First, I really like that the doctor's office and the surgurical center are in the same building! Make it easy! I was greeted by LaTonya at the front desk and she handled getting me signed in for my procedure. No more than myself and another patient in the waiting room. Priscilla called me back to get me ready (pre-op) and was really fun which helped to relax the nerves! I could tell she had read over my medical history so she could ask me questions. Dr. Zimmerman was wonderful and asked how I was doing! Next up, Denny, anesthesia... Nice nap! thanks Denny! Aaron (hopefully I spelled it correctly) greeted me too. Before I knew it, I was in with recovery with Danielle who went over everything with me!! Danielle gave me a copy of the report with photos for my records! Overall: I arrived at 7:30am and I was in the car going home at 9:10am. Which says everything - they are organized, work efficiently (everyone has their responsibilities) and they had me in and out in no time at all. We will be staying with Dr. Zimmerman and Digestive Disease Center for a long time! read more

What an awesome team! Top line professional in managing the standard care of treatment for colonoscopy in Las Vegas. Special acknowledgement starting with warm reception from checking in process with Latoya, special treatment from my prep nurse Princess Priscilla. She knows how to nurture the human spirit. Special shoutout to my recovery team nurses Danielle and Carlisa, Top Line Professional in walking and assisting me to the quick recovery process after the procedure. BIG SHOUT OUT to my one- two punch combination of Dr Denny for the wonderful combination of anesthesia and Dr Mujtaba expert precision performance of my procedure and welcoming feedback. THANK YOU FOR THE WARM HOSPITALITY!! read more

What a great experience! My husband came in feeling nervous about the procedure because of experiences he had at other offices in the past, but this team quickly helped him feel comfortable, safe, and at ease. The office staff and doctors were professional, kind, and welcoming from start to finish. Their hard work, compassion, and dedication to their patients truly deserve recognition and appreciation. Thank you for providing such excellent care! read more

This facility operates smoothly. All of the personnel are professional and thorough with each interaction. The Check-In was effortless. Once called to the prep area Nurse Chavtney eased my fears. She explained everything to me as well as my Sister. Eric the Anesthesiologist assured me he would monitor me closely to avoid any issues. The Recovery Nurse Liz was spectacular. Dr. Ghulam Mujtaba was clear and concise in explaining how the procedures went. I had zero post-procedure complications. I recommend this facility for future procedures. read more

Dr. Zimmerman, Anestesiologist, Denny, nurses, Priscilla and Sharon, and Reception, Latoya. They were all amazing!!! read more

Awesome staff, everyone was friendly and professional. They explained everything before your procedure. Highly recommend them! read more

They have a great medical team and experience, well organized. Thanks Dr. Zimmerman.

Just to be clear, Dr. Zimmerman was fantastic. The nurses are awesome. I greatly appreciate their care and professionalism. But the office staff is just grossly unprofessional and downright rude and hostile at times. It really is unbelievable that they can conduct themselves in such a manner. I called a week after my procedure to get test results. I am naturally very curious and anxious to get my results, as anyone would. The first time I called I was chastised and told that the doctor was very, very busy and that they would call me when they could. A really short and rude way to convey the message, but I bit my tongue and waited. I waited all day. I didn't call anyone. I patiently waited. At 4:34 pm the next day, I missed a call by 1 minute and was left a voicemail saying they had my results. I called back literally 2 minutes after missing that phone call and was told I had to wait until 8 am the next day to speak to anyone. I asked if the nurses had literally left the building in the previous 4 minutes to which they told me "Yes they have. So sorry. You're just going to have to wait." Wow. Just Wow. Why the hostility for someone who just wants to get their test results?? I didn't call your office 20 times. I simply called twice in the past 2 days and was treated like an annoying pest. I will post this review after I get my results and then after that I will never, ever come here again. Grossly unprofessional, rude and incompetent office staff. 1 star. ....and only because I cannot give zero stars. Edit: I called at 8 am and was told no one was in the office and that I would have to wait yet again. This is unbelievable. I will never ever step foot in this place again. All of this just to get results that I STILL haven't gotten yet! Edit: I finally got my results. Thank you. It took a lot more than it should have but I am glad to finally have my results. read more

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The doctors are good but the concept that patients need to wait over an hour for their appointment is just absurd. It's disrespectful and rude read more

Dr Zimmerman is easy to talk with and listens to his patients. He takes his time to explain each situation. I am very impressed with his staff, office, and processes. read more

