Book an Appointment
Qualifications and Experience
Awards and Publications
Dr. Robert Weiss is an attentive, compassionate internist and gastroenterologist treating patients in New York City and the surrounding communities. His primary goals as a practitioner are to ensure accuracy in his diagnosis and treatment and to ensure effective communication with his patients. He uses his sense of humor and empathetic approach to put his patients at ease while they receive treatment. He also holds Board certification in both internal medicine and gastroenterology.
Originally from New York City, Dr. Weiss attended the Mount Sinai School of Medicine in order to pursue his medical degree. He continued his medical education at the Beth Israel Medical Center, where he focused on the study of internal medicine. Dr. Weiss has also received training in gastroenterology at Mount Sinai and the City Hospital at Elmhurst.
Patients visiting Dr. Weiss can receive a full range of medical services. He provides general consultations, colonoscopy, second opinions, colon cancer screenings, and consultations prior to surgery. When he is not treating patients, Dr. Weiss enjoys crossword puzzles, reading, sports, and spending time with his family.
Verified Patient Reviews
Dr. Weiss is a consummate professional. Super sharp and personable, he was very knowledgable about gastroenterology and my overall diagnosis. The office was extremely clean and I was seen right away. I was left with a very good impression and I'm glad I booked my appt with him.
Dr. Weiss has ideal bedside manner. Friendly, answers all questions, competent. Highly recommended.
I've been seeing Dr. Weiss for years, very knowledgeable and helpful. Highly recommended.
Doctor simply exudes intelligence and ease. He was personable, confident and knowledgeable, and the staff was very friendly. I felt that the doctor very efficiently absorbed a ton of information with my medical history and concisely explained the situation and appropriate follow up. Further, he seemed to understand how to deal with my insurance and suggested an appropriate timetable for scheduling procedures given the appropriate bureaucratic hoops.
Dr . Weiss was professional, courteous and kind. He is well qualified in his specialty. I'd surely refer anyone I love to his care.
Courteous, efficient, knowledgeable, and made an uncomfortable situation as bearable as possible. Also, a pleasure to support physicians who are small business owners.
Dr. Weiss was very kind. He answered my questions and was very clear in his explanations.
He made me feel so at ease and comfortable instantly - very happy with the experience and after the consultation, I'm so glad he'll be the one performing my upcoming procedure as well!
He was good but I need an esophagus specialist
My visit was great. Doctor Weiss was very professional and addressed all of my concerns. I would happily return.
Dr. Weiss and his staff were very helpful. He's very personable and makes you feel comfortable in his office.
Dr. Weiss is extremely knowledgeable and professional. Leaves plenty of time between appointments for time with his patients and makes himself available on email and phone if you have questions later. He listens carefully and takes notes to make sure he considers everything when diagnosing a patient. I feel fully confident in his care and treatment.
Dr. Weiss is a very knowledgeable in his feild. He is very calmly doctor. Makes you feel good about your illness. He also has time for his patients.
Excellent interpersonal skills, very systematic and thorough. Old fashioned kind of practice, with no real front-end desk staff. He is highly responsive to patient concerns and really listens. When my NURSE recommended him, I knew he had to be good!
Great guy, very knowledgeable and made me feel OK about procedure
Very easy to talk to, knew my diagnosis right away, and was so helpful and kind!! I absolutely recommend!!
The doctor took care of me right away. I waited about ten minutes.
Dr took care of me right away. Made me feel at ease. Very professional.
Extraordinary -- Dr. Weiss listened carefully and was nonalarmist in his approach (unlike most of the other docs I've seen for my symptoms of unwanted weight loss, loss of appetite, frequent bathroom trips, etc.). Without going into details: He is taking a very conservative, systematic approach to diagnosis. I was truly impressed. How often is it that you leave a doctor's office feeling better than when you came in? That was my experience with Dr. Weiss. Highly recommended!
