Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kevin P O'Brien, LCSW, LMFT

Clinical Social Worker in Milwaukee, WI · enumerated 2006.

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

National Provider Identifier

1063429520

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Registry record

Entity type Individual (Type 1)

Name Kevin P O'Brien

Credential LCSW, LMFT

Sex Male

Practice address 620 S 76th St, Milwaukee, WI, 53214

Phone (414) 453-1400

Fax (414) 453-2538

Enumeration date Aug 1, 2006

Last updated in NPPES Mar 13, 2020

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 691 (WI) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 162 (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
1063429520	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

How do I verify Kevin O'Brien's NPI record?

Cross-check NPI 1063429520 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1063429520 active?

Yes, as of the latest NPPES snapshot, NPI 1063429520 is active (record last updated 2020-03-13).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-03-13.