Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Richard Michael Rosenberg, MD

Gastroenterology Physician in Fond Du Lac, WI · enumerated 2006.

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

National Provider Identifier

1134205495

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Registry record

Entity type Individual (Type 1)

Name Mr. Richard Michael Rosenberg

Credential MD

Sex Male

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

Phone (920) 926-8570

Fax (920) 926-8923

Enumeration date Oct 30, 2006

Last updated in NPPES Sep 7, 2023

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 173008 (NY) Secondary

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 173008 (NY) Secondary

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 100915-875 (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
29596P	Other	NY	HIP
41F811	Other	NY	BCBS
0552202-009	Other	NY	CIGNA
NS1530	Other	NY	OXFORD
01177215	Medicaid	NY	-
539417	Other	NY	AETNA

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 Richard Rosenberg 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 Richard Rosenberg?

The National Provider Identifier (NPI) for Richard Rosenberg is 1134205495, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-09-07.