Welcome to HD Psychology

About Hamid Reza Dadgostar

Senior Psychologist

Hamid is the senior psychologist of the practice, is a registered Psychologist with Masters Degree. Hamid has been running a successful practice in the Sydney CBD for almost 20 years. Hamid provides psychological services in three languages – English, French, Persian (Farsi).

Hamid is registered with the Department of Health for public safety and is also accredited by Medicare Australia. He is also a registered supervisor and trainer of Intern psychologists. 

Hamid promotes mental health in rural communities across Australia, and has a key interest in the immigrant population, in particular international students. All the while supporting activities in the promotion of suicide prevention on many different levels.

Hamid is an avid motorcycle rider and can bee seen traversing Australia, seeking out adventures.

About Jeffrey Wong

Registered Psychologist

Jeffrey is a Psychologist and Clinical Psychology Registrar who holds general registration with the Psychology Board of Australia. He is an accredited Triple P (Positive Parenting Program) provider, certified CoupleCARE Educator, and certified Emotionally Focused Therapy (EFT) Couples Therapist.

Jeffrey has experience working with adolescents and adults in private and public settings, e.g. university, community and hospital mental health settings. He has worked with clients experiencing a range of difficulties including, anxiety disorders and depression, trauma- and stress-related conditions, substance misuse, and family conflicts. Jeffrey has an interest in supporting individuals from minority and marginalised groups e.g., immigrants and LGBTI communities.

He primarily uses Cognitive Behavioural Therapy (CBT) with a strength-based approach, and also draws from Compassion-Focused Therapy, and Acceptance and Commitment Therapy (mindfulness) approaches.

Jeffrey is from Hong Kong and speaks English, Mandarin, Cantonese. He enjoys sci-fi movies, scuba diving, and singing in the shower.

About Rhonda Debney

Registered psychologist

Rhonda is a registered psychologist with Masters degree. She is accredited by Medicare Australia, and is an associate member of the Australian Psychological Society (MAPS).

Furthermore, Rhonda has past experience as a Neurological Teacher Consultant in Psychiatric Disabilities and is a strong advocate for disadvantaged communities on many platforms. 

About Mercy Chen

Provisional psychologist

Mercy is a Provisional psychologist and Chinese international students liaison and media adviser PhD candidate at University of NSW. She has an Honours degree in psychology from the Peoples Republic of China (PRC).

She is actively engaged to address all issues concerning Chinese international students within the Australian Chinese community. Mercy advocates for this vulnerable population as they have an extra layer of stress being a student and also a non-native English speaking international student from a greatly different culture. These students can suffer from profound isolation leading to devastating consequences if not approached early enough, with conditions such as severe anxiety, depression and possible self-harm and suicide.

Mercy is heavily involved in reducing such bad outcomes by engaging local Chinese media and community.

About Brallian Hamidi

Provisional psychologist

Brallian Hamidi is a registered Provisional psychologist and PhD candidate. She holds a key interest in neuropsychology, involving psychometric assessments of Intelligence and psycho-diversity, such as autism spectrum and Attention Deficit Hyperactivity Disorder (ADHD).

Brallian is also passionate about working with children and fluent English and Persian (Farsi). 
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