Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John F Nettrour, M.D.

Orthopaedic Surgery Physician in Milwaukee, WI · enumerated 2005.

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

National Provider Identifier

1457355810

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Registry record

Entity type Individual (Type 1)

Name John F Nettrour

Credential M.D.

Sex Male

Practice address 9200 W Wisconsin Ave, Milwaukee, WI, 53226

Phone (414) 805-7400

Fax (414) 805-7388

Enumeration date Jun 13, 2005

Last updated in NPPES Jan 19, 2023

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 2017020735 (MO) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 81152 (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
1209171	Medicaid	IA	-
577518300	Medicaid	MN	-

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

What is the NPI number for John Nettrour?

The National Provider Identifier (NPI) for John Nettrour is 1457355810, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Nettrour practice?

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

Other providers at this practice address

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Anthony De Franco Cardiovascular Disease Physician · Milwaukee, WI NPI 1215930391 Froedtert Memorial Lutheran Hospital, Inc. General Acute Care Hospital · Milwaukee, WI NPI 1255334173 Melissa Anglin Anesthesiology Physician · Milwaukee, WI NPI 1174522130 Wisconsin Diagnostic Laboratories LLC Clinical Medical Laboratory · Milwaukee, WI NPI 1932109675 Hakki Bolukoglu Cardiovascular Disease Physician · Milwaukee, WI NPI 1356341176 Susan Skaros Medical Physician Assistant · Milwaukee, WI NPI 1699775262 Gary Scherr Anatomic Pathology & Clinical Pathology Physician · Milwaukee, WI NPI 1083614341 Ty Dunn Transplant Surgery Physician · Milwaukee, WI NPI 1164423893

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-01-19.