Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Allison A Henderson Od and William E Henderson II

Optometrist in Chillicothe, OH · enumerated 2006 · authorized official Allison Henderson, Partner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1699838318

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Registry record

Entity type Organization (Type 2)

Legal business name Allison A Henderson Od and William E Henderson II

Practice address 612 Central Center, Chillicothe, OH, 45601

Phone (740) 774-2106

Fax (740) 774-2107

Enumeration date Dec 18, 2006

Last updated in NPPES Oct 15, 2018

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers Primary

332H00000X Eyewear Supplier Suppliers Secondary

Authorized official

Name Allison Henderson

Title Partner

Phone (740) 774-2106

Other identifiers

Identifier	Type	State	Issuer
3497809	Medicaid	OH	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Allison A Henderson Od and William E Henderson II?

The NPI for Allison A Henderson Od and William E Henderson II is 1699838318, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Allison A Henderson Od and William E Henderson II?

NPPES lists Allison Henderson (Partner) as the authorized official for this organization.

Providers at this address

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Keith Ames Optometrist · Chillicothe, OH NPI 1730249426

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-10-15.