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Therapist in Garden City, New York Maria Ostermann, Therapist

Gender Identity: Female (She/Her)

Ages Served: 6-74

Appointments: In-office and Online

Manages Medications: No, provides therapy only

Accepts Insurance: Yes - View accepted plans

Maria Ostermann, Therapist

Maria Ostermann, LCSW

Specializes In:

Anxiety
Family conflict
Panic attacks
Parenting
Sexual trauma
Stress management
Trauma & PTSD
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Maria Ostermann has a decade’s worth of experience in the fields of clinical counseling, psychotherapy, and social work. She specializes primarily in working with adolescents, establishing therapeutic goals with an acute sense of family interaction and medical well-being. In addition, she has also worked with providing counseling services on an individual level as well as in family therapy and group sessions. It is her mission to provide the most open communication between provider and patient and family when evaluating a client from different angles and psychoanalysis. Maria is also experienced with senior citizens, young children, breast cancer patients, and those who are struggling with domestic violence, sexual trauma, and substance abuse. Her goal is to provide the utmost care and professionalism in any and every situation while also counseling clients on their steps forward to maintain or start on the path to a healthy and happy lifestyle. Maria obtained her undergraduate degree in psychology at Siena College in 2014. She went on to receive her master’s degree in Social Work from Adelphi University in May 2018 and became a Licensed Master of Social Work in October of that year. She is also a certified school social worker, having obtained that license in September of 2019.

Types of Care & Ages Served

Areas of Focus

Couples Therapy

Helps partners address relationship conflict and improve communication with a clinician's guidance.

  • Anxiety
  • Family conflict
  • Panic attacks
  • Stress management
  • Anger issues
  • Sexual trauma
  • Trauma & PTSD

Family Therapy

Improve communication and resolve conflicts within family dynamics with a clinician's guidance.

  • Family conflict
  • Parenting
  • Adoption & foster care
  • Attachment issues
  • Caregiving

Individual Therapy

Get help addressing challenges and improve well-being with a clinician's guidance.

  • Sexual trauma
  • Trauma & PTSD
  • ADHD
  • Adoption & foster care
  • Anger issues
  • Anxiety
  • Attachment issues
  • Attention & focus
  • Bipolar Disorder
  • Body image
  • Bullying or harassment
  • Career & relationships (mid-life)
  • Career & work issues
  • Caregiving
  • Childhood behavioral issues
  • Depression/feeling down
  • Detachment/disconnection
  • Dissociative disorders
  • Domestic violence & abuse
  • Early adulthood: Independent living or relationships
  • Early adulthood: Starting college or career
  • Emotional abuse
  • Empty nesters
  • Family conflict
  • Focus, concentration & memory
  • General relationship issues
  • Grief & loss
  • Intense mood changes
  • Marital stress or divorce
  • Menopause & perimenopause
  • Obsessive Compulsive Disorder
  • Other women's health concerns
  • Panic attacks
  • Parenthood
  • Parenting
  • Phobias
  • PMS & PMDD
  • Premarital counseling
  • School avoidance
  • School behavioral issues
  • Self-esteem
  • Self-injury or cutting
  • Sex & intimacy issues
  • Sleep issues or insomnia
  • Social skills & communication
  • Stress management

Languages

  • English

Education

  • Adelphi University

FAQs

Please call us at 516-969-3236 to schedule an appointment with Maria Ostermann.

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See what our patients are saying about Maria Ostermann

Working with Maria Ostermann has been a wonderful experience. She is very nice and has a gift for asking the right questions that help me see things from a new perspective. Her attention to detail ensures that nothing is overlooked. Five stars!
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Breana D.

Breana D.

Apr 11, 2026
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Maria Ostermann from Lifestance has been our counselor for over 2 years. I don’t know what we would do without her!!
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Theresa H.

Theresa H.

May 15, 2024
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Excellent experience
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Hailey W.

Hailey W.

Oct 16, 2025
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The testimonials and reviews shared on our platforms reflect the personal experiences and opinions of individuals voluntarily shared on third-party sites (e.g., Google). These reviews are voluntarily provided and are not compensated, solicited, or endorsed by LifeStance Health.

Important Notes:

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  • Individual results may vary – testimonials are not guarantees of similar outcomes
  • We do not independently verify the clinical accuracy or authenticity of statements
  • Clinician qualifications, expertise, and fit for your specific needs should be assessed through direct consultation

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