About Serenity at Summit

Who We Are

Serenity at Summit is a group of addiction treatment facilities located in the Northeastern United States. We have six facilities located in Union, West Windsor Township, and Florham Park, NJ as well as Doylestown, PA, and Haverhill, MA. Our convenient locations allow us to provide excellent addiction recovery services to the Northeast, while our connection with the Delphi Behavioral Health Group family allows us to help those across the country.

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Ready to get Help? Let's Get started now. Let our Treatment Experts call you.
Ready to get help?Let our treatmemt experts call you.

How We Help

Between all of our locations, we offer the full continuum of treatment. From detox and acute treatment services to outpatient programs, we will be with you every step of the way toward true sobriety. We believe that addiction is a chronic disease that can and must be continually treated to prevent relapse down the road. That’s why we encourage everyone to stay connected to the recovery community for as long as possible both during and after treatment.

We aim to provide a solid foundation for addiction recovery and to improve the overall quality of life for individuals with substance abuse and related mental health issues. To achieve this mission, our professionals utilize an integrative treatment approach that incorporates the best clinical practices and evidence-based treatment strategies available in the addiction field.

Our drug and alcohol abuse programs range from detox treatment to long-term addiction recovery. We are here to help you understand all of your options and help you every step of the way. No matter what your situation is, you are never alone in your struggle with addiction. Let us help guide and equip you with the mental and emotional tools you need to live a life free from the shackles of substance abuse.

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Let us Guide you on the Path to Recovery. Receive a free treatment consultation today.

  • Our Leadership Team


    Lisa Hallahan – Clinical Director (Summit at Doylestown)

    Clinical Director (Summit at Doylestown)

    I am a licensed clinical social worker and I have been in the profession for 13 years. I'm a graduate ...


    Dr. Tracy Blatt – Medical Director (Summit at Doylestown)

    Medical Director (Summit at Doylestown)

    An alumna of Philadelphia College of Osteopathic Medicine with significant concentration in molecular and cellular biology, Dr. Blatt is an ...



    Marian Abdelmessih – Program Director (Summit at Princeton Junction)

    Program Director (Summit at Princeton Junction)

    Marian Abdelmessih MS, LPC, LCADC, CCTP, NCC, is a licensed professional specializing in addiction counseling, trauma therapy and mental illness ...


    Christina Varano-Sanabria – Clinical Director (Summit at Union)

    Clinical Director (Summit at Union)

    Christina D Varano-Sanabria received her master’s degree in mental health counselling and addiction from Caldwell University. Over the course of ...



    Tricia Kostin MSW, LCSW, LCADC – Program Director (Summit at Florham Park)

    Program Director (Summit at Florham Park)

    Tricia is a licensed clinical alcohol and drug counselor and a licensed clinical social worker. She obtained her master’s degree ...



    Dr. William Stanley MD – Medical Director (Serenity New Jersey)

    Medical Director (Serenity New Jersey)

    William D Stanley, born and raised in Baltimore, MD, attended UMDNJ-Robert Wood Johnson Medical school. Later, he did his internship ...