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Compassionate and High Impact Behavioral Healthcare,

Corporate Consultation, and Professional Education 


About Us

With more than 25 years of success operating a Clinical Social Work practice with high-impact results, Counseling Services of Long Island is a highly regarded and trusted resource for clients and therapists alike throughout the region. 

We are known for our professional skills, and our compassionate and non-judgmental approach

in helping clients achieve positive change, happiness and emotional well-being.

Our outstanding team of psychotherapists are licensed, trained, and highly experienced in providing specialized and solutions-based psychotherapy to individuals, families, and couples on a wide variety of issues. We provide individualized services

 and are committed to treating each and every client with unconditional positive regard.

In addition, we provide corporate consultations, offering programs which integrate human resource strategies with employee wellness. Our programs target and address employee and organizational challenges and needs. We help organizations develop programs to prevent and help employees cope with workplace trauma, violence, and other emergency response situations.

We are proud to introduce our new Professional Education Services Division that is devoted to helping mental health clinicians elevate their skills to a higher level of excellence through lifelong learning opportunities. This includes both one-on-one and small group supervision, as well as small to large group trainings.  With emphasis on the value of career-long learning, 

we strive to create a personalized and dynamic learning experience.

Since opening our doors in 1996, we have committed ourselves not only to excellence in our own practice, 

but also to advancing the practices of others. 

Please contact us to learn more.

                                                                          Penny E. Siegmann, LCSW-R, Founder and Owner                                                                                                                    

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