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

Elizabeth Bierbaum Clarke, LCSW

Clinical Social Worker in Evanston, IL · enumerated 2007 · practices at Third Wave Wellness, LLC.

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

National Provider Identifier

1417156738

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Registry record

Entity type Individual (Type 1)
Name Elizabeth Bierbaum Clarke
Credential LCSW
Sex Female
Practice address Evanston, IL, 60201
Phone (773) 484-7140
Enumeration date Jul 16, 2007
Last updated in NPPES Feb 20, 2020

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

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW 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.

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Frequently asked questions

What is the NPI number for Elizabeth Clarke?
The National Provider Identifier (NPI) for Elizabeth Clarke is 1417156738, a Type 1 (individual) record in the CMS NPPES registry.
Where does Elizabeth Clarke practice?
The practice location on file with NPPES is in Evanston, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-20.