Douglas B. Demerchant Psy.d., Llc
Clinical - Psychology Clinic
620 W Roosevelt Rd, Suite D1, Wheaton
Illinois, 60187-5086
630-462-1999 630-462-0069
Maps & DirectionsDouglas B. Demerchant Psy.d., Llc is a Clinical - Psychology Clinic in Wheaton, Illinois. It is located at 620 W Roosevelt Rd, Suite D1, Wheaton, IL and its contact number is 630-462-1999. The authorized person for Douglas B. Demerchant Psy.d., Llc is Dr. Douglas Demerchant
who is Owner of the clinic and his/her contact number is 630-462-1999. The primary license number for Douglas B. Demerchant Psy.d., Llc is 071003669 (Clinical) in Illinois.
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.
Complete Clinic Profile:
Douglas B. Demerchant Psy.d., Llc Clinic speciality, address, contact phone number and fax are as below.
Patients can call on the below given phone number for appointments.
| Name: | Douglas B. Demerchant Psy.d., Llc |
| Specialization: | Clinical Psychology |
| Clinic Address: | 620 W Roosevelt Rd, Suite D1, Wheaton,
Illinois, 60187-5086 |
| Phone: | 630-462-1999 |
| 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 health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS).
NPI details for Douglas B. Demerchant Psy.d., Llc clinic are as mentioned below.
| NPI Number: | 1548380405 |
| 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.
| Specialization | License Number | State | Status | |
| Clinical | 071003669 | Illinois | Primary | |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | Douglas B. Demerchant Psy.d., Llc
620 W Roosevelt Rd, Suite D1
Wheaton, Illinois |
| Zip: | 60187-5086 |
| Phone Number: | 630-462-1999 |
| Fax Number: | 630-462-0069 |
Patients can reach Douglas B. Demerchant Psy.d., Llc at
620 W Roosevelt Rd, Suite D1, Wheaton, Illinois or can
call to book an appointment on 630-462-1999.
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Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 13 October, 2025.