Psychology Clinic | Clinical Psychology

Douglas B. Demerchant Psy.d., Llc

620 W Roosevelt Rd, Suite D1, Wheaton, Illinois, 60187-5086

About Douglas B. Demerchant Psy.d., Llc

Douglas B. Demerchant Psy.d., Llc is a psychology clinic located in Wheaton, Illinois. specializing in Clinical Psychology. The clinic is located at 620 W Roosevelt Rd, Suite D1, Wheaton, IL and can be reached at 630-462-1999. The authorized official for Douglas B. Demerchant Psy.d., Llc is Dr. Douglas Demerchant, who serves the clinic’s Owner. He/She can be contacted at 630-462-1999. The clinic’s primary license number in Illinois is 071003669 (Clinical) .
Douglas B. Demerchant Psy.d., Llc Clinic has mental health professionals specialized in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). Psychologists main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that psychologists can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Clinic Information

Douglas B. Demerchant Psy.d., Llc Clinic's specialty, address, contact phone number and fax are as below. Patients can contact the clinic at the given phone number for appointments.

Clinic Name Douglas B. Demerchant Psy.d., Llc
Specialization Clinical Psychology
Practice Address 620 W Roosevelt Rd, Suite D1
Wheaton, IL - 60187-5086
Fax 630-462-0069

Authorized/Official Person Profile

Officially authorized person to contact for any management issues or complaints for this clinic are as below. Person's position and contact details are also mentioned below.

Name Dr. Douglas Demerchant
Position Owner
Contact Number 630-462-1999

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 Number1548380405
NPI Enumeration Date: 01 Apr, 2007
NPI Last Update On: 29 Jan, 2011

Medical Licenses

Organizations can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Douglas B. Demerchant Psy.d., Llc are as mentioned below.
License NumberSpecializationStateStatus
071003669Clinical IllinoisPrimary

Mailing Address

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

Douglas B. Demerchant Psy.d., Llc
620 W Roosevelt Rd, Suite D1
Wheaton, IL - 60187-5086
Phone: 630-462-1999
Fax: 630-462-0069

Book an Appointment with Douglas B. Demerchant Psy.d., Llc

To schedule an appointment, contact Douglas B. Demerchant Psy.d., Llc at 620 W Roosevelt Rd, Suite D1, Wheaton, Illinois or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Douglas B. Demerchant Psy.d., Llc clinic:

Douglas B. Demerchant Psy.d., Llc is a psychology clinic specializing in Clinical Psychology.

Douglas B. Demerchant Psy.d., Llc is located at 620 W Roosevelt Rd, Suite D1, Wheaton, Illinois 60187-5086.

Patients can contact Douglas B. Demerchant Psy.d., Llc at 630-462-1999 for inquiries about its services and appointments.

Please contact Douglas B. Demerchant Psy.d., Llc directly to inquire about new-patient availability and appointment options.
* Availability may change.

Douglas B. Demerchant Psy.d., Llc has mental health professionals specialized in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). Psychologists main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that psychologists can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Patients can contact Douglas B. Demerchant Psy.d., Llc at 630-462-1999 to inquire about appointments, consultation requirements and available services.

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