Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Unknown Siena, O.D.
Optometrist in Show Low, AZ · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1831262096
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Registry record
Entity type Individual (Type 1)
Name Dr. Unknown Siena
Credential O.D.
Sex Female
Practice address 5401 S White Mountain Rd, Show Low, AZ, 85901
Phone (928) 532-1547
Fax (928) 532-1549
Enumeration date Nov 16, 2006
Last updated in NPPES Feb 26, 2010
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
What is the NPI number for Unknown Siena?
The National Provider Identifier (NPI) for Unknown Siena is 1831262096, a Type 1 (individual) record in the CMS NPPES registry.
Where does Unknown Siena practice?
The practice location on file with NPPES is in Show Low, AZ. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-02-26.