Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
William T. Day, M.D.
Surgery Physician in Florence, OR · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1023067394
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Registry record
Entity type Individual (Type 1)
Name William T. Day
Credential M.D.
Sex Male
Practice address 330 9th St, Florence, OR, 97439
Phone (541) 997-2820
Fax (541) 902-7533
Enumeration date May 6, 2006
Last updated in NPPES Dec 16, 2009
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| MD16984 | Other | OR | STATE LICENSE |
| B64165 | Other | OR | UPIN |
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 Day's NPI record?
Cross-check NPI 1023067394 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1023067394 active?
Yes, as of the latest NPPES snapshot, NPI 1023067394 is active (record last updated 2009-12-16).
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-12-16.