Testimonials & Reviews
Long Island Gastro
Gastroenterology Practice located in Syosset, NY
Long Island Gastro always appreciates feedback from our valued patients. To date, we’re thrilled to have collected 256 reviews with an average rating of 4.92 out of 5 stars. Please read what others are saying about Long Island Gastro below, and as always, we would love to collect your feedback.
Nicole S.
Submitted 12/01/25
I have been a patient of Dr. Sideridis for nearly 15 years, he always takes the time to listen to you and works with you on your treatment plan. He is truly the best! He is one of the most caring doctors I’ve ever seen. I have recently had the pleasure of working with JoAnna one of the NPs in the office who is also knowledgeable, friendly and caring. I highly recommend this team for anyone in need of a gastro specialist.
Melissa M.
Submitted 12/01/25
The doctor is very nice and is on top of your health. Very concerning.
Louis M.
Submitted 11/30/25
Professional and informative.
CHARLES J.
Submitted 11/27/25
Had a emergency appointment and was able to get required testing done immediately
Robin F.
Submitted 11/23/25
Dr. Ashamalla is kind, caring, and thorough. He answered all of my questions and took an interest in my well-being. His office staff and nurses are welcoming and caring as well!
Audrey M.
Submitted 11/18/25
Did not have to wait long to be seen! Dr Kadam was thorough and patient!
Carol D.
Submitted 11/11/25
Dr Sideridis truly is the Best! He listened to my concerns and addressed each one! He answered all my questions and provided a great plan of care.
Melissa G.
Submitted 10/31/25
Dr. Sideridis is knowledgeable and sensitive to patient needs. He seemed to know a lot about what I am experiencing before I even told him. He made a follow-up appointment for me which shows me that he is interested in my improvement.
Jacqueline F.
Submitted 10/24/25
Excellent care explained everything in detail to me so I would understand.
Angela D.
Submitted 08/02/25
Dr. Ashamalla is one of the kindest and most caring doctors I’ve ever had. He helped me through a very difficult time, both physically and emotionally. From the very beginning, he took the time to really listen to what I was going through and never made me feel rushed or unheard.
He consistently checked in on me, followed up on my progress, and worked with me to find the best ways to manage my symptoms, which were largely caused by stress. His calm, supportive approach made a huge difference in my care and recovery.
I am incredibly grateful to have had Dr. Ashamalla in my corner, and I highly recommend him to anyone looking for a gastroenterologist who truly cares about their patients.
Carolyn S.
Submitted 07/26/25
Dr. Sideridis has been a trusted and beloved part of our lives for many years. My wife, and I have been his patients for as long as I can remember, and the care he has given us has been nothing short of extraordinary. His warmth, compassion, and genuine concern are felt in every conversation, and his knowledge and skill as a physician have given us tremendous peace of mind over the years.
He doesn’t just treat symptoms—he treats people. We’ve always felt like more than just patients when we walk through his door. His office staff is equally kind and attentive, and the environment they’ve created is one of calm, comfort, and professionalism. They go above and beyond to be accommodating.
We are deeply grateful for everything Dr. Sideridis has done for us and for the kindness he has always shown to us. He is truly one of a kind, and we consider ourselves very lucky to have him in our lives.
Laura W.
Submitted 06/20/25
Great experience or as good as possible for your required EGD / colonoscopy.
Laurence E.
Submitted 06/19/25
doctor is personable, has a genuine interest in patient care. Explained exactly what needed to be done and is concerned about his patients.
Janice A.
Submitted 05/29/25
Staff is knowledgeable and they take the time to discuss any medical concerns that you have.
ROY M.
Submitted 05/23/25
Dr Kadam is one of the best Doctor I have ever had also is staff is very helpful and courteous
Marty P.
Submitted 05/23/25
Dr. Kadam is very patient and answered all my questions.
Alan C.
Submitted 05/15/25
Very satisfying
Linda K.
Submitted 04/17/25
Dr S as I call him is an excellent doctor He is knowledgeable caring and smart He has helped my husband out of two serious medical issues over the many years as well as provides myself, my husband and all our family members with exceptional care He is a class act and I recommend him highly
Ron D.
Submitted 04/09/25
Professional but yet down to earth.
Olga F.
Submitted 03/20/25
That was my first appointment with Haley Wipper, PA. I am a very satisfied patient, because Haley was very attentive, not only looking into the results of tests, but also listening to my explanation. She gave me a piece of advice about the food I was eating and when I was eating. She is really very very good