Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Esther Yi
Dentist in Sandusky, OH · enumerated 2024.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1669230629
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Registry record
Entity type Individual (Type 1)
Name Esther Yi
Sex Female
Practice address 1912 Hayes Ave, Sandusky, OH, 44870
Phone (617) 636-6828
Enumeration date Mar 13, 2024
Last updated in NPPES Jun 18, 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
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.
What specialty is Esther Yi?
Esther Yi is registered in NPPES with the primary taxonomy of Dentist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-06-18.