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Dr. Peter J Katz, MD

Dermatology Physician in Appleton, WI · enumerated 2008 · practices at Forefront Dermatology, S.C..

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

National Provider Identifier

1477725141

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Registry record

Entity type Individual (Type 1)
Name Dr. Peter J Katz
Credential MD
Sex Male
Practice address 3935 N Lightning Dr, Appleton, WI, 54913
Phone (920) 968-1790
Fax (920) 968-1794
Enumeration date Apr 2, 2008
Last updated in NPPES Aug 14, 2026

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 53184-20 (WI) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

Where does Peter Katz practice?
The practice location on file with NPPES is in Appleton, WI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Peter Katz?
The National Provider Identifier (NPI) for Peter Katz is 1477725141, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-08-14.