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

Individual provider Psychologist · NPI 1245387430

Dr. Diana F. Mercer, PHD is a Psychologist in Chicago, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2007
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

4801 W Peterson Ave Ste 612
Chicago, IL 60646-5713
Phone: (773) 774-0180
Fax: (773) 777-5140
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X (IL)

Record details

NPI number1245387430
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedJanuary 3, 2007
Last updated in NPPESJuly 8, 2007

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