Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Deborah D Chew, OD
Optometrist in Fremont, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821057951
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Registry record
Entity type Individual (Type 1)
Name Deborah D Chew
Credential OD
Sex Female
Practice address 39355 California St, Suite 103, Fremont, CA, 94538
Phone (510) 744-2010
Fax (510) 744-2015
Enumeration date Mar 18, 2006
Last updated in NPPES Jul 6, 2016
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD 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
Where does Deborah Chew 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 Deborah Chew?
The National Provider Identifier (NPI) for Deborah Chew is 1821057951, 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 2016-07-06.