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

Dr. Gregory W. Bailey, PHD

Individual provider Clinical Psychologist · NPI 1821251935

Dr. Gregory W. Bailey, PHD is a Clinical Psychologist in Chicago, Illinois. Licensed in Illinois and Ohio. Registered with an NPI since 2008.

Licensed in
IL, OH
In the registry since
2008
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

180 N Michigan Ave 700
Chicago, IL 60601-7401
Phone: (312) 423-5651
Fax: (312) 726-4021
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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 071-006485 (IL)
Clinical Psychologist Taxonomy 103TC0700X · Licence 5920 (OH)

Record details

NPI number1821251935
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedJuly 8, 2008
Last updated in NPPESJuly 8, 2008

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