Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dorothy Range, LSW

Social Worker in Blue Island, IL · enumerated 2018 · practices at The Thresholds.

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

National Provider Identifier

1518435817

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Registry record

Entity type Individual (Type 1)

Name Dorothy Range

Credential LSW

Sex Female

Practice address 12145 Western Ave, Blue Island, IL, 60406

Phone (773) 537-3930

Enumeration date Nov 5, 2018

Last updated in NPPES Nov 5, 2018

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 150.102117 (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

Is NPI 1518435817 active?

Yes, as of the latest NPPES snapshot, NPI 1518435817 is active (record last updated 2018-11-05).

How do I verify Dorothy Range's NPI record?

Cross-check NPI 1518435817 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Jonathan Cavanaugh Professional Counselor · Blue Island, IL NPI 1629374202 Colten Coffin Clinical Social Worker · Blue Island, IL NPI 1891208419 Ann Brekke Professional Counselor · Blue Island, IL NPI 1528697364 Rachel Menor Addiction (Substance Use Disorder) Counselor · Blue Island, IL NPI 1528679446 The Thresholds Mental Illness Community Based Residential Treatment Facility · Blue Island, IL NPI 1790588580

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-11-05.