Digestive disease center best place if you need a colonoscopy or anything else cleam and the staff is great I'm very helpful. I highly recommend them. Dr Zimmerman is the best love his sense of humor and my prep nurse Danielle and the post nurse Melissa along with the anesthesiologist Joanne we're very considerate how I felt and took very good care of me before and after. I would not go anywhere else except for Digestive disease center they're the best in town read more

I feel comfortable at this office. I trust Dr Zimmerman. He is cautious and knows his stuff which has helped me immensely. All the staff and nurses are friendly. Casey and Daniel are the best! I would recommend this place. read more

I have been going to Dr Zimmerman for many years. He and his staff are amongst the friendliest, helpful, caring, and competent medical team I've ever experienced. I've had several procedures, including a recent one and they were just so caring and pleasant and respectful and knowledgeable I can't say enough. Dr Z has a great personality and good bedside manner and someone I can trust. read more

Had my exam yesterday and appreciate the facility from the front office staff at DDS that work together to greet you n offer you a seat until staff calls you up, both so kind. Then the nurses were compassionate and made me feel important to them about my well being. The anesthesiologist is the best in the business nothing like a good nap and wake up to another kind nurse, compassionate and made me feel safe and cared for and made the whole experience as painless as possible from the IV insert nurse to the aftercare removal nurse. Dr. Zimmerman did his thing, the nurses Priscilla n Liz were awesome and thanks to all involved Colonoscopy OVER n looking thank God I don't have to do it again for five years read more

Dr. Zimmerman and his staff are real professionals. I've had 3 colonoscopies with them and one endoscopy. Really professional nursing and support staff who put me at ease and made the whole experience an easy one. Would highly recommend. read more

Horrible customer service. They never answer their phone. Never return calls and always have an attitude. Please people if you don't like your job get a new one. Plenty of people out there that like doing their work and will answer the phones, reply with curtesy after all we are paying for your services we are not asking you for a favor. Very disappointing. They are probably nicer to a stray dog. What an excuse of a practice. If it closes I wouldn't be surprised. read more

I have been to Digestive Disease Specialists a couple of times. My husband has been there many times. We both see Dr. Zimmerman who is caring, friendly, knowledgeable, and informative. During my recent procedure, I was assisted by Priscilla and Savannah who made me feel comfortable, safe, and respected. I have and will continue recommending Dr. Zimmerman to family members and friends as I know they will be getting excellent care. read more

I'm so surprised by the Yelp score! Colonoscopy early this morning.They were phenomenal! The cleanliness, promptness, and the patient engagement were off the charts! I felt so safe and cared for. Priscilla, Danielle and Ann Marie were the best medical professionals I have ever met. Oh yeah, Dr. Zimmerman was pretty good too. Highly recommended!! read more

Great experience with Doctor Zimmerman, than follow up with Gener Cruz we really like Gener he spent a good deal of time with us answered all of my wife's questions, made copies of my wife's Quest lab results, we really appreciated that highly recommend the practice. read more

Nice lobby, staff was friendly and professional. Dr Zimmerman was very knowledgeable. In and out quickly for a consultation, overall a good experience. read more

Digestive Disease Specialists - Lobby - Gastroenterologist Near Me - Las Vegas, Nevada

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Dr. Zimmerman was fine, however office staff seems to be incompetent or simply does not care. It is difficult to get a return phone call and have had multiple incidences of orders for tests and referrals not being sent. Twice I have had to go to the office and get the orders/referrals and take care of it myself. Again, Dr. Zimmerman was a good physician, however there seems to be a serious breakdown in communication with office staff. read more

Avoid at all costs! Staff is inept and didn't get proper authorization from our insurance and claim was denied. Going through second appeal and seeking legal advice. read more

I've seen a few gastro drs but my second visit with Dr Zimmerman was really good. He seemed very concerned with my issues & talked about a plan for my reoccurrence cdiff The staff is very caring. Dr Zimmerman's assistant is awesome she's very awesome. Checkout is an easy process. She makes sure I know the tests I have to do, follow up appointment & IF I need anything just call. FINALLY found a gastro staff that they're all patient, caring, & supportive. Their office is very clean & nice with plenty of seating in the waiting room. Thank You Gastro's team read more

AVOID IT!!! Horrible staff!! Find another group, save yourself frustration!! No one cares at this group. I've reviewed all of them because the office manager, Gloria is diabolical!!! Should be fired!!! The staff is terrible because she's terrible. She doesn't step up. If your staff has messed up, then step up and apologize and fix it!!!!! She NEVER will!! Her IQ must be below 80. Sad but true!!! Save frustration, go elsewhere. read more

