1. Home
  2. Directory
  3. Washington
  4. Bellevue
  5. Optometrist
  6. NPI Profile

DR. WILLIAM JOSEPH PROTHERO O.D.
NPI 1144223405
Optometrist in Bellevue, WA

Active since May 31, 2005
1837 156TH AVE NE, STE 201, BELLEVUE, WA 98007(425) 643-2020(425) 643-0859 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. William Joseph Prothero O.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM JOSEPH PROTHERO O.D. (NPI 1144223405) is an individual optometrist in Bellevue, Washington, licensed in Washington (OD00001765) and active in the NPI registry since May 2005.

NPPES Registry Identity

NPI1144223405
Entity TypeIndividualMale
Primary Taxonomy152W00000X
Provider Legal NameDR. WILLIAM JOSEPH PROTHEROCredential: O.D.
Location Address1837 156TH AVE NE, STE 201Bellevue, WA 98007-4387
Mailing Address1837 156th Ave Ne, Ste 201Bellevue, WA 98007-4387 · (425) 643-2020 · Fax (425) 643-0859
Phone(425) 643-2020
Fax(425) 643-0859
Sole ProprietorNo
Enumeration DateMay 31, 2005
Last NPPES UpdateMarch 7, 2023
✔ NPI 1144223405 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
Licenses✔ Licensed in WA · OD00001765✔ Licensed in CA · 9074
Definition
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
1837 156TH AVE NE, Bellevue, WA 98007
Open in Google Maps ↗

Other Identifiers 3

Other0103457WA · Wa Workers Comp Id
Medicaid2016038WA
Other8469PRWA · Regence Wa Bs

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MARK CHRISTOPHER BARRY OD
Optometrist (Corneal and Contact Management)
1837 156TH AVE NE
BELLEVUE, WA 98007
King County (425) 643-2020
DR. DIVYA RAJU OD
Optometrist
1837 156TH AVE NE
BELLEVUE, WA 98007
King County (425) 643-2020
DR. MARY PEI-ANN CODAY M.D.
Ophthalmology
1837 156TH AVE NE, SUITE 201
BELLEVUE, WA 98007
King County (425) 643-2020
OVERLAKE EYECARE P S
Ophthalmology
1837 156TH AVE NE, SUITE 201
BELLEVUE, WA 98007
King County (425) 643-2020

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Prothero's NPI number?

The NPI number for William Prothero is 1144223405. It was assigned to this individual provider in the NPPES registry on May 31, 2005.

Where is William Prothero located?

William Prothero practices at 1837 156th Ave NE Ste 201, Bellevue, WA 98007. The listed phone number is (425) 643-2020.

What is William Prothero's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

When was this NPI record last updated?

The NPPES record for William Prothero was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.