Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Henry Gregg Martin, PHD

Individual provider Clinical Psychologist · NPI 1750339024

Dr. Henry Gregg Martin, PHD is a Clinical Psychologist in Marion, Indiana. Practices as a sole proprietor. Licensed in Indiana.

Licensed in
IN
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

330 N Wabash Ave Ste 330
Marion, IN 46952-2600
Phone: (765) 662-6035
Fax: (765) 662-9102
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 20010243 (IN)

Record details

NPI number1750339024
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedMay 5, 2006
Last updated in NPPESJuly 9, 2007

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