Photo of Mary Florence Sullivan, LMSW
Mary Florence Sullivan
LMSW
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Mary Florence Sullivan

LMSW

Verified by Psychology Today Verified by Psychology Today
Call Me
Let's Connect (718) 957-8047
Photo of Mary Florence Sullivan, LMSW
Available both in-person and online
200 Prospect Park West Brooklyn, NY 11215
You may be seeking therapy to better understand anxiety, trauma, or the impact of difficult life experiences. Many of the people I work with are navigating relationship challenges, moral distress, or the effects of gender-based or interpersonal violence. You may be looking for a therapist who is warm, collaborative, and thoughtful, and who brings an anti-oppressive, trauma-informed lens to support healing, reflection, and growth.
I am a licensed master social worker providing individual therapy to adolescents and adults. My approach is relational, trauma-informed, and strengths-based, drawing from CBT, IFS, mindfulness, and anti-oppressive frameworks. I support clients in understanding patterns, building insight, and developing tools for emotional regulation and resilience.
Beginning therapy can feel vulnerable, especially when you’ve been carrying a lot on your own. I strive to create a warm, compassionate, and collaborative space where you feel safe exploring your experiences at your own pace. If you’re looking for thoughtful, affirming care, I invite you to reach out and see if working together feels like a good fit.
Call or Mary Florence Sullivan now for a free 15 minute consultation - (718) 957-8047

My Practice at a Glance

Available both in-person and online

200 Prospect Park West

Brooklyn, NY 11215 map

(718) 957-8047
My website
I offer warm, trauma-informed therapy for adolescents and adults, grounded in compassion, reflection, and collaborative care.
Individual one-on-one therapy 
Let's Connect (718) 957-8047
Photo of Mary Florence Sullivan, LMSW

My Practice at a Glance

Available both in-person and online

200 Prospect Park West

Brooklyn, NY 11215 map

(718) 957-8047
My website
I offer warm, trauma-informed therapy for adolescents and adults, grounded in compassion, reflection, and collaborative care.
Individual one-on-one therapy 

Finances

Payment Methods

American Express, Check, Discover, Health Savings Account, Mastercard, Visa

Insurance

  • Out of Network
"
We are not in-network with any insurance plans, but if you have out-of-network coverage with BCBS, Aetna, or Cigna we can facilitate the submission of claims for reimbursement, or we can provide you with monthly invoices for you to submit to any insurance.
Photo of Mary Florence Sullivan, LMSW
Mary Florence Sullivan
LMSW
Call or for a free 15 minute consultation now - (718) 957-8047
"
We are not in-network with any insurance plans, but if you have out-of-network coverage with BCBS, Aetna, or Cigna we can facilitate the submission of claims for reimbursement, or we can provide you with monthly invoices for you to submit to any insurance.
Photo of Mary Florence Sullivan, LMSW
Mary Florence Sullivan
LMSW
Call or for a free 15 minute consultation now - (718) 957-8047

Qualifications

  • Verified by Psychology Today Licensed by State of New York / 100353 Mary Florence Sullivan
  • Education and Years In Practice

  • In Practice for 9 years
  • Attended Columbia University, LMSW, Graduated 2016
"
I am a licensed master social worker with experience supporting adolescents and adults through trauma-informed, relational therapy.
Photo of Mary Florence Sullivan, LMSW
Mary Florence Sullivan
LMSW
Call or for a free 15 minute consultation now - (718) 957-8047
"
I am a licensed master social worker with experience supporting adolescents and adults through trauma-informed, relational therapy.
Photo of Mary Florence Sullivan, LMSW
Mary Florence Sullivan
LMSW
Call or for a free 15 minute consultation now - (718) 957-8047

Specialties and Expertise

Expertise

  • Anxiety
  • Domestic Abuse
  • Domestic Violence
  • Impulse Control Disorders
  • Moral Distress
  • Trauma and PTSD
"
I specialize in anxiety, trauma, domestic and gender-based violence, and moral distress. My work supports individuals navigating the impact of past experiences, relationship challenges, and identity-related stressors with care that is affirming and strengths-based.
Photo of Mary Florence Sullivan, LMSW
Mary Florence Sullivan
LMSW
Call or for a free 15 minute consultation now - (718) 957-8047
"
I specialize in anxiety, trauma, domestic and gender-based violence, and moral distress. My work supports individuals navigating the impact of past experiences, relationship challenges, and identity-related stressors with care that is affirming and strengths-based.
Photo of Mary Florence Sullivan, LMSW
Mary Florence Sullivan
LMSW
Call or for a free 15 minute consultation now - (718) 957-8047


Client Focus

Age

Children (6 to 10)
Preteen
Teen
Adults

Participants

Individuals

Communities

Gay Allied
Lesbian Allied
Non-Binary Allied
Queer Allied

Age

Children (6 to 10)
Preteen
Teen
Adults

Participants

Individuals

Communities

Gay Allied
Lesbian Allied
Non-Binary Allied
Queer Allied

Treatment Approach

Types of Therapy

  • Cognitive Behavioral (CBT)
  • Integrative
  • Internal Family Systems (IFS)
  • Interpersonal
  • Mindfulness-Based (MBCT)
  • Relational
  • Strength-Based
  • Trauma Focused
"
I use relational, trauma-informed, and strengths-based approaches, drawing from CBT, Internal Family Systems (IFS), and mindfulness. Sessions emphasize safety, curiosity, and collaboration while supporting insight, emotional regulation, and meaningful change.
Photo of Mary Florence Sullivan, LMSW
Mary Florence Sullivan
LMSW
Call or for a free 15 minute consultation now - (718) 957-8047
"
I use relational, trauma-informed, and strengths-based approaches, drawing from CBT, Internal Family Systems (IFS), and mindfulness. Sessions emphasize safety, curiosity, and collaboration while supporting insight, emotional regulation, and meaningful change.
Photo of Mary Florence Sullivan, LMSW
Mary Florence Sullivan
LMSW
Call or for a free 15 minute consultation now - (718) 957-8047

Location

Primary Location

200 Prospect Park West

Brooklyn, NY 11215

(718) 957-8047

Nearby Areas

"
I offer warm, trauma-informed therapy for adolescents and adults, grounded in compassion, reflection, and collaborative care.
Photo of Mary Florence Sullivan, LMSW
Mary Florence Sullivan
LMSW
Call for a free consultation now - (718) 957-8047
"
I offer warm, trauma-informed therapy for adolescents and adults, grounded in compassion, reflection, and collaborative care.
Photo of Mary Florence Sullivan, LMSW
Mary Florence Sullivan
LMSW
Call for a free consultation now - (718) 957-8047