Psychologist | Clinical Psychology

Diane Theresa Hartjes

4801 W Peterson Ave, Suite 525, Chicago, Illinois, 60646-5713

About Diane Theresa Hartjes

Diane Theresa Hartjes is a psychologist based in Chicago, Illinois who is specialized in Clinical Psychology. Her current practice location is 4801 W Peterson Ave, Suite 525, Chicago. Patients can contact her at 773-286-3100. Diane Theresa Hartjes NPI number (Unique professional ID assigned by NPPES) is 1790810901.

Diane Theresa Hartjes is a mental health professional with highly specialized training in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). Her main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that she can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Practice Information

Diane Theresa Hartjes's specialty, credentials, practice address, contact phone number and fax are as below. Patients can call on the below given phone number for appointment.

Provider Name Diane Theresa Hartjes
Specialization Clinical Psychology
Gender Female
Practice Address: 4801 W Peterson Ave, Suite 525
Chicago, IL - 60646-5713

Professional Identification Codes

NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to healthcare providers in the United States by the Centers for Medicare and Medicaid Services (CMS). NPI details are as mentioned below.

NPI Number1790810901
NPI Enumeration Date: 21 Feb, 2007
NPI Last Update On: 08 Jul, 2007

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialties in the same state or different states. Related medical licenses for Diane Theresa Hartjes are as mentioned below.

License NumberSpecializationStateStatus
Clinical Psychology IllinoisPrimary

Mailing Address

Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned Practice address.

Diane Theresa Hartjes
4801 W Peterson Ave., Suite 525
Chicago, IL - 60646
Phone: 773-286-3100

Book an Appointment with Diane Theresa Hartjes

To schedule an appointment, contact Diane Theresa Hartjes at 4801 W Peterson Ave, Suite 525, Chicago, Illinois or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Diane Theresa Hartjes:

Diane Theresa Hartjes is a psychologist specializing in Clinical Psychology. She is a mental health professional with highly specialized training in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). Her main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that she can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Yes, Diane Theresa Hartjes is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.
*Availability may change. Please contact the office directly to ask about appointments.

Diane Theresa Hartjes practices at 4801 W Peterson Ave, Suite 525, Chicago, Illinois, 60646-5713.

To schedule an appointment with Diane Theresa Hartjes, please contact the office at 773-286-3100.

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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 14 September, 2026.