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

Dr. Gregg A Martin, PHD

Individual provider Psychologist · NPI 1174694558

Dr. Gregg A Martin, PHD is a Clinical Psychologist in Canton, Ohio. Graduated from Michigan State University College of Human Medicine in 1987, 39 years ago. Practices with Orthounited, Inc, a 89-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
39
Trained at
Michigan State University College of Human Medicine
Licensed in
OH
In the registry since
2006
Specialties on file
2
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

4760 Belpar St NW
Canton, OH 44718-3603
Phone: (330) 492-9200
Fax: (330) 492-5454
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 4547 (OH)
Rehabilitation Psychologist Taxonomy 103TR0400X · Licence 4547 (OH)

Record details

NPI number1174694558
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedNovember 10, 2006
Last updated in NPPESMarch 20, 2011

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF HUMAN MEDICINE
Graduated 1987 (39 years in practice)
Group practice Orthounited, Inc. — 89 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Canton