Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Thomas Green, O.D.

Optometrist in Cambridge, OH · enumerated 2006 · practices at Cambridge Family Eye Care Inc.

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

National Provider Identifier

1689603045

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Registry record

Entity type Individual (Type 1)

Name Dr. William Thomas Green

Credential O.D.

Sex Male

Practice address 1335 Southgate Pkwy, Cambridge, OH, 43725

Phone (740) 439-1098

Fax (740) 439-3165

Enumeration date Jun 30, 2006

Last updated in NPPES Apr 29, 2008

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 3120/T800 (OH) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier	Type	State	Issuer
452082001	Other	OH	ADMINASTAR FEDERAL DMERC
9321631	Other	OH	MEDICARE GROUP NUMBER
410047823	Other	OH	RAILROAD MEDICARE
0354674/6566685	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

Where does William Green practice?

The practice location on file with NPPES is in Cambridge, OH. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for William Green?

The National Provider Identifier (NPI) for William Green is 1689603045, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Aaron Doudna Optometrist · Cambridge, OH NPI 1689604324 Cambridge Family Eye Care Inc Optometrist · Cambridge, OH NPI 1568646107 Nicholas Taflan Optometrist · Cambridge, OH NPI 1851739783

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-29.