Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Vivian Chung
Optometrist in Waltham, MA · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1225500135
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Registry record
Entity type Individual (Type 1)
Name Vivian Chung
Sex Female
Practice address 289 Moody St, Waltham, MA, 02453
Phone (781) 894-2127
Fax (781) 894-1128
Enumeration date Dec 18, 2018
Last updated in NPPES Sep 13, 2025
Taxonomy & licenses
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 Vivian Chung practice?
The practice location on file with NPPES is in Waltham, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Vivian Chung?
The National Provider Identifier (NPI) for Vivian Chung is 1225500135, 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 2025-09-13.