NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Karen T. Walker, O. D., PC

Optometrist in Peoria, AZ · enumerated 2008 · authorized official Karen Walker, Optometrist/Ceo.

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

National Provider Identifier

1194994392

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Karen T. Walker, O. D., PC
Practice address 13470 N 83rd Ave, #300, Peoria, AZ, 85381
Phone (623) 451-8982
Fax (623) 594-0348
Enumeration date Feb 21, 2008
Last updated in NPPES May 6, 2013

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers · License 1589 (AZ) Primary

Authorized official

Name Karen Walker
Title Optometrist/Ceo
Phone (623) 594-0325

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 is Karen T. Walker, O. D., PC located?
The practice location on file with NPPES is in Peoria, AZ.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2013-05-06. Verify at npiregistry.cms.hhs.gov.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-05-06.