NPI Portal NPI Lookup & Verification

William B Britt

William B Britt is a healthcare organization registered as Optometrist in Boulder, CO, holding Type 2 (organization) NPI 1063600484 since 2007. The authorized official on file is William Britt, Owner Optometrist.

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NPI 1063600484
Entity type Organization (Type 2)
Legal business name William B Britt
Practice address 805 S BROADWAY ST, STE 101, Boulder, CO, 80305
Phone 3034944449
Fax 3034995003
Enumeration date 2007-10-10
Last updated in NPPES 2007-11-07

Authorized official

Name William Britt
Title Owner Optometrist
Phone 3034944449

Taxonomy & classification

Taxonomy code Specialty Primary License State
152W00000X Optometrist Primary 1153 CO
Copy-ready billing details
Provider: William B Britt
NPI: 1063600484
Taxonomy: 152W00000X (Optometrist)
Address: 805 S BROADWAY ST, STE 101, Boulder, CO, 80305

Providers at this address

NPI Name Type Specialty Location
1558344010 Terri Rosenbaum Individual Obstetrics & Gynecology Physician Boulder, CO
1144254335 Jana Ikeda Individual General Practice Dentistry Boulder, CO
1851405963 Jeanette Hrubes Individual Physical Therapist Boulder, CO
1639353188 Sunshine Wholistic Services LLC Organization Family Medicine Physician Boulder, CO
1528297439 Rebecca Barnes Individual Medical Physician Assistant Boulder, CO
1962726927 Portercare Adventist Health System Organization Family Medicine Physician Boulder, CO
1386053221 Mitchell Shuman Individual Physical Therapist Boulder, CO
1518348580 Portercare Adventist Health System Organization Obstetrics & Gynecology Physician Boulder, CO

Verify this record

Cross-check NPI 1063600484 against the authoritative CMS record: view William B Britt 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

What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is William B Britt?
William B Britt is registered in NPPES as a Optometrist (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-10. Provider record last updated 2007-11-07.