What patients are saying
Overall rating
5.00
Average wait time
5.00
Bedside manner
5.00
About Celine Du Tertre Delmarcq
Focus areas
Addiction / Substance Abuse
Depression
Post-Traumatic Stress Disorder (PTSD)
Adult Psychotherapy
Life Transition
Schizophrenia
Bereavement / Grief Counseling
Pediatric Psychotherapy
Clientele seen
Children (<13)
Adults (25-64)
Families
Teenagers (13-17)
Individuals
Young adults (18-24)
Couples
Treatment approaches
Cognitive Behavioral (CBT)
Expressive Arts
Culturally Sensitive
Family Systems
Existential
Integrative
Identity
Gender
FemaleLanguages spoken
English, French
Getting to know Celine Du Tertre Delmarcq
**PLEASE NOTE** As a new patient, you will only be able to book for a free, 25-min virtual consultation. If it feels like a good fit, we'll be able to book full sessions in-person or virtually thereafter.
Harmonic Thread Psychotherapy offers integrative and holistic mental health care for children and adults in the heart of Brooklyn, and is a certified Ketamine Assisted Psychotherapy provider. Specializing in Addictions, Grief, Trauma, Relational Conflict, and Existential Distress, sessions blend evidence-based therapies like IFS, CBT, and Narrative Therapies with Somatic Processing and Mindfulness Practices. Vocal Activation services are also available.
Whether you’re feeling lost, overwhelmed, or just longing for a place to exhale and be fully seen, therapy can be a path back toward yourself. If this resonates, I invite you to reach out. Together, we can weave the patterned tapestry of your life- the threads of hurt, the threads of hope- and find a Harmonic Thread home.
What should a new client know about working with you?
You’ve taken a courageous step towards understanding your challenges, seeking peace in the face of uncertainty, and reclaiming your sovereignty. Whether you’re navigating grief, trauma, addiction, existential dread, or a quiet ache you can't quite name, I understand the strain felt when parts of you seem so fragmented and disconnected. The good news is: you are not broken, and all parts of you are welcome here. You don’t have to stay stuck in old narratives that no longer serve you. I believe in your capacity to rewrite your story in a way that aligns with your values, fosters connection, reclaims your voice, and restores a sense of wholeness.
My approach is collaborative and integrative, holistically incorporating mind, body, spirit, and all things relational. I blend CBT, Existential, IFS, and Narrative Therapies, with Somatic processing and Buddhist philosophy in a way that is grounded in compassion, curiosity, and thoughtful inquiry. I also specialize in vocal activation and Psychedelic-Assisted Psychotherapy.
You don’t have to hold it all alone. Whether you’re feeling lost, overwhelmed, or just longing for a place to exhale and be fully seen, therapy can be a path back toward yourself. If this resonates, I invite you to reach out. Together, we can weave the patterned tapestry of your life- the threads of hurt, the threads of hope- and find your Harmonic Thread home.
What is your typical process for working with clients?
**Please note that as a new patient, you will only be able to book for a free, 25-min virtual consultation. If it feels like a good fit, we'll be able to book full sessions in-person or virtually thereafter.**
First sessions typically involves a psychological intake and exploration of current challenges. The early weeks are about creating a solid, safe container, building the therapeutic relationship, and setting goals, before then diving deeper, building coping skills, and addressing root issues.
Therapy is rarely linear — some sessions may feel emotional and deeply internal, others more structured and practical. Depending on your needs, we might:
- Process and release unresolved emotions or trauma
- Identify and shift limiting beliefs or patterns
- Re-author your story through narrative therapy
- Work with parts of self (IFS or R-CS) and relational dynamics
- Integrate creative or somatic practices like vocal activation, breathwork, or dream analysis.
When working with children, I focus on play therapy, building healthy coping skills, and strengthening adaptive relational dynamics.
As we work together, you may notice:
- Feeling more connected to yourself and your values
- More resilience in relationships and life challenges
- A deeper mind-body-soul alignment
- Confidence in your ability to find regulate when life feels overwhelming
We’ll periodically reflect on what’s shifting and whether your goals have evolved.
