Psychologist | Clinical Psychology | 30+ years experience

Dr. Frederika Colleen Theus, PSY.D.

825 N Cass Ave, Suite 311, Westmont, Illinois, 60559-1132

About Dr. Frederika Colleen Theus

Dr. Frederika Colleen Theus is a psychologist based in Westmont, Illinois with 30 years of experience in Clinical Psychology. She completed her graduation in 1996. She may accept the Medicare-approved amount. Patients may be billed for more than the Medicare deductible and coinsurance. Active license number of Dr. Frederika Colleen Theus is 071-005533 for Clinical Psychology in Illinois. Her current practice location is 825 N Cass Ave, Suite 311, Westmont. Patients can contact her at 773-412-1491. Dr. Frederika Colleen Theus, PSY.D., specializes in Clinical Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1114064334.

Dr. Frederika Colleen Theus 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

Dr. Frederika Colleen Theus'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 Dr. Frederika Colleen Theus
Specialization Clinical Psychology
Credentials PSY.D.
Accepts Medicare Assignment May Accept
Gender Female
Practice Address: 825 N Cass Ave, Suite 311
Westmont, IL - 60559-1132

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.

PAC ID 0042632200
Enrollment ID I20200617002300
NPI Number1114064334
NPI Enumeration Date: 30 Jan, 2007
NPI Last Update On: 02 Dec, 2015

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 Dr. Frederika Colleen Theus are as mentioned below.

License NumberSpecializationStateStatus
071-005533Clinical 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.

Dr. Frederika Colleen Theus
130 N Humphrey Ave, #2n
Oak Park, IL - 60302-2548
Phone: 773-412-1491

Book an Appointment with Dr. Frederika Colleen Theus

To schedule an appointment, contact Dr. Frederika Colleen Theus at 825 N Cass Ave, Suite 311, Westmont, Illinois or call the phone number listed below.

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Frequently Asked Questions

Below are some commonly asked questions about Dr. Frederika Colleen Theus:

Dr. Frederika Colleen Theus 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.

Dr. Frederika Colleen Theus has approximately 30 years of experience in Clinical Psychology.

Dr. Frederika Colleen Theus may accept Medicare assignment. Please contact the provider's office directly to verify Medicare participation and coverage details.

Yes, Dr. Frederika Colleen Theus 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.

Dr. Frederika Colleen Theus practices at 825 N Cass Ave, Suite 311, Westmont, Illinois, 60559-1132.

To schedule an appointment with Dr. Frederika Colleen Theus, please contact the office at 773-412-1491.

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