

The National Provider Identifier (NPI) for Rebecca Oller is 1598411720, a Type 1 (individual) record in the CMS NPPES registry.

Where does Rebecca Oller practice?

The practice location on file with NPPES is in Algonquin, 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 2022-02-25.