Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Debra Muggler, M.D.

Internal Medicine Physician in Waukesha, WI · enumerated 2006.

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

National Provider Identifier

1942274055

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Registry record

Entity type Individual (Type 1)

Name Debra Muggler

Credential M.D.

Sex Female

Practice address N16w24131 Riverwood Dr, Pewaukee Clinic, Waukesha, WI, 53188

Phone (262) 696-5690

Enumeration date Feb 15, 2006

Last updated in NPPES Dec 27, 2017

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 41103 (WI) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
32567200	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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1942274055 active?

Yes, as of the latest NPPES snapshot, NPI 1942274055 is active (record last updated 2017-12-27).

How do I verify Debra Muggler's NPI record?

Cross-check NPI 1942274055 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 2017-12-27.