NPI Portal NPI Lookup & Verification

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

Mr. Patrick James Kerwin, MA, LLP

Counseling Psychologist in Westland, MI · enumerated 2009.

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

National Provider Identifier

1821325283

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Registry record

Entity type Individual (Type 1)
Name Mr. Patrick James Kerwin
Credential MA, LLP
Sex Male
Practice address Westland, MI, 48185
Phone (734) 425-0636
Enumeration date Nov 5, 2009
Last updated in NPPES Mar 23, 2010

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

Taxonomy & licenses

103TC1900X Counseling Psychologist Behavioral Health & Social Service Providers · License 6301013960 (MI) Primary
103T00000X Psychologist Behavioral Health & Social Service Providers · License 6301013960 (MI) Secondary
103TF0000X Family Psychologist Behavioral Health & Social Service Providers · License 6301013960 (MI) Secondary

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 1821325283 active?
Yes, as of the latest NPPES snapshot, NPI 1821325283 is active (record last updated 2010-03-23).
How do I verify Patrick Kerwin's NPI record?
Cross-check NPI 1821325283 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-03-23.