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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Ellen Claire Pederson-Lewis, LCSW

Marriage & Family Therapist in Brookfield, WI · enumerated 2007.

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

National Provider Identifier

1649306317

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Registry record

Entity type Individual (Type 1)
Name Ms. Ellen Claire Pederson-Lewis
Credential LCSW
Sex Female
Practice address 675 N Brookfield Rd, Ste 101, Brookfield, WI, 53045
Phone (262) 641-9300
Fax (262) 641-9307
Enumeration date Feb 26, 2007
Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 1679-123 (WI) Secondary
106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 401-124 (WI) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

Other identifiers

Identifier Type State Issuer
39296900 Medicaid WI -

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 this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Ellen Pederson-Lewis?
Ellen Pederson-Lewis is registered in NPPES with the primary taxonomy of Marriage & Family Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.