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 241 reviews with an average rating of 4.85 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.
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
Mike M.
Submitted 03/12/25
Front desk is horrible. They don’t care about the patient. They are lazy and refuse to go the extra mile for anyone. Dr Sideridis is always in procedure and never available to see anymore. Haley is very good. This practice has gone downhill starting with the useless front desk to a doctor you can’t see anymore.
Dawn A.
Submitted 03/03/25
A Life-Saving Doctor!
After 8 years of battling Ulcerative Colitis, countless hospitalizations, failed medications, and moments of hopelessness, Dr. Michael Ashmala and Long Island Gastro changed my life. In just 6 weeks, he accomplished what so many others couldn’t—he helped me reach remission!
Dr. Ashmala’s bedside manner is unmatched—compassionate, patient, and truly invested in his patients’ well-being. From the very first visit, he gave me hope when I had none left. His expertise, combined with his kindness, made all the difference.
His office staff is incredible—so pleasant, helpful, and accommodating. Every visit was smooth and stress-free, which is rare in healthcare.
Thank you, Dr. Ashmala, for saving my life! I am forever grateful for your dedication and care. If you or a loved one are battling GI issues, Dr. Ashmala is the Dr. you need!
Lydia T.
Submitted 02/25/25
Dr. Sideridis is an outstanding gastroenterologist who truly goes above and beyond for his patients. He is incredibly thorough in his evaluations, taking the time to listen and explain everything clearly. I highly recommend him to anyone looking for a skilled and compassionate specialist.
Crystal L.
Submitted 02/03/25
Very fast and efficient. No complaints whatsoever. Will use again.
Christine W.
Submitted 01/20/25
Dr. Sideridis has been my doctor for years now and I will never go to anyone else. He is one of the only doctors I’ve ever met that truly listens and takes time to understand a patient’s concerns. I suffered from sucrose intolerance my entire life without knowing and he diagnosed me when hundreds (no exaggeration) of previously seen doctors ever could find the problem. He looks at the whole system to determine proper treatment and he actually cares. He has extensive knowledge and experience. He is warm and trustworthy. Why see another gastroenterologist? He’s the best out there. Thank you Dr. Sideridis for everything.
Irene A.
Submitted 01/20/25
The best of the best !!!! Caring , talkative , understanding but mostly a great human being and then a great doctors ! Would highly recommend Dr. Sideridis to everyone !!
Claudien I.
Submitted 01/17/25
I had a procedure done by Dr Sideridis and my experience was great, they took care of me from start to finish..I'd recommend this doctor
Sarowar K.
Submitted 12/30/24
Very good
Kimm M.
Submitted 12/30/24
It was my first colonoscopy or as Dr. Sideridis said “my maiden voyage.” He has a great bed side manor and really put me at ease. His nurse and anesthesiologist were a great part of the team too. I recommend this practice!
Eileen V.
Submitted 12/25/24
Doctor was professional and explained everything. Staff was friendly and professional.
DAVID S.
Submitted 12/01/24
Dr. Sideridis is the master GI doc! He truly knows his patients and genuinely cares about each person. His knowledge is elite!
Ioannis P.
Submitted 11/27/24
Exceptional service, Dr Sideridis is professional and a good human being.!
Patricia C.
Submitted 10/30/24
I met Dr. Sideridis in the ICU at Plainview Hospital in 2016. I was at that time in organ failure due to vomiting and diarrhea. He diagnosed me and I have been seeing him ever since. He is a diligent doctor who explains everything in detail. I would recommend him to everyone.
Michael G.
Submitted 10/22/24
Hayley is very nice and helpful, always working to solve my concerns.
Guanase R.
Submitted 10/22/24
Everyone was very professional.
They explained everything in detail
Never had any issues.
CATHERINE B.
Submitted 10/19/24
I have been going to Dr. Kadam since 2013 when he found my cancer. I trust him completely and have recommended him to all my friends. My daughters have also gone to Dr. Kadam for their colonoscopies.
His caring and concern for his patients is what makes the difference.
I RECOMMEND HIM 100%. Cathy Burns
Cheryl K.
Submitted 08/07/24
I have been seeing Haley the past several months and she is very knowledgeable and very patient and understanding .I like her very much !
Carol D.
Submitted 07/01/24
Dr Sideridis was thorough in his diagnosis and engaged well with my 18 year old son, I would highly recommend him to friends and family.
Sergey B.
Submitted 06/29/24
Provided professionally quick and easy solution.