Psychologist | Clinical Child & Adolescent Psychology

Mary Ann Hession, PHD

4650 W Sunset Blvd, Ms# 53, Los Angeles, California, 90027-6062

About Mary Ann Hession

Mary Ann Hession is a psychologist based in Los Angeles, California who is specialized in Clinical Child & Adolescent Psychology. Active license number of Mary Ann Hession is PSY12940 for Clinical Child & Adolescent Psychology in California. Her current practice location is 4650 W Sunset Blvd, Ms# 53, Los Angeles. Patients can contact her at 323-669-2350 or can fax her at 323-671-1502. Mary Ann Hession, PHD, specializes in Clinical Child & Adolescent Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1598859779.

Mary Ann Hession analyse the cognitive, social and emotional development of children. Typically, she look at development from the prenatal period through adolescence. Some of the traditional areas of interest include genetics, language development, learning disabilities, personality, gender roles, cognitive development, sexual development and social growth.
Clinical Child Psychologist responsibilities includes task like assessing and treating learning or developmental disabilities or delays; Working with children and their caregivers to manage behavioral issues; Administering psychological tests; Conducting scientific research on childhood development; Working with a health care team to create a unique treatment plan for a client.

Practice Information

Mary Ann Hession'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 Mary Ann Hession
Specialization Clinical Child & Adolescent Psychology
Credentials PHD
Gender Female
Practice Address: 4650 W Sunset Blvd, Ms# 53
Los Angeles, CA - 90027-6062
Fax 323-671-1502

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 Number1598859779
NPI Enumeration Date: 03 Oct, 2006
NPI Last Update On: 08 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 Mary Ann Hession are as mentioned below.

License NumberSpecializationStateStatus
PSY12940Clinical Child & Adolescent Psychology CaliforniaPrimary

Other Medical Identifiers

Other professional identifiers associated with Mary Ann Hession such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
IdentifierTypeStateIssuer
PSY129400MedicaidCalifornia

Mailing Address

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

Mary Ann Hession
6430 W Sunset Blvd, Suite 600
Los Angeles, CA - 90028-7901
Phone: 323-669-2337
Fax: 323-644-8488

Book an Appointment with Mary Ann Hession

To schedule an appointment, contact Mary Ann Hession at 4650 W Sunset Blvd, Ms# 53, Los Angeles, California or call the phone number listed below.

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Frequently Asked Questions

Below are some commonly asked questions about Mary Ann Hession:

Mary Ann Hession is a psychologist specializing in Clinical Child & Adolescent Psychology. She analyse the cognitive, social and emotional development of children. Typically, she look at development from the prenatal period through adolescence. Some of the traditional areas of interest include genetics, language development, learning disabilities, personality, gender roles, cognitive development, sexual development and social growth.
Clinical Child Psychologist responsibilities includes task like assessing and treating learning or developmental disabilities or delays; Working with children and their caregivers to manage behavioral issues; Administering psychological tests; Conducting scientific research on childhood development; Working with a health care team to create a unique treatment plan for a client.

Yes, Mary Ann Hession 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.

Mary Ann Hession practices at 4650 W Sunset Blvd, Ms# 53, Los Angeles, California, 90027-6062.

To schedule an appointment with Mary Ann Hession, please contact the office at 323-669-2350.

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