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

Individual provider Psychologist · NPI 1659453579

Dr. Mary Elizabeth Crois, PSYD is a Psychologist in Glen Ellyn, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2006
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

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Practice location Address checks out

331 Phillips Ave
Glen Ellyn, IL 60137-4938
Phone: (630) 881-3894
Fax: (630) 469-4945
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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 number1659453579
Entity typeIndividual (Type 1)
GenderFemale
Credentials PSYD
Sole proprietorYes
NPI enumeratedOctober 19, 2006
Last updated in NPPESJuly 8, 2007

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