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

Mr. John Greer Clark, PHD

Individual provider Audiologist · NPI 1558421784

Mr. John Greer Clark, PHD is an Audiologist in Middletown, Ohio. Practices as a sole proprietor. Licensed in Ohio.

Licensed in
OH
In the registry since
2006
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

1044 Summitt Dr
Middletown, OH 45042-3400
Phone: (513) 422-6516
Fax: (513) 422-5199
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Audiologist (primary) Taxonomy 231H00000X · Licence 03206 (OH)

Record details

NPI number1558421784
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedDecember 11, 2006
Last updated in NPPESOctober 19, 2012

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