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

Dr. Timothy J O'Brien, PSYD

Individual provider Clinical Psychologist · NPI 1801449681

Dr. Timothy J O'Brien, PSYD is a Clinical Psychologist in Chicago, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2019
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

2265 W 113th Pl
Chicago, IL 60643-4104
Phone: (773) 683-3500
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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 071.010066 (IL)

Record details

NPI number1801449681
Entity typeIndividual (Type 1)
GenderMale
Credentials PSYD
Sole proprietorYes
NPI enumeratedJuly 19, 2019
Last updated in NPPESJanuary 8, 2025
Certification dateJanuary 8, 2025

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