Dr Haikal is so great and listens and answers all your questions. My procedure was quick and they were so informative and followed up with me even after. I feel like this office cares about its patients and it's a breath of fresh air. It was pretty easy and quick to schedule an appointment. The staff is also great. I've had no issues with the check-in gal and she is so friendly, just BUSY. She has all the customers and phone lines to assist with. Front office staff and the staff in the procedural area are so funny and nice. It makes you feel less nervous for being there in the first place. read more

Dr Zimmerman is amazing along with the nurses. They are super friendly and you can tell they enjoy their jobs. However his office staff could be a little better. To be clear, the girl working the check in window is very short with patients and down right rude. You can tell she does not want to be here. Not willing to listen to what ppl are saying. She was so rude to another patient, I felt bad for them. This is a great location and office. I sure hope they can find someone to run the front desk that is a little more helpful and friendly. read more

I have recently gotten a diagnosis that was unexpected and very scary. I couldn't get through to the office to schedule for weeks. When I finally got in the doctor acted like I was overreacting and barely listened to my issues. I was told to just take Imodium for my daily gastrointestinal issues and pain i am experiencing and that I needed to take a medication starting right away. I was promised the MA would give me a call to set up the prior auth needed for the meds. It has been 2 weeks. I have never gotten a call from the MA. I have had to call daily and was told by the front desk "don't give up on us"? What does that even mean? This is a doctors office. I personally work in a doctors office and prior auths and I know I am being lied to daily. They just haven't submitted anything. There is no communication from front desk staff. I wish I could go somewhere else but my insurance will not pay for second opinion so I am stuff with this awful office. I'll be lucky if I get this medication before I am hospitalized Update: Finally got a call from Ana the MA today. She acted like it was my fault and told me she only just heard about this last week. I told her that I spoke to her in person at my appointment on may 17th and that SHE TOLD ME she was working on my prior auth. I brought this to her attention and she acted like i was an idiot. She gave me info and told me to get a TB and hung up on me before I could ask her another question. I have never been treated so poorly by an office before. The front desk staff and the MA's DO NOT CARE ABOUT THE PATIENTS AND WILL NOT HELP YOU THEY DONT EVEN ANSWER THE PHONE. read more

I received a referral from my PCP to come here. They had me scheduled months out for an appointment. I arrived early to the appointment where there was no one at the front desk and the counter was open with computer, patient files etc. (Major HIPPA violation) When I signed in, someone had just signed in for the dr a few minutes before me to see the same dr. After waiting about 20 minutes I called to see if I could get someone to answer the phone. They put me on hold for 10 minutes, so I called back. The woman said there was no one at that clinic and to come to the location next door. Next door, I waited for 15 minutes and they finally called my name saying that I cancelled my appointment online. I explained I didn't book online but over the phone and didn't even have their website to cancel. They said there were no available appointments. I explained how I had to change my schedule around at work to come to this appointment and had been waiting for months. The lady at the front desk kept repeating that I cancelled. Bad customer service, HIPPA violations, and bo empathy is what you will find here. read more

Dr. Zimmerman is a miracle worker who saved my life! I highly recommend him for any GI issues that you may have.

This office front desk personnel suck! Unprofessional and uncaring. This is my second visit and they asking me for a authorization, umm I'm the patient I don't get the authorization and shouldn't that be reviewed and done before my appointment not after I get here to tell me there's not a authorization to be seen? Horrible customer service. read more

The office staff was a horror. extremely disrespectful to patients. I just finished seeing Dr Zimmerman and he said that we were going to receive paperwork on the way out so I can hand deliver it to my mother in laws primary doctor. As I walked out the employee said ok i will take that paperwork. I said ok but dr Zimmerman said you were going to give me paperwork. She said no and I said yes he did. First off why second guess patient care giver? thats what he said to me. My mother in law who was 82 said yes dr Zimmerman said that. she was nasty and said wait in the waiting room all irritated. We waited then she came out with the paperwork and I had my handout to get the paper and she bypassed my hand and handed it over to my mother in law.. my mother in law called her a bitch. Then I called get a bitch too.I will never go back to that place again. I cant believe such unprofessionalism is such a disgrace. Shame on them. These ppl should be fired. read more

