Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jeffrey D. Winkoski, M.D.

Family Medicine Physician in New Berlin, WI · enumerated 2006.

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

National Provider Identifier

1164495966

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Registry record

Entity type Individual (Type 1)

Name Jeffrey D. Winkoski

Credential M.D.

Sex Male

Practice address Prohealth Care Medical Centers-New Berlin, 13900 W National Avenue, New Berlin, WI, 53151

Phone (262) 928-4500

Fax (292) 928-4550

Enumeration date Feb 10, 2006

Last updated in NPPES Nov 9, 2011

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 36115 (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
32084700	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

What is the NPI number for Jeffrey Winkoski?

The National Provider Identifier (NPI) for Jeffrey Winkoski is 1164495966, a Type 1 (individual) record in the CMS NPPES registry.

Where does Jeffrey Winkoski practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-11-09.