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

Ronald Winkelman, O.D.

Optometrist in Carson City, NV · enumerated 2007.

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

National Provider Identifier

1396897849

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Registry record

Entity type Individual (Type 1)

Name Ronald Winkelman

Credential O.D.

Sex Male

Practice address Carson City, NV, 89705

Phone (775) 267-5611

Fax (775) 267-9087

Enumeration date Jan 17, 2007

Last updated in NPPES Jun 13, 2008

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

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 429 (NV) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD 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 Ronald Winkelman practice?

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

What is the NPI number for Ronald Winkelman?

The National Provider Identifier (NPI) for Ronald Winkelman is 1396897849, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-13.