DO NOT EVER GO TO THIS DOCTOR!!! EVER!!! I am in chronic pain from a digestive issue and was referred to this horrible office by my primary care physician. I have Blue Cross, costly health insurance that is active and paid for. The morons at the front desk said I didn't have insurance and were the most rude, incompetent IDIOTS I have EVER dealt with. After arguing with them, I went to my car and called Anthem. The rep called these morons to tell them of course I had insurance and it turns out the morons put my information in wrong. I had asked Kathy in this office to just CALL ANTHEM and she refused. They treated me like a cockroach, lying about having insurance. I called my primary care doctor and got a referral to another doctor. These people are vile, never mind the fact that they had already canceled my original appointment with them. If you need medical care, you will hate these people. read more

This is the second time I was referred to this business. The initial call with the staff is utterly ridiculous. They tell you in the most rude tone that if you have had consultations or procedures with another Dr. prior to setting an appointment you must get the transcripts or a copy of it to them before you can make an appointment. After you get the info you have to give it to them so the Dr. can review it before you can make an appointment. They don't tell you that you can fax it unless you ask. After I got the info and faxed it to them, there was no follow-up until I called to ask if they'd gotten it. She reluctantly looked and saw it was there. Later, the staff called and asked why did I leave that Dr. In my case my insurance changed. After days of waiting I called to ask the status but the person on the phone would use one sentence replies as if she was upset that you're asking for more information to get an understanding of exactly what the hold up is and how much longer to get an appointment...SHEESE! She says she doesn't know how much longer it will be...this woman never asked my name and says the Dr. Hadn't given her anyone approved by him to be seen. Now, it's been weeks after the referral. I still haven't seen the Dr. SMH! This place (which has 3 separate locations) is a perfect example of a Dr. who is feed patients and doesn't have to work for them. He doesn't care if you come or not because there's always going to be patients being referred to him. The staff represents the attitude of the Dr's. Neither cares for you or their jobs. Now, I have to get another referral from my GP in order to see another Dr. My time was waisted for a month. read more

AVOID THIS PLACE. The Medical Staff are dismissive of patients requests, uncaring about patients needs, health and safety.

I walked in here for the first time a few weeks ago and I saw the doctor fast. We talked about my symptoms and ordered labs which I did the next day, and found out what I had within the week and gave me the medicine. It was fast and I felt like he knew what he was doing. Going to today for a follow up. read more

Be leery of this place. My wife has an appointment, checks in and told it would be an $85.00 co pay. My wife has paperwork from insurance company and referring doctor stating a $70.00 co pay, problem 1. Makes you wonder how often does this happen? Next my wife hands the girl a hundred dollar bill and was informed that she could walk up the street to store and make change. Really? This facility does not have the capability of making change? I could understand if it was a $10.00 co pay, but they did not have $30.00 on property at 1:30 in the afternoon. The receptionist was kind of smug. We left, we will find another doctor. Seek out alternatives if possible. read more

I just called the office to make an appointment with my provider, Lila Raissi, PA. Unfortunately I found out that she is no longer with this practice. I am so sorry that she has left. She was my provider over the past year and has been efficient, caring, knowledgeable and to the point. She always had my best interest and was very helpful with working through any concerns and issues I had. read more

Dr. Iraninezhad is great. But his business staff is incompetent and engaging in fraudulent business practices. First, they are collecting money before any services are rendered, even though they are told that the health insurance will pay the entire bill. Then when the insurance pays the entire bill, his business staff does not try to return the money they collected from the patient unless the patient tries to get it back. And then, they will not issue a credit to your credit card, even though they put the charge on your card, they will "apply" for a check to be sent in 8 to 12 weeks, thus holding your money for approximately 5 months. This is purposeful and willful fraud. I had to make a trip to their office to show them how much they charged on my card because they were too incompetent to see that they combined bills into 1 charge. Second, the staff could not see that my former Doctor had answered their request for test results several times, when all they had to do was read the info that was sent. I had to point this out to them while waiting for the results. I have no patience for incompetent medical staff because they are found too frequently in too many medical offices. The doctors are usually very good, but then turn around and hire people that screw everything up including record keeping and the billing. There's more to a doctor's practice than just his abilities. He has to have competent staff. read more

Had an appointment for a colonoscopy consultation with Dr. Zimmerman. After waiting an hour past my appointment time his assistant came out and asked me if I could come back tomorrow, that the doctor had to go to a meeting. No thanks, just give me my co-pay back. If he can't keep a simple appointment I wouldn't want him doing a procedure inside my body. read more

I had my colonoscopy and endoscopy a couple of weeks ago and i was very nervous about the procedure. Everybody there was very nice and helped me relax. Starting with the front desk lady, the nurse, anesthesiologist and Dr Zimmerman , they were all very nice, welcoming and professional. The prep for the procedure was the hardest part read more