Very pleased. Wait time was minimal (I actually got seen early) and Dr. Weiss was professional, kind and very thorough. I'm incredibly happy with how today turned out.
Although our appointment was brief (it was unnecessary to meet for long given my lack of GI symptoms and following-up on my primary's suggetion), Dr. Weiss was kind and concise. I also appreciated the ease with which I could communicate with Dr. Weiss, as he offered his email and business card should I need to contact him with questions.
Awesome doc one of the best makes you feel comfy and prepares you for the unexpected also has a sense of humor try him you will go back
Amazing, friendly and caring.
Very friendly and takes the time to explain everything to you. Highly recommended. Went to meet the doc right away!
Dr. Weiss has impressed me on all three occasions that I have seen him. He put me completely at ease to discuss things that are not comfortable for me to discuss. He did it in a way that was light hearted and yet completely caring and professional.
Very personable and approachable. I went for routine colonoscopy and everything went smoothly. Dr. Weiss gave me detailed written instructions prior to the procedure. He also gave me a written report after the procedure while I was in the recovery room.
I was wrongfully charged for my visit and my insurance company was doubly charged (AND my initial payment at the office was not put through so it didn't even count toward my deductible). Tried to get in contact with the doctor's office for weeks (and months) to resolve the issue to no avail. I even had my insurance company try to contact the office and they were unable to get through. So I feel a bit robbed.
Great doctor, under 5 minutes waiting time, all forms completed on zocdoc before appointment, listened carefully to my issues and was able to make a diagnose right away and offer solution. Highly recommend him!!!
Dr. Weiss was super nice and professional. I got in with no waiting time at all. He was very pleasant, patient, and thorough with his analysis - covering all of the relevant questions. I highly recommend Dr. Weiss and will definitely go back to him in the future if needed, though I do intend to stay healthy.
He was extremely friendly, made me feel very comfortable. He was so knowledgable and had an answer for every question I had. Was very patient with me, and really showed me that he cared about getting me better! Definitely recommend Dr. Weiss.
Excellent doctor. Clean office, clean bed. He listens to you carefully, i would definitely recommend this doctor. Thank you dr weiss
Great Doctor! I've seen Dr. Weiss 3 times now and he has always been helpful and professional
I was the first appointment of the day and I was seen within five minutes. I had filled out all of my paperwork ahead of time online - highly recommend doing the same! Dr. Weiss was super approachable, especially around something that could be an awkward topic.
Dr. Weiss and his staff were very friendly, and he took time with me to talk about my problem and discuss my options. He is very knowledgeable and he is warm and makes you feel extremely comfortable. Dr. Weiss really makes you feel like he cares about his patients. It was a wonderful experience. I will definitely be using him again.
The doctor saw me right away, but as I was trying to explain the pains and give a recent history regarding my concerns he kept taking personal phone calls in the midst of it. Threw me off a bit He did apologize. I was not given any type of examination which I thought was a bit strange, he just prescribed medicine. I ended up having a reaction to the medicine - not sure if I was allergic or just have a sensitive body, but I got a second opinion. That doctor agrees with Dr. Weiss' assessment, and thought the medicine should not have given me any reaction (its a common medicine), so it was just me. Second opinion however did examine me thoroughly, and I felt more comfortable with his diagnosis given he did an examination.
Very thorough, tops!
I definitely liked Dr. Weiss, he was nice and I was in and out of the office quickly with my questions answered, but I had a big problem with my insurance here! I searched ZocDoc per usual hoping to find an in-network doctor with my insurance carrier as a search guide. After having my first appointment when I gave the receptionist my insurance card I got a bill for my deductible, which is high! No one bothered to tell me that they are not in-network for my insurance.
Eh I felt like he didn't really listen to me and was a bit condescending. Then he prescribed meds that I told him I don't react well to. He said they were mild side effects and I would be fine. I didn't pick them up and saw a different doctor.
