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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Peter A Johnson, SW

Social Worker in Janesville, WI · enumerated 2007.

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

National Provider Identifier

1750561908

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Registry record

Entity type Individual (Type 1)
Name Peter A Johnson
Credential SW
Sex Male
Practice address 35 S Main St, Janesville, WI, 53545
Phone (608) 757-5566
Enumeration date Nov 5, 2007
Last updated in NPPES Nov 5, 2007

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 3072-120 (WI) 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

What specialty is Peter Johnson?
Peter Johnson is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-05.