Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Kenneth Lowell Day, M.D.
Urology Physician in Wausau, WI · enumerated 2012.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1346505708
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Registry record
Entity type Individual (Type 1)
Name Kenneth Lowell Day
Credential M.D.
Sex Male
Practice address 2603 Teal Ave (Residence), Wausau, WI, 54401
Phone (715) 842-7019
Enumeration date Jul 11, 2012
Last updated in NPPES Jul 11, 2012
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
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
What is the NPI number for Kenneth Day?
The National Provider Identifier (NPI) for Kenneth Day is 1346505708, a Type 1 (individual) record in the CMS NPPES registry.
Where does Kenneth Day practice?
The practice location on file with NPPES is in Wausau, WI. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-07-11.