Dr. Weiss has proven to be a great find! He is knowledgable and attentive. I am grateful to receive his guidance on getting to the bottom of my GI issues.
Good bed side manners, saw me right away
Very friendly and personable!
Gastroenterology typically doesn’t really bring out the most excited qualities in us when we schedule an appointment. However, Dr. Weiss is a phenomenal doctor with a sense of humor that can soothe even the most concerning of issues.
He's really nice !
Dr. Weiss was amazing! He was funny and was very thorough and spent a lot of time talking to me about my symptoms and how to treat them. Highly recommend!
Very inquisitive and amenable to learning about the patient. Appears to consider many factors. I like that he did a conflict check between a drug I am taking and one he was considering recommending.
Dr.Robert Weiss, the first time i met a doctor with so much attention and care for the reason I went to see him, I was very comfortable, he asked me questions and gave me all the answer for me to know.Thank You Doctor
This was my first visit with Dr.Weiss and I am very happy that I have found my PCP.
Excellent doctor. Highly recommend.
Great overall visit. Would highly recommend.
Very smart very kind highly recommend
A very personable and skilled doctor.
It went as expected. He treated me with respect. I will definitely go back for a follow. Up appointment. He's very knowledgeable and courteous. Thanks Dr. Weiss
Fantastic, warm and thoughtful.
Dr. Weiss was very attentive, listened to all of my concerns, examined me thoroughly, and gave me advice.
Great guy, will be back.
Dr. Weiss was patient and gave me a suitable treatment that helped me and proved he is a true professional .highly recommended
Excellent, Caring, Funny, made me feel at ease. Answered my questions and had me out the door quickly! Really friendly staff, happy people in the office, they laugh and smile. :)
He greeted me right at the door. His medical forms were available to be filled out ahead of time online which was great. We had a brief consultation as he looked over the records I brought from a previous appointment and he was very helpful and answered all of my questions even those unrelated to my illness. i.e. Is it the caffeine or coffee itself that makes you 'go'. and why. (It's both by the way, the stimulant of peristalsis by caffeine and low pH/ high acidity of the brew.) His exam was quick. He was very amiable and thorough. I would recommend him to anyone.
Dr. Weiss is a very nice and competent doctor
He is one of the best doctors I've ever visited. He spent a lot of time answering my questions and was straight to the point with possible solutions.
I have asked for the results of my test to be transferred to my GP and it never happened, even after multiple requests. Also bills kept coming for the same procedure months later!
Great! Doctor Weiss is attentive and has good beside manner. Happy to talk through any issues with you and is very knowledgeable.
He seems to be a very thoughtful doctor -- taking into account all my complaints and not disregarding anything. I would definitely recommend him.
Great doctor, very informative visit
Great guy. Helpful.
Couldn't have been more pleasant, funny, brisk, and efficient and puts you right at ease. Could not recommend highly enough.
Very personable. Comprehends my symptoms and is easy to converse with.
Very professional and polite. Thank you!
Dr Weiss, is hilarious! Great sense of humor, very cool guy. I look forward to going back.
Saw Dr. Weiss for a physical and to establish him as my PCP. Saw me right away and was very efficient with my time. Would recommend him highly.
I was the first appointment of the day, and Dr. Weiss was kind enough to take me EARLY. The appointment was fast yet thorough, and Dr. Weiss was very kind. I would definitely see Dr. Weiss again.
Very cordial and nice personal touch
Dr Weiss is smart and helped me feel at ease with some concerns I had. I showed up early and he was able to see me right away. However I went to Dr. Weiss for a physical which ended up with me talking about some other concerns I had, eventually Dr. Weiss kicked me out because another patient showed up (before my scheduled time) and told me he didn't know this was supposed to be for a physical and I should schedule another appointment. Also be aware that blood work needs to be done at a secondary location.
