Phone: (516) 294-5050



Law Office of Frank J. Cassisi, P.C. helped me through one of the most difficult points of my life.  They have handled my peculiar injury case with compassion and maintained a consistent level of communication from beginning to end.  My family will forever be grateful for their persistent dedication throughout this ordeal.

A. M.


I met Frank Cassisi, Esq. in 1995. I had a family emergency and he didn’t leave my side until it was resolved. It is now 21 years later and he has continuously proven his exceptional knowledge of the law. The most important thing is that Mr. Cassisi really cares about his clients and doing the right job. You can totally trust him in every way. My family and friends have had only successful experiences with legal cases over the years. He has always been our lifeline person. You will never find a more competent or concerned attorney than Frank Cassisi, Esq.

T. R.


About ten years ago my husband was in a car accident and needed legal counsel. Thanks to the Law Office of Frank J. Cassisi, P.C. what started off as a stressful situation turned into a pleasant and worry free one.  Frank and his staff were not only knowledgeable and courteous, but also quick and efficient in getting our case settled.  Thank you for a job well done!

M. and L. B.


My personal experience with the staff, and attorneys at Law Office of Frank J. Cassisi, P.C. was amazing. The office was caring and kind from my very first phone call. With attorney Frank’s expertise in personal injury law and a well-trained staff, they extended themselves and handled my case making sure I was taken care of in a professional respectful way from start to finish. This unpleasant and painful process that my car accident brought on was much more bearable as they graciously walked me through each step. I’m so thankful for their support and guidance. My health was their primary concern, and I felt human because they truly cared for my well-being. I suffered a severe shoulder injury and underwent surgeries, hospitalizations and therapy for a long period of time. Today, because of him, I am living a normal life again filled with energy and happiness. I have and will continue to recommend this practice to family and friends. Thank you Law Office of Frank J. Cassisi, P.C..

F. E.


Shortly after having a serious accident, I was advised to contact Law Office of Frank J. Cassisi, P.C. to get help.  I took that recommendation and was delighted with the care, expertise and family type of personal service given to me by their lawyers and staff.  My case was settled to my satisfaction!  I have recommended them to many others over the past 21 years since my accident and always feel strengthened when I consult them for assistance.

A. H.


I would like to express my heartfelt gratitude to Law Office of Frank J. Cassisi, P.C. for all the care and concern you have shown to me, and for working tirelessly to ensure that the law worked in my favor.  If it weren’t for their analytical skills and knowledge, the matter wouldn’t have been settled by now.  Thanks once again for your legal advice, time and efforts.

A. C.


This law firm has demonstrated unending caring and compassion.  They are excellent in their vocation as attorneys as is their knowledgeable staff. They have represented me to date addressing all of my legal needs and questions. Over the years whenever I, my employees and/or family needed legal counsel, you and your firm have made yourselves available.  You have always been there.  What is most useful is that I was guided to other legal specialists depending on my situation and who you felt would best assist me.  Who does that these days in a cold and materialistic world?  That is what makes you such a wonderful, caring and understanding law firm. I wish other law firms would learn from you.  I again thank Law Office of Frank J. Cassisi, P.C. with heartfelt gratitude for representing me so thoroughly.

D.V., MD.


Law Office of Frank J. Cassisi, P.C. came highly recommended to me by family member when I had a car accident and suffered a painful back injury. I didn’t know what to do but Lawyer Frank Cassisi put me in the right direction and helped me find the best doctors and therapists around. I was well-informed the entire time and all my questions were answered clearly, patiently, and professionally. The amount of attention and time he and his staff put towards my case was impressive as they worked diligently on all the details. Franks expertise in personal injury law got me a fair settlement that I deserved. My quality of life is better than ever and I am forever grateful to Frank and his team.   Even after the fact, it is a heartening feeling to know that I can call the office at any time for legal advice and Frank will still take my call.  He is more than just a lawyer but a friend!  I would recommend this law firm to anyone who is in need of a personal injury attorney… Law Office of Frank J. Cassisi, P.C. is the best in Long Island, NY.


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