Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

John W Barnhart OD Inc

Organization Optometrist · NPI 1104851278

John W Barnhart OD Inc is an Optometrist in Warren, Ohio. Licensed in Ohio. Registered with an NPI since 2006.

Licensed in
OH
In the registry since
2006
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

4620 Mahoning Ave
Warren, OH 44483-1419
Phone: (330) 847-9093
Fax: (330) 847-2225
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 4265 (OH)

Record details

NPI number1104851278
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official John Barnhart — President · (330) 847-9093
NPI enumeratedJuly 11, 2006
Last updated in NPPESOctober 7, 2008
Mailing address4620 Mahoning Ave, Warren, OH 44483-1419

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