Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Sandra Chang, D.D.S.
Dentist in South San Francisco, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1548475502
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Registry record
Entity type Individual (Type 1)
Name Dr. Sandra Chang
Credential D.D.S.
Sex Female
Practice address 1405 Huntington Ave, Suite 213, South San Francisco, CA, 94080
Phone (650) 588-5822
Enumeration date May 13, 2007
Last updated in NPPES Dec 1, 2020
Taxonomy & licenses
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees.
About the DDS 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
How do I verify Sandra Chang's NPI record?
Cross-check NPI 1548475502 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1548475502 active?
Yes, as of the latest NPPES snapshot, NPI 1548475502 is active (record last updated 2020-12-01).
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-12-01.