Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Karen Traylor Walker, O.D.
Optometrist in Peoria, AZ · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1881700078
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Registry record
Entity type Individual (Type 1)
Name Dr. Karen Traylor Walker
Credential O.D.
Sex Female
Practice address 8613 W Malapai Dr, Peoria, AZ, 85345
Phone (623) 451-8982
Fax (623) 236-9648
Enumeration date Aug 22, 2006
Last updated in NPPES Feb 3, 2010
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 235824 | Medicaid | AZ | - |
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.
Frequently asked questions
What is the NPI number for Karen Walker?
The National Provider Identifier (NPI) for Karen Walker is 1881700078, a Type 1 (individual) record in the CMS NPPES registry.
Where does Karen Walker practice?
The practice location on file with NPPES is in Peoria, AZ. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-02-03.