Psychologist | Clinical Psychology

William Dean Billows, PHD HSPP

800 E Northwest Hwy Ste 106, Mount Prospect, Illinois, 60056-3457

About William Dean Billows

William Dean Billows is a psychologist based in Mount Prospect, Illinois who is specialized in Clinical Psychology. Active license number of William Dean Billows is 071.006777 for Clinical Psychology in Illinois. His current practice location is 800 E Northwest Hwy Ste 106, Mount Prospect. Patients can contact him at 847-909-9858 or can fax him at 847-299-4952. William Dean Billows, PHD HSPP, specializes in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1619969854.

William Dean Billows 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). His main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that he can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Practice Information

William Dean Billows'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 William Dean Billows
Specialization Clinical Psychology
Credentials PHD HSPP
Gender Male
Practice Address: 800 E Northwest Hwy Ste 106,
Mount Prospect, IL - 60056-3457
Fax 847-299-4952

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 Number1619969854
NPI Enumeration Date: 15 Aug, 2005
NPI Last Update On: 21 Jul, 2022

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 William Dean Billows are as mentioned below.

License NumberSpecializationStateStatus
071.006777Clinical 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.

William Dean Billows
800 E Northwest Hwy Ste 106,
Mount Prospect, IL - 60056-3457
Phone: 847-909-9858
Fax: 847-299-4952

Book an Appointment with William Dean Billows

To schedule an appointment, contact William Dean Billows at 800 E Northwest Hwy Ste 106, Mount Prospect, Illinois or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about William Dean Billows:

William Dean Billows is a psychologist specializing in Clinical Psychology. He 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). His main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that he can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Yes, William Dean Billows 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.

William Dean Billows practices at 800 E Northwest Hwy Ste 106, Mount Prospect, Illinois, 60056-3457.

To schedule an appointment with William Dean Billows, please contact the office at 847-909-9858.

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