Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Grace Tseng, O.D.
Optometrist in Berkeley, CA · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1780208330
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Registry record
Entity type Individual (Type 1)
Name Grace Tseng
Credential O.D.
Sex Female
Practice address 200 Minor Hall University of California at Berkeley, Berkeley, CA, 94720
Phone (510) 642-0945
Enumeration date May 29, 2020
Last updated in NPPES Aug 14, 2020
Taxonomy & licenses
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
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
What is the NPI number for Grace Tseng?
The National Provider Identifier (NPI) for Grace Tseng is 1780208330, a Type 1 (individual) record in the CMS NPPES registry.
Where does Grace Tseng practice?
The practice location on file with NPPES is in Berkeley, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-14.