Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. William R Pierre, OD TPA
Optometrist in Crandon, WI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1114935095
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Registry record
Entity type Individual (Type 1)
Name Dr. William R Pierre
Credential OD TPA
Sex Male
Practice address 8201 Mishkosen Dr, Forest County Potawatomi Health & Wellness Center, Crandon, WI, 54520
Phone (715) 478-4300
Fax (715) 478-4490
Enumeration date Aug 4, 2006
Last updated in NPPES Dec 10, 2020
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 38523300 | Medicaid | WI | - |
| 72023 | Other | WI | SECURITY HEALTH PLAN |
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
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 William Pierre?
William Pierre 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 2026-07-13. Provider record last updated 2020-12-10.