Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Diane Zou
Optometrist in Waterford, CT · enumerated 2026.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1609700962
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Registry record
Entity type Individual (Type 1)
Name Diane Zou
Sex Female
Practice address 909 Hartford Tpke, Waterford, CT, 06385
Phone (860) 442-0380
Enumeration date Jun 11, 2026
Last updated in NPPES Jun 11, 2026
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
What specialty is Diane Zou?
Diane Zou is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → Brian Mann Optometrist · Waterford, CT NPI 1942301858 Crystal Vision, LLC Optometrist · Waterford, CT NPI 1760556393 Richard Frank General Practice Dentistry · Waterford, CT NPI 1417174939 Ajlr Dental Associates PC General Practice Dentistry · Waterford, CT NPI 1124355060 Jason Frasier Hearing Instrument Specialist · Waterford, CT NPI 1487236816
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-11.