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Therapist in Mansfield, Massachusetts Rosie O'Sullivan, Therapist

Gender Identity: Female (She/Her)

Ages Served: 18-75+

Appointments: In-office and Online

Manages Medications: No, provides therapy only

Accepts Insurance: Yes - View accepted plans

Rosie O'Sullivan, Therapist

Rosie O'Sullivan, M.Ed, LMHC

Specializes In:

Anxiety
Grief & loss
Panic attacks
Stress management
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Rosie O’Sullivan, LMHC, is dedicated to helping individuals across Massachusetts navigate life’s challenges and achieve greater well-being. With a focus on supporting adults and seniors, she specializes in treating anxiety, depression, grief, and women’s issues. Rosie’s approach fosters a safe, non-judgmental environment where clients feel comfortable exploring their concerns and working toward positive change. Her compassionate and strengths-based methods empower clients to overcome obstacles and rediscover their authentic, vibrant selves. Rosie is particularly passionate about helping individuals navigate grief and loss, utilizing her expertise as an Advanced Grief Recovery Method Specialist. She understands the complexities of bereavement and works closely with clients to address the emotional and practical aspects of their healing journey. Additionally, Rosie is highly skilled in supporting clients dealing with codependency and chronic stress, guiding them toward healthier relationships and more balanced lives. Her therapeutic approach incorporates mindfulness, self-compassion, and expressive therapies to address a wide range of emotional and psychological needs. Drawing from evidence-based practices such as Cognitive Behavioral Therapy (CBT), mindfulness techniques, and Emotional Freedom Technique (EFT), Rosie tailors her interventions to meet the unique needs of each client. Her trauma-informed care and relational approach ensure that individuals receive personalized support, whether they are coping with long-standing issues or seeking guidance through a challenging period. She also has extensive experience in helping clients develop emotional resilience, reduce stress, and enhance their overall quality of life. Outside of her clinical work, Rosie finds joy in dancing, practicing yoga, and spending time in nature. She enjoys walking along the beach, traveling, and cherishing moments with family and friends. Rosie’s love for Hallmark movies and laughter reflects her warm and approachable personality, which resonates with her clients. Serving individuals throughout Massachusetts, Rosie O’Sullivan is committed to providing compassionate care that helps clients navigate their mental health challenges and thrive.

Types of Care & Ages Served

Areas of Focus

Individual Therapy

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

  • Anxiety
  • Grief & loss
  • Panic attacks
  • Stress management
  • Aging
  • Anger issues
  • Attachment issues
  • Career & relationships (mid-life)
  • Career & work issues
  • Depression/feeling down
  • Empty nesters
  • Family conflict
  • Focus, concentration & memory
  • General relationship issues
  • Marital stress or divorce
  • Menopause & perimenopause
  • Other women's health concerns
  • Parenthood
  • PMS & PMDD
  • Premarital counseling
  • Retirement
  • Self-esteem
  • Sex & intimacy issues
  • Sleep issues or insomnia
  • Social skills & communication

Languages

  • English

Education

  • Cambridge College

FAQs

Please call us at 774-394-1347 to schedule an appointment with Rosie O'Sullivan.

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See what our patients are saying about Rosemary O'Sullivan

Rosie is so nice and easy to talk to. I look forward to our appointments.
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Kristina F.

Kristina F.

Sep 11, 2025
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Excellent experience
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Nicole Harrington B.

Nicole Harrington B.

May 22, 2026
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Excellent experience
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Charlene

Charlene

May 18, 2026
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Excellent experience
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Jay R.

Jay R.

Jul 09, 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:

  • Reviews do not represent the views of LifeStance Health, Inc., its clinicians, or affiliates
  • 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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