Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Timothy E. Napier, M.D.
Surgery Physician in Mauston, WI · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1952398422
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Registry record
Entity type Individual (Type 1)
Name Timothy E. Napier
Credential M.D.
Sex Male
Practice address 1040 Division St, Mauston, WI, 53948
Phone (608) 847-5000
Enumeration date Sep 30, 2005
Last updated in NPPES Jan 21, 2013
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 |
|---|---|---|---|
| 31576700 | Medicaid | WI | - |
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 specialty is Timothy Napier?
Timothy Napier is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.
Other providers at this practice address
Browse all → Kimberley Sabey Family Medicine Physician · Mauston, WI NPI 1497749188 Rodney Malinowski Surgery Physician · Mauston, WI NPI 1699761130 Samuel Williams Physician Assistant · Mauston, WI NPI 1871580332 Dennis Ness Family Medicine Physician · Mauston, WI NPI 1598752065 James Speichinger Obstetrics & Gynecology Physician · Mauston, WI NPI 1700873270 Leon Radant Family Medicine Physician · Mauston, WI NPI 1982691457 Jane Peterson-Kattenbraker Family Medicine Physician · Mauston, WI NPI 1245227719 William Marculis Surgery Physician · Mauston, WI NPI 1306833876
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-01-21.