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Cassandra Duff

Cassandra Duff

LMHC

Therapist · New York · 19+ years of experience

Calm, practical counseling for strong emotions

Continue with Cassandra

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  • Focus on anger
  • Client-centered
  • CBT and DBT

About Cassandra

Cassandra Duff is a licensed mental health counselor who focuses on helping people manage stress, anxiety, relationship strain, and anger. She brings a steady, practical approach to sessions and aims to create a respectful, compassionate space for clients. Cassandra emphasizes clear, direct conversation and a plan that fits each person’s situation.

With 19 years as a licensed mental health counselor, Cassandra draws on a range of clinical approaches to guide her work. She uses Client-Centered Therapy to make the conversation feel collaborative and respectful. She also incorporates Cognitive Behavioral Therapy to identify unhelpful thoughts and DBT skills to build emotional regulation and coping tools.

Clients come for a mix of concerns including depression, addictions, ADHD, bipolar mood concerns, career stress, intimacy issues, and coping with life changes. Cassandra also supports people navigating caregiver stress, commitment worries, infidelity, and financial strain. She pays attention to multicultural issues, shame and guilt, and struggles with isolation or obsessive thoughts.

Sessions are shaped to each person’s goals and pace. Cassandra offers straightforward strategies alongside space to process emotions. She encourages small, practical steps that can ease daily life and improve relationships over time.

Based in New York, Cassandra conducts sessions in English and asks people to complete a short matching questionnaire to get started. The therapy subscription can be canceled at any time, and scheduling is arranged after the initial matching process.

Areas of expertise

Primary focus

Stress, AnxietyRelationship issuesAnger managementDepression

Also works with

AddictionsIntimacy-related issuesCareer difficultiesBipolar disorderCoping with life changesCoachingADHD

Additional focus areas

Caregiver issues and stressCommitment issuesFamily problemsGuilt and shameInfidelityIsolation / lonelinessJealousyMoney and financial issuesMulticultural concernsObsessions, compulsions, and OCDParanoiaPrejudice and discriminationSelf-loveWomen's issues

Therapeutic approaches

Client-Centered TherapyCognitive Behavioral Therapy (CBT)Dialectical Behavior Therapy (DBT)

Experience

19+ years

Credentials

New York

Languages

English

How Cassandra Uses CBT, DBT, and Client-Centered Work Online

Cognitive Behavioral Therapy helps people spot and change patterns of thinking that feed anxiety, anger, or low mood. It usually involves practical exercises and clear steps to test new ways of thinking and behaving. Dialectical Behavior Therapy focuses on building skills for emotion regulation, distress tolerance, and interpersonal effectiveness, which can be helpful for intense emotions and relationship stress. Client-Centered Therapy emphasizes listening, respect, and working at the client’s pace to create goals that matter to them.

Finding the right mix of these approaches is part of the work. Cassandra will collaborate with each person to decide whether to lean more on CBT tasks, DBT skills practice, or a client-centered conversation. The choice is guided by the person’s goals, day-to-day needs, and what feels most useful in sessions.

Because session formats are not specified here, confirm the available online session options before booking. Many people find online counseling helps fit therapy into busy schedules and makes it easier to keep regular appointments. It can allow shorter check-ins, simpler scheduling around work, and fewer travel demands while still focusing on real skills for managing anger, stress, and relationships.

At a glance

Listed location
New York
Experience
19+ years
Credentials
LMHC
Languages
English
License (New York)
LMHC · No. 002541
NPI
1215089727

As listed by the therapist. You can check a license with the state board and an NPI with the national registry.

Frequently asked questions

What kinds of problems does Cassandra help with?

She works with stress, anxiety, anger, relationship strain, depression, addictions, ADHD, bipolar concerns, and related life changes.

How would you describe her therapeutic style?

Sessions are collaborative and straightforward, using client-centered conversation alongside CBT and DBT techniques as appropriate.

What is her professional background?

Cassandra has 19 years of experience as a licensed mental health counselor and has worked with a broad range of emotional and behavioral concerns.

Where is she licensed and located?

She is a New York licensed mental health counselor (LMHC) and is based in New York.

Which languages are used in sessions?

Sessions are offered in English.

Can people outside the U.S. work with her?

She does not accept international clients at this time.

How are fees and billing handled?

Cost varies with location and therapist scheduling; sessions use a subscription model that can be canceled at any time.

What do I do to begin therapy?

Click the Start Therapy button, complete a short matching questionnaire, and schedule sessions based on the therapist's availability.

Before you start

  • Online talk therapy is not a court-ordered or mandated anger-management course, and it does not provide attendance certificates.
  • Check that the location and license details above fit where you live.
  • If anyone is at risk of being harmed, contact emergency services or a domestic-abuse helpline first. See the support lines for the US, UK and Australia.
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