Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ethan Rosenke Schaefer

Anesthesiologist Assistant in Milwaukee, WI · enumerated 2018.

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

National Provider Identifier

1093284861

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Registry record

Entity type Individual (Type 1)

Name Ethan Rosenke Schaefer

Sex Male

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

Phone (414) 805-8700

Fax (414) 259-1522

Enumeration date Nov 21, 2018

Last updated in NPPES Feb 24, 2025

Taxonomy & licenses

367H00000X Anesthesiologist Assistant Physician Assistants & Advanced Practice Nursing Providers · License 129 (WI) Primary

Other identifiers

Identifier	Type	State	Issuer
1093284861	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

Where does Ethan Schaefer practice?

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

What is the NPI number for Ethan Schaefer?

The National Provider Identifier (NPI) for Ethan Schaefer is 1093284861, a Type 1 (individual) record in the CMS NPPES registry.

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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 John Nettrour Orthopaedic Surgery Physician · Milwaukee, WI NPI 1457355810 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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-24.