Typically clients benefit from weekly 50-55 minute sessions, but this can vary based on need, such as twice a week or every other week. With time, trust, and commitment, most clients see improvements within just a few months, but treatment period is usually undefined, with some clients engaging for as little as 6 months and others for years.
Is this doctor in your insurance network?
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In-network insurances
Celine Du Tertre Delmarcq, LMHC has +2 in-network plans.
Don’t see your insurance?
It’s common for mental health providers to be out-of-network. Many insurance plans offer out-of-network coverage, so you may get partially reimbursed. Learn more
Out-of-pocket fees and assistance
Initial session: $225 for 60 minutes
Ongoing session: $225 for 53 minutes
- Sliding scale: Offers lower out-of-pocket fees on an individual basis, typically based on your ability to pay
- Files your insurance claim: You pay the session fee upfront and the provider files the claim for you, so you can get reimbursed directly without worrying about the paperwork
More information on payments and coverage
I can provide and submit superbills to your insurance with out of network benefits for full or partial reimbursement.
Popular visit reasons
Depression
New Patient Visit
Pediatric Attention-Deficit / Hyperactivity Disorder (ADHD)
Pediatric Sexual Abuse Counseling
Psychotherapy
Psychotherapy Intake / Initial Visit
Sleep Problems
Young Adult Issues
Depression
New Patient Visit
Pediatric Attention-Deficit / Hyperactivity Disorder (ADHD)
Pediatric Sexual Abuse Counseling
Office location
Celine Du Tertre Delmarcq, LMHC also offers online video visits for patients
Education and background
Practice names
Education and training
- New York University, Master's in Counseling Psychology
- Pace University (Bachelor's)
Professional memberships
- American Mental Health Counselors Association
- American Psychological Association
NPI number
1952140055
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
5.00
Wait time
5.00
Bedside manner
5.00
Your trust is our top concern, so providers can't pay to alter or remove reviews. We also don't publish reviews that contain any private patient health information. Learn more here
1 review
Most relevant
Less than 3 months agoInitials hiddenVideo visit
How soon can I make an appointment with Celine Du Tertre Delmarcq?
Generally, Celine Du Tertre Delmarcq has appointments available on Zocdoc within 1 week. You can see Celine Du Tertre Delmarcq's earliest availability on Zocdoc and make an appointment online.
Is Celine Du Tertre Delmarcq accepting new patients?
Celine Du Tertre Delmarcq generally accepts new patients on Zocdoc. You can see Celine Du Tertre Delmarcq's earliest availability on Zocdoc and schedule an appointment online.
Does Celine Du Tertre Delmarcq accept my insurance?
Choose your insurance plan to verify if Celine Du Tertre Delmarcq is in-network.
Can I make an appointment with Celine Du Tertre Delmarcq online?
Yes, you can make an appointment online with Celine Du Tertre Delmarcq using Zocdoc. It’s simple, secure, and free.
What practice does Celine Du Tertre Delmarcq work with?
Where is Celine Du Tertre Delmarcq's office located?
Celine Du Tertre Delmarcq has 2 office locations in Brooklyn, view full addresses on Celine Du Tertre Delmarcq's profile.
What are common reasons for patients to see Celine Du Tertre Delmarcq?
Celine Du Tertre Delmarcq frequently sees patients for Depression, New Patient Visit, Psychotherapy, Psychotherapy Intake / Initial Visit, and Sleep Problems. You can see other visit reasons for Celine Du Tertre Delmarcq on their profile.
What languages does Celine Du Tertre Delmarcq speak?
Celine Du Tertre Delmarcq speaks English and French.
How do patients rate Celine Du Tertre Delmarcq in reviews?
1 patients have reviewed Celine Du Tertre Delmarcq. The overall rating for this doctor is 5/5. They have a 5/5 rating for bedside manner and a 5/5 rating for wait time. You can read individual reviews and ratings on their profile.