NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Martin Merriel Harris, O.D.

Optometrist in Clarkston, WA · enumerated 2012.

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

National Provider Identifier

1568710200

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Martin Merriel Harris
Credential O.D.
Sex Male
Practice address 306 5th St, Clarkston, WA, 99403
Phone (208) 305-5060
Enumeration date Aug 28, 2012
Last updated in NPPES Aug 28, 2012

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License OD 60303118 (WA) 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 specialty is Martin Harris?
Martin Harris 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.
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.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-08-28.