Psychologist | Clinical Psychology

Jennifer K Hasak, PH.D.

777 S New Ballas Rd, Saint Louis, Missouri, 63141-8705

About Jennifer K Hasak

Jennifer K Hasak is a psychologist based in Saint Louis, Missouri who is specialized in Clinical Psychology. Active license number of Jennifer K Hasak is R0021 for Clinical Psychology in Missouri. Her current practice location is 777 S New Ballas Rd, Saint Louis. Patients can contact her at 314-569-0655 or can fax her at 314-569-0605. Jennifer K Hasak, PH.D., specializes in Clinical Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1881677524.

Jennifer K Hasak 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

Jennifer K Hasak'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 Jennifer K Hasak
Specialization Clinical Psychology
Credentials PH.D.
Gender Female
Practice Address: 777 S New Ballas Rd,
Saint Louis, MO - 63141-8705
Fax 314-569-0605

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 Number1881677524
NPI Enumeration Date: 28 Nov, 2005
NPI Last Update On: 09 Jul, 2007

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 Jennifer K Hasak are as mentioned below.

License NumberSpecializationStateStatus
R0021Clinical Psychology MissouriPrimary

Mailing Address

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

Jennifer K Hasak
313 Altus Pl,
Kirkwood, MO - 63122-5402
Phone: 314-965-6311
Fax: 314-569-0605

Book an Appointment with Jennifer K Hasak

To schedule an appointment, contact Jennifer K Hasak at 777 S New Ballas Rd, Saint Louis, Missouri or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Jennifer K Hasak:

Jennifer K Hasak 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, Jennifer K Hasak 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.

Jennifer K Hasak practices at 777 S New Ballas Rd, Saint Louis, Missouri, 63141-8705.

To schedule an appointment with Jennifer K Hasak, please contact the office at 314-569-0655.

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