Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Erin Hocking Ayers, O.D.
Optometrist in Mount Vernon, IL · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1063709731
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Registry record
Entity type Individual (Type 1)
Name Erin Hocking Ayers
Credential O.D.
Sex Female
Practice address 2900 Broadway St, Suite A, Mount Vernon, IL, 62864
Phone (618) 244-2777
Fax (618) 997-6250
Enumeration date Jul 1, 2011
Last updated in NPPES Apr 8, 2026
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 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 Erin Hocking Ayers?
Erin Hocking Ayers 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.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-08.