Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Radu E Pirvanescu, MD

Internal Medicine Physician in Fond Du Lac, WI · enumerated 2006.

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

National Provider Identifier

1174631063

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Registry record

Entity type Individual (Type 1)

Name Radu E Pirvanescu

Credential MD

Sex Male

Practice address 420 E Division St, Fond Du Lac, WI, 54935

Phone (920) 926-8420

Fax (920) 926-8913

Enumeration date Aug 29, 2006

Last updated in NPPES Oct 27, 2020

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 45595 (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
P00941497	Other	WI	RR MEDICARE

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

Where does Radu Pirvanescu practice?

The practice location on file with NPPES is in Fond Du Lac, WI. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Radu Pirvanescu?

The National Provider Identifier (NPI) for Radu Pirvanescu is 1174631063, 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 2020-10-27.