Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Sarah Ann Wimmer
Optician in Butte, MT · enumerated 2026.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1538015243
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Registry record
Entity type Individual (Type 1)
Name Sarah Ann Wimmer
Sex Female
Practice address 2760 Elizabeth Warren Ave, Butte, MT, 59701
Phone (406) 494-3145
Fax (406) 541-3811
Enumeration date Mar 5, 2026
Last updated in NPPES Mar 5, 2026
Taxonomy & licenses
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
Where does Sarah Wimmer practice?
The practice location on file with NPPES is in Butte, MT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Sarah Wimmer?
The National Provider Identifier (NPI) for Sarah Wimmer is 1538015243, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-05.