Excellent practitioner; listened, answered questions, and was very patient with concerns. Very reasonable fee for uninsured patient - lease expensive out-of-pocket visit I could find in Manhattan.
he's fantastic, very professional, never keeps me waiting and always greets me with a smile!! i have been seeing him for over a decade so, to state the obvious... he's that good!
Very personable and helpful doctor. A pleasure to know him and access his professional services. Thank you ZocDoc, you are an excellent resource.
Very attentive and informative.
I went in for a physical. The doctor spoke to me for about 4 minutes and the actual physical took 2 minutes. Had to call back twice before getting blood work results back and this was after weeks.
No wait. Friendly and competent.
kind, carrying, to the point and very quick to follow up. overall a great family doc to have.
he listened and cared about everything I had to say and when I left the doctors office I felt like everything would be better.
Very friendly doctor and made me relaxed about the procedure I was about to have :-)
I was excited to see this doctor due to great reviews. I was a little disappointed since it appeared he had an office of one. He was the receptionist and the doctor during my appointment. He stated that his receptionist was out sick which is understandable, however, it only got worst from there. Reason for my visit was an annual check up which required updated blood work but I was informed I had to visit another location to have blood work performed. Overall, I made a co-payment to speak to a doctor who based his examination on my physical appearance. Needless to say, I visited another doctor who was beyond my expectations. Everything happens for a reason.
Professional and good sense of humor.
Great listener, very clean nice office, and didn't feel rushed in the visit. Made me feel welcome and cared for. I'd go back again without a second thought and highly recommend Dr. Weiss.
I don't hate doctors but don't enjoy the process. However, this experience with Dr. Weiss changed my perspective. He made my visit very comfortable and was extremely tentative to my needs. I will definitely visit him again as needed.
He was very understandable and very outgoing. I never write a review for anything this is actually my first time. I thought I would share the greatness that Dr. Robert Weiss presents in his office from his staff and how he operates and makes sure to deal with the problem right away so you do not leave his office even more worried than you originally came in.
Very outgoing. Made me feel very comfortable
This doctor was horrible. He wrote a prescription for me and when I called to get a refill he told me he did not have any records of ever seeing me. It took him days to find the records and then another few days to call in my prescription, which meant that I was without my medicine for almost a week.
excellent and a compassion doc. i would highly recommemd. Thank you.
Really clear and simple. I definitely recommend Dr. Weiss for vacation doctor needs.
An excellent experience
Got my annual physical with him. Yes, he's more of a gastroenterologist, but he's still very helpful and knows his stuff. Great bedside manner and is always informative.
It was pretty great. In.. out and he seemed like he cared about my health. 5 Stars!
Dr Weiss is very nice and professional!
Good doctor. No complaints.
Great doctor, very personable and actually fixed a misdiagnosis!
I appreciate that I was able to schedule and be seen so quickly. My procedure was blissfully uneventful
Dr. Weiss is great! This was my first time seeing him. He took the time to sit down and talk through my medical history with him, examined me thoroughly, and answered any questions i had. A quick visit but definitely felt thorough.
Highly recommend Dr Weiss. He is very prompt, has great bedside manner and was extremely knowledgeable.
Very reassuring and he has great credentials and works with one of the best and oldest programs in the city, at Beth Israel.
Quick, yet thorough. Really helpful with questions.
Very friendly, made me feel comfortable right away.
Quick and to the point but not rushed. Exactly what I want out of a visit.
Great highly recommended!
Great doctor to have on your side.
He was thorough, attentive, took my statements seriously, opened himself to questions and seemed concerned. A positive visit!
great doctor I highly recommend him
He was phenomenal help to me, and amazingly attentive. He doesn't overbook, so there wasn't a wait. Also, he didn't push to do anything extensive that wasn't necessary. I truly felt better after seeing him.
Can't be beat. Dr. Weiss never makes me wait, is always extremely friendly and easy to deal with.
Really listened, very helpful.
But he was not an OB GYN which is what I searched for with ZocDoc. In fact, ZOCDOC made all the mistakes. He was a great doctor though, helped me find an alternative.
