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

Dr. Harold David Quillian, PSYD

Individual provider Clinical Psychologist · NPI 1659589349

Dr. Harold David Quillian, PSYD is a Clinical Psychologist in Roswell, Georgia. Practices as a sole proprietor. Licensed in Georgia.

Licensed in
GA
In the registry since
2007
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

See every abbreviation used in this directory →

Practice location Address checks out

1175 Canton St Ste Two
Roswell, GA 30075-3616
Phone: (770) 594-0700
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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 PSY002304 (GA)

Record details

NPI number1659589349
Entity typeIndividual (Type 1)
GenderMale
Credentials PSYD
Sole proprietorYes
NPI enumeratedMay 18, 2007
Last updated in NPPESJuly 8, 2007

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