Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Susan Ann Oh, OD
Optometrist in San Carlos, CA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1831170463
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Registry record
Entity type Individual (Type 1)
Name Susan Ann Oh
Credential OD
Sex Female
Practice address 1234 Cherry St, San Carlos, CA, 94070
Phone (650) 593-1661
Fax (650) 595-5203
Enumeration date Nov 10, 2005
Last updated in NPPES Oct 26, 2015
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
Is NPI 1831170463 active?
Yes, as of the latest NPPES snapshot, NPI 1831170463 is active (record last updated 2015-10-26).
How do I verify Susan Oh's NPI record?
Cross-check NPI 1831170463 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Kristina Woodward Optometrist · San Carlos, CA NPI 1447231089 Carole Hong Optometrist · San Carlos, CA NPI 1982685509 Julie Kim Optometrist · San Carlos, CA NPI 1598746828 Carole L. Hong & Kristina Stasko, Ptrs Corneal and Contact Management Optometrist · San Carlos, CA NPI 1891976262 Carole L. Hong Od Inc. Optometrist · San Carlos, CA NPI 1952847352
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-10-26.