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

Dr. Mark D Hammerly, PHD

Individual provider Psychologist · NPI 1144604174

Dr. Mark D Hammerly, PHD is a Psychologist in Liberty Township, Ohio. Licensed in Ohio. Registered with an NPI since 2015.

Licensed in
OH
In the registry since
2015
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 →

Practice location Address checks out

7999 Trinity Shore Cir
Liberty Township, OH 45044-8319
Phone: (513) 779-2906
Fax: (513) 779-2906
Show map & directions

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

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 6049 (OH)
Psychologist Taxonomy 103T00000X · Licence 6049 (OH)

Record details

NPI number1144604174
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedJuly 20, 2015
Last updated in NPPESJune 21, 2016
Mailing address7999 Trinity Shore Cir, Liberty Township, OH 45044-8319

Other providers in Liberty Township