Psychologist | Clinical Psychology

Dr. Heather Sassman, PHD

144 Lincoln Place Ct Ste 3, Belleville, Illinois, 62221-5878

About Dr. Heather Sassman

Dr. Heather Sassman is a psychologist based in Belleville, Illinois who is specialized in Clinical Psychology. Active license number of Dr. Heather Sassman is 071021005 for Clinical Psychology in Illinois. Her current practice location is 144 Lincoln Place Ct Ste 3, Belleville. Patients can contact her at 618-671-9283. Dr. Heather Sassman, PHD, specializes in Clinical Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1346734951.

Dr. Heather Sassman 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. Heather Sassman'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. Heather Sassman
Specialization Clinical Psychology
Credentials PHD
Gender Female
Practice Address: 144 Lincoln Place Ct Ste 3,
Belleville, IL - 62221-5878

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 Number1346734951
NPI Enumeration Date: 18 Jun, 2018
NPI Last Update On: 23 Jun, 2025

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. Heather Sassman are as mentioned below.

License NumberSpecializationStateStatus
071021005Clinical Psychology IllinoisPrimary
06219Clinical Psychology MarylandSecondary
2021036324Clinical Psychology MissouriSecondary

Mailing Address

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

Dr. Heather Sassman
144 Lincoln Place Ct Ste 3,
Belleville, IL - 62221-5878
Phone: 618-671-9283

Book an Appointment with Dr. Heather Sassman

To schedule an appointment, contact Dr. Heather Sassman at 144 Lincoln Place Ct Ste 3, Belleville, Illinois or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Heather Sassman:

Dr. Heather Sassman 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, Dr. Heather Sassman 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. Heather Sassman practices at 144 Lincoln Place Ct Ste 3, Belleville, Illinois, 62221-5878.

To schedule an appointment with Dr. Heather Sassman, please contact the office at 618-671-9283.

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