Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory M. Rosner, M.D.

Surgery Physician in Cudahy, WI · enumerated 2006.

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

National Provider Identifier

1245318765

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Registry record

Entity type Individual (Type 1)

Name Gregory M. Rosner

Credential M.D.

Sex Male

Practice address 5900 S Lake Dr., Lakeshore Medical Clinic, Cudahy, WI, 53110

Phone (414) 489-4190

Fax (414) 489-4015

Enumeration date Nov 1, 2006

Last updated in NPPES Oct 4, 2012

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 170092 (NY) Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 32506-20 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Gregory Rosner practice?

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

What is the NPI number for Gregory Rosner?

The National Provider Identifier (NPI) for Gregory Rosner is 1245318765, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Allan Pasch Surgery Physician · Cudahy, WI NPI 1073513974 Rom Stevens Critical Care Medicine (Internal Medicine) Physician · Cudahy, WI NPI 1073596730 Sotirios Vasilopoulos Gastroenterology Physician · Cudahy, WI NPI 1568432912 Gina Buono Hospitalist Physician · Cudahy, WI NPI 1467411546 Lena Podolsky Nurse Practitioner · Cudahy, WI NPI 1316900301 Mathew Mathai Pulmonary Disease Physician · Cudahy, WI NPI 1104854363 Aurora Health Care Metro, Inc. Institutional Pharmacy · Cudahy, WI NPI 1073547295 Wendy Grubber Anatomic Pathology & Clinical Pathology Physician · Cudahy, WI NPI 1124053533

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-04.