Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Timothy K. Ruder, O.D.

Optometrist in Madison, WI · enumerated 2011.

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

National Provider Identifier

1114214780

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Timothy K. Ruder

Credential O.D.

Sex Male

Practice address 1265 John Q Hammons Dr, Madison, WI, 53717

Phone (608) 251-4156

Enumeration date Jul 5, 2011

Last updated in NPPES Mar 21, 2014

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 3227 (WI) 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

What is the NPI number for Timothy Ruder?

The National Provider Identifier (NPI) for Timothy Ruder is 1114214780, a Type 1 (individual) record in the CMS NPPES registry.

Where does Timothy Ruder practice?

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

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-03-21.