Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. William Bert Berk Jr., O.D.
Optometrist in Happy Valley, OR · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1275630808
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Registry record
Entity type Individual (Type 1)
Name Dr. William Bert Berk Jr.
Credential O.D.
Sex Male
Practice address 13180 Se 169th Ave Ste 104, Happy Valley, OR, 97086
Phone (503) 698-2375
Fax (503) 698-3398
Enumeration date Sep 17, 2006
Last updated in NPPES Aug 14, 2018
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1508037607 | Other | - | ORGANIZATION (GROUP) NPI |
| R0000WDBCW | Other | - | MEDICARE GROUP PIN |
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
How do I verify William Berk's NPI record?
Cross-check NPI 1275630808 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1275630808 active?
Yes, as of the latest NPPES snapshot, NPI 1275630808 is active (record last updated 2018-08-14).
Other providers at this practice address
Browse all → Anne Berk Optometrist · Happy Valley, OR NPI 1609920701 Nancy Brock Optometrist · Happy Valley, OR NPI 1447306360 Double Vision Inc Optometrist · Happy Valley, OR NPI 1508037607 Yume Paige Optometrist · Happy Valley, OR NPI 1770069650 Shaina Chan Optometrist · Happy Valley, OR NPI 1578185005 Spectrum Eye Care LLC Optometrist · Happy Valley, OR NPI 1043969579
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-08-14.