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ADHD Psychologist or Psychiatrist: Who Should You See?

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ADHD assessment

By Bandai Choi, Clinical Psychologist | Board-approved supervisor | Reviewed: August 2026 | 6 min read

An adult speaking with a health professional about ADHD assessment options.
Bandai Choi, Clinical Psychologist

Bandai Choi
Clinical Psychologist | Board-approved supervisor
Breathe-n-Smile Psychology, Essendon North, Footscray and telehealth across Australia

The best first contact depends on what you need next. If medication is your immediate question, a psychiatrist or other appropriate medical pathway is usually central. If you want a detailed psychological assessment, report or therapy support, a psychologist may be a sensible place to start. Many adults use more than one part of the system.

TL;DR
  • A psychiatrist is a medical doctor who can consider medication. A psychologist cannot prescribe medication.
  • A psychologist may provide a psychological assessment, formulation, report or therapy, depending on training and scope.
  • Ask what an assessment includes, what report you receive and whether another doctor may need their own assessment.

How the roles differ

Titles alone do not show whether a person regularly works with adults with ADHD. It is worth asking about the professional’s experience, assessment scope and the practical outcome you need.

Psychologist

May help with: Clinical interview, questionnaires, developmental history, psychological assessment, reports and therapy.

Important limit: Psychologists do not prescribe medication.

Psychiatrist

May help with: Medical and psychiatric assessment, diagnosis, medication decisions and review of medical or mental-health factors.

Important limit: Availability, assessment format and report requirements differ between practices.

GP

May help with: Initial discussion, referral options, physical-health review and care coordination. Some GPs may also have a role in ongoing prescribing under Victorian permit arrangements.

Important limit: As of August 2026, GPs do not have broad authority to diagnose and initiate ADHD medicines. The pathway is changing from September 2026 for an initial group of specially trained GPs.

Where to start

Start with the decision you are trying to make. If you are unsure whether ADHD is part of the picture, a careful assessment can consider childhood patterns, current impact and other explanations. A single online score cannot do this on its own. The adult ADHD screening questionnaire explains what a brief screener can and cannot indicate.

If medication is the immediate priority, ask a GP or psychiatrist about the medical pathway that fits your circumstances. If you are seeking a psychological assessment or report, first check how it may be used by another doctor. A report can provide useful evidence, but it does not guarantee another doctor’s diagnosis, prescribing decision or acceptance of the report.

This article is about choosing a starting point. For the broader difference between diagnostic assessment and ongoing therapy, see ADHD assessment versus therapy support. For a step-by-step explanation of a standard assessment pathway, see what happens in an adult ADHD assessment.

Questions before booking

Assessment can involve a substantial commitment of time and money. A brief administrative enquiry can prevent a mismatch.

  • Do you regularly assess ADHD in adults?
  • What interviews, questionnaires and supporting information are included?
  • Will I receive a written report, and what is it designed to support?
  • Can the assessment consider sleep, anxiety, trauma, mood and other overlapping factors?
  • Could another doctor require additional assessment later?
  • What are the full fees, cancellation terms and likely time frame?

The Victorian context

Medication decisions and stimulant prescribing are medical matters. As of August 2026, Victorian Department of Health policy says specialist involvement is necessary for ADHD diagnosis and ongoing management. A GP may generally be issued a permit to prescribe certain stimulants where there is evidence of specialist diagnosis and a specialist review within the required period.

The pathway is changing. From September 2026, an initial group of 150 GPs who complete the RACGP training program are expected to be able to diagnose and prescribe ADHD medicines for adults and children aged six years and over. This is not a general change for all GPs. Check with the GP and the Victorian Department of Health before booking an assessment solely for medication access.

There is no single correct door. A person may begin with a GP, psychologist or psychiatrist depending on their goals, availability and history. The practical aim is to avoid unnecessary duplication while leaving room for a careful assessment.

Common questions about ADHD assessment roles

Is a psychologist or psychiatrist better for ADHD?

Neither is automatically better. Choose according to the professional’s adult ADHD experience and the outcome you need. A psychiatrist is needed for specialist medical and medication decisions.

Can I see both?

Yes. Some people use a psychologist for assessment or therapy and a psychiatrist or GP for medical care. Ask each practice how information can be shared and whether any part of the assessment may need to be repeated.

Does diagnosis mean medication will be recommended?

No. Medication decisions are individual medical decisions. Diagnosis does not automatically lead to a particular treatment.

Considering an adult ADHD assessment?

You can review the practice’s assessment approach and fees before deciding whether to enquire. Please do not include sensitive clinical history in an ordinary web enquiry.

View ADHD assessment informationMake an enquiry

References and official guidance

  1. Australian Psychological Society. How is ADHD assessed?
  2. Australasian ADHD Professionals Association. ADHD diagnosis guideline.
  3. Victorian Department of Health. Stimulant permit requirements.
  4. Victorian Department of Health. ADHD care in general practice.

General information only. It does not replace individual psychological or medical advice.