Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ralph Winkler Jr.

Surgical Assistant in Littleton, CO · enumerated 2013.

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

National Provider Identifier

1619314572

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Registry record

Entity type Individual (Type 1)

Name Ralph Winkler Jr.

Sex Male

Practice address Littleton, CO, 80121

Phone (720) 244-4163

Fax (844) 497-6400

Enumeration date May 31, 2013

Last updated in NPPES Oct 14, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

246ZS0410X Surgical Technologist Technologists, Technicians & Other Technical Service Providers · License SA0001732 (CO) Secondary

246ZC0007X Surgical Assistant Technologists, Technicians & Other Technical Service Providers · License SA.0001732 (CO) Primary

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 specialty is Ralph Winkler?

Ralph Winkler is registered in NPPES with the primary taxonomy of Surgical Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-14.