Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Sylvia Y Ahn, RN
Registered Nurse in Chinle, AZ · enumerated 2012.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1164779963
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Registry record
Entity type Individual (Type 1)
Name Sylvia Y Ahn
Credential RN
Sex Female
Practice address Hwy191 Hospital Turnoff, Chinle, AZ, 86503
Phone (928) 674-7011
Enumeration date Aug 10, 2012
Last updated in NPPES Jan 7, 2014
Taxonomy & licenses
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam.
About the RN 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
Where does Sylvia Ahn practice?
The practice location on file with NPPES is in Chinle, AZ. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Sylvia Ahn?
The National Provider Identifier (NPI) for Sylvia Ahn is 1164779963, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-01-07.