Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Andrea L Viehmann
Social Worker in Nevada City, CA · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1881385003
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Registry record
Entity type Individual (Type 1)
Name Andrea L Viehmann
Sex Female
Practice address 24077 Ca-49, Nevada City, CA, 95959
Phone (530) 265-9057
Enumeration date May 18, 2023
Last updated in NPPES May 18, 2023
Taxonomy & licenses
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care · License 114274 (CA) Secondary
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 Andrea Viehmann practice?
The practice location on file with NPPES is in Nevada City, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Andrea Viehmann?
The National Provider Identifier (NPI) for Andrea Viehmann is 1881385003, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-05-18.