Treatments · ADHD & neurodivergent care

ADHD therapy for adults in Mississauga and online.

If keeping up with everyday things takes more out of you than people realize, you can talk about it here. Daniella Simas Medeiros, RP (Qualifying), offers psychotherapy for adults with ADHD and other neurodivergent experiences. Meet in Mississauga or online from anywhere in Ontario. You do not need a diagnosis to start.

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Looking for support for a child or teen?

Our child and teen therapy page explains ADHD, autism and neurodivergence support, clinician age ranges and consultation options. Daniella's services on this page are for adults.

Explore child and teen ADHD and neurodivergence support

Clinicians offering ADHD and neurodivergence support.

Compare Shima, Daniella, Megan and Kristen. Each clinician works with different ages; ask about fit and available appointments during a free consultation.

Shima Tavasoli

Registered Psychotherapist (Qualifying) · CRPO #20331

Individual, couples, and family therapy, including children, teens, and adults navigating anxiety, depression, trauma, OCD, neurodivergence, relationships, or life transitions.

Daniella Simas Medeiros

Registered Psychotherapist (Qualifying) · CRPO #19387

Older teens (18+), adults and couples seeking affirming support for anxiety, burnout, trauma, relationships, life transitions, ADHD, or neurodivergence.

Megan Harvey

Registered Psychotherapist (Qualifying) · CRPO #18244

Individual therapy from age 5 through adulthood, including people with developmental disabilities. Support for anxiety, depression and relationship concerns, with experience working with autism, ADHD and OCD.

Kristen Lawrynowycz

Registered Psychotherapist (Qualifying) · CRPO #18172

Individual and couples therapy for teens and adults navigating anxiety, trauma, relationship patterns, grief, rejection sensitivity, self-esteem, or life transitions.

Fee
$160 to $180 · 50-minute individual session
Free consultation
15 minutes, no charge
Format
In-person in Mississauga, or secure online video via Jane
Approach
Neurodivergence-affirming, strengths-based; draws on attachment theory, CBT, EFT, and somatic therapy
Clinician
Daniella Simas Medeiros, RP (Qualifying), CRPO #19387
Receipts
Provided for extended-health reimbursement · HST-exempt

Your therapist

Meet Daniella.

Daniella Simas Medeiros

Daniella Simas Medeiros

Registered Psychotherapist (Qualifying), CRPO #19387

Daniella works with adults experiencing ADHD, anxiety, burnout, and life changes. Her background includes workplace mental health, advocacy, and mental health research. She holds a Master of Arts in Counselling Psychology from Yorkville University.

Her approach draws on CBT, attachment theory, EFT, and somatic-informed work. The consultation is a chance to ask how she would approach the difficulties you are facing and whether you would feel comfortable working together.

What you can bring

The everyday things that have become hard.

You decide what matters most. Some things you might want to work on include:

If you are still deciding whether therapy is the right next step, our guide to therapy and assessment for adult ADHD explains the differences and suggests questions to ask.

In a session

You can ask for a different way of doing things.

You can move, fidget, take notes, or ask to come back to a point you lost track of. You do not have to sit perfectly still to take part in therapy.

If keeping track of appointments is difficult, bring that up too. You can discuss reminders and routines while keeping the practice’s appointment and cancellation policies in mind.

Getting started

What happens next?

  1. Book a free 15-minute consultation. Ask Daniella about her approach, fees, and current appointment options. You can decide afterwards whether to book a session.
  2. Talk about what has been happening. In your first session, you can explain what you have tried and where you would like help. You do not need to prepare a full history.
  3. Choose a pace together. Individual sessions are 50 minutes. Discuss how often to meet and revisit the plan as your needs change.

Appointments are available in person in Mississauga or by secure video through Jane. If you are looking for support as a couple, visit our couples therapy page to learn about the clinicians and session options.

Therapy and assessment

What we can help with here.

This service is psychotherapy. We do not provide ADHD diagnosis or prescribe medication. If you want an assessment or advice about medication, speak with your family doctor or another qualified assessment or prescribing professional.

You can begin therapy while considering an assessment, after a diagnosis, or when you are unsure whether ADHD describes your experience. The consultation can help you decide whether this service fits what you are looking for.

Common questions about ADHD therapy.

Do I need an ADHD diagnosis to start therapy?

No. Many adults come to therapy suspecting ADHD without a formal diagnosis, and many come post-diagnosis still trying to make sense of what it means. Psychotherapists do not diagnose ADHD, but we can work with how it is showing up in your life and refer to a physician or psychologist if formal assessment becomes useful.

What does ADHD-affirming therapy mean here?

It means taking your needs seriously and choosing goals with you. You might work on starting tasks, managing strong emotions, or being less harsh with yourself. Practical tools, including CBT, can be adapted to what helps you and what you can realistically use between sessions.

I was diagnosed late in life. Is that something you work with?

Yes. You can talk about what a later diagnosis means to you, including relief, frustration, or questions about earlier experiences. You and Daniella can also work on the parts of daily life you want help with now.

Can you prescribe ADHD medication?

No. Registered Psychotherapists in Ontario do not prescribe medication. If medication is part of the conversation, we collaborate with your prescribing physician while we focus on the psychotherapy side.

Will online therapy work for someone with ADHD?

For many adults, yes. Some neurodivergent clients prefer virtual sessions for sensory reasons, commute energy, and the option to fidget, stand, or move during a session. We do not require a perfectly still face on camera. In-person sessions in Mississauga are also available.

How much do sessions cost?

Individual sessions are $160 to $180 for 50 minutes. Ask your insurer whether your plan covers Registered Psychotherapist (Qualifying) services before booking. A free 15-minute consultation is available to ask about fees and fit.

For plan-by-plan coverage details, direct billing notes, and how to submit a claim, see Fees & Insurance.

Further reading

Trusted Canadian resources.

Our own guide, therapy for adult ADHD in Ontario, covers what therapy helps with, what it does not do, and how assessment works.

The Centre for Addiction and Mental Health publishes evidence-informed information on adult ADHD, including how it can present in women and adults diagnosed later in life.

For information on the regulation of psychotherapists in Ontario, see the College of Registered Psychotherapists of Ontario. To learn more about the RP (Qualifying) category Daniella practices under, see CRPO registration categories.

The Centre for ADHD Awareness, Canada (CADDAC) offers Canadian-focused resources, advocacy, and a clinician directory.

Related services and next steps

What pairs with ADHD work.

Start with a free conversation.

A 15-minute consultation to ask questions and decide if the fit feels right.

Book a consultation

Online therapy across Ontario

Sessions are virtual province-wide, with local support for:

Toronto · Etobicoke · Mississauga · Brampton · Oakville · Burlington · Hamilton · Pickering + Ajax

Book a free 15-minute consult