Very pleasant and professional
Dr. Weiss Was Excellent in Every Way (but) Zoc Doc was misinformed regarding availability of Vaccines, they must make it clear to patients if doctor actually does keep certain ones at his place of business. I needed yellow fever immunization, Zoc Doc lead me to believe that Dr. Weiss kept this innoculation in his office- that was not correct!
He's a good doctor.He gets straight to the point(no crazy fancy words).I was late for my appointment but he was very nice and professionanl about the matter and I still kept the appointment.Nice clean office also.
Very impressed with him. He made me feel comfortable right away.
Dr. Weiss was dismissive and rude. I brought up several concerns about my health that he disregarded and refused to consider. He was brisk in listening to my symptoms and unprofessional in checking my vitals. Dr. Weiss did not think my symptoms were a problem and told me I was fine. I went to a different doctor who confirmed my concerns and has since then treated me.
Dr. Weiss was extremely knowledgable, prompt, and thorough in his diagnosis. The icing on the cake was that he was so incredibly nice and understanding during the whole process from consultation to procedure. Truly excellent, go see him.
Excellent. Seen immediately and very warm and caring physician. Highly recommend.
The office was clean, organized, and cheery! Dr. Weiss was very educated, patient, and thorough. I would definitely return!
Office staff is friendly and the doc is great. I didnt even have a chance to sit and wait before I was seen and helped.
Really a gastroenterologist, not a full service internist.
Very personable, answered my questions in a very clear and friendly way. Has a caring attitude.
Very kind, approachable man.
Very kind and flexible. Made me feel very comfortable.
Dr. Weiss, who I found through my Atlantis insurance (tough to find docs who take it lately, so I was pleased), was a good listener, very prompt in seeing me, and efficient. He heard my concerns and made conservative recommendations about what I could try to improve my condition.
He's a great doctor - very friendly and professional. WARNING: Does not accept credit cards!!!
Great bedside manner, funny guy.
Very straight forward and friendly. Put me at ease immediately when I came in.
I found Dr. Weiss to be top-notch for the following reasons: i) Confident, which comes from his knowledge of medicine - this gives me confidence in his assessment. ii) Empathetic - he genuinely tries to understand what you are experiencing. iii) Forthright and interacts with you as a person, not just as a patient. Good conversation for as long as you need to address any thoughts, questions, concerns, etc. iv) Very thorough - conscientious and persistent. Highly recommend.
Dr. Weiss was professional, knowledgeable and responsive. After my visit I had a follow up question that I asked via email and Dr. Weiss responded within 30 minutes.
Excellent Doctor. Very caring and has great bedside manners!
Excellent doctor! Highly responsive and knowledgeable. Highly recommend Dr Weiss.
Professional, helpful and thorough. Dr Weiss took the time to explain various options to me, as well as made efforts to ensure that my medication needs were met. I was also seen very promptly and did not have to wait long. I would recommend him if you need a gastroenterologist.
Great doctor! I highly recommend him. Dr. Weiss has provided excellent treatment to resolve all 4 areas that I needed to take care of (two of them have not be resolved satisfactorily by two other doctors- one by ERT doctor and another by a generalist). Great manners, excellent specialist!
Dr. Weiss is very friendly and willing to solve problems with behavioral and nutritional changes before medications.
A very pleasant doctor.
He really helped me figure out why I was experiencing some of my symptoms.
Experience was good, not great. Fastest check up I have ever had, I think I was expecting something more thorough. But he was satisfactory and seemed professional so he meets the basic minimum.
Dr. Weiss is a very kind, knowledgable man who knows his medicine. He doesn't waste time getting to the point and he is very understanding with any issue. I recommend him to anyone who needs to see a Gastroenterogist.
Dr Weiss was amazing...I have had 2 endoscopys done and he was by far the best. Dr. weiss is very quick and thorough. All the while making me feel compfortable.Def recommend!