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

Dr. Jessica Lynn Jandak, PSYD

Individual provider Clinical Psychologist · NPI 1043705130

Dr. Jessica Lynn Jandak, PSYD is a Clinical Psychologist in Downers Grove, Illinois. Qualified in 2016, 10 years ago. Practices with Advocate Health and Hospitals Corporation, a 3,079-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
10
Licensed in
IL
In the registry since
2018
Specialties on file
2
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

3743 Highland Ave Ste 2001
Downers Grove, IL 60515-1505
Phone: (630) 719-5454
Fax: (630) 719-1263
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1341 Warren Ave, Downers Grove, IL 60515-3437 — (630) 719-5454

Specialties & licences

Clinical Neuropsychologist (primary) Taxonomy 103G00000X
Clinical Psychologist Taxonomy 103TC0700X · Licence 071.010001 (IL)

Record details

NPI number1043705130
Entity typeIndividual (Type 1)
GenderFemale
Credentials PSYD
Sole proprietorNo
NPI enumeratedJune 29, 2018
Last updated in NPPESJuly 29, 2025
Certification dateJuly 29, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Advocate Health And Hospitals Corporation — 3079 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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