Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Karin Woo Rardin, OD
Optometrist in Fremont, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1457320921
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Registry record
Entity type Individual (Type 1)
Name Karin Woo Rardin
Credential OD
Sex Female
Practice address 39355 California St, Ste 103, Fremont, CA, 94538
Phone (510) 744-2010
Fax (510) 744-2015
Enumeration date Mar 16, 2006
Last updated in NPPES Dec 16, 2024
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| GR0022890 | Medicaid | CA | - |
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 Karin Rardin practice?
The practice location on file with NPPES is in Fremont, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Karin Rardin?
The National Provider Identifier (NPI) for Karin Rardin is 1457320921, 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 2024-12-16.