Dr. Matthew Walker, OD

Dr. Matthew Walker is a Optometrist provider (Optometrist) practicing in Pullman, WA, registered in the NPPES registry with NPI 1598286635 since 2017. The credential OD stands for Doctor of Optometry. Practices at Rolling Hills Eye Pllc (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1598286635
Entity type	Individual (Type 1)
Name	Dr. Matthew Walker
Credential	OD
Sex	Male
Practice address	Pullman, WA, 99163
Phone	5093343610
Enumeration date	2017-06-28
Last updated in NPPES	2023-09-17

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

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
152W00000X	Optometrist	Primary	OD60791705	WA

OD — Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Copy-ready billing details

Provider: Matthew Walker, OD
NPI: 1598286635
Taxonomy: 152W00000X (Optometrist)
Address: Pullman, WA, 99163

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1467230979	Rolling Hills Eye Pllc	Organization	Optometrist	Pullman, WA

Verify this record

Cross-check NPI 1598286635 against the authoritative CMS record: view Dr. Matthew Walker on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

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.

What specialty is Matthew Walker?

Matthew Walker is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2023-09-17.