My visit was with Thuy Hua--if you get scheduled with this physician (I believe she's a practioner's assistant) ask for someone else. This visit was underwhelming, unhelpful, and annoying to say the least. These type of "practitioners" are, IMO, what's wrong with modern/American/Western medicine. Thankfully, I happen to know a lot about the gut and microbiome, otherwise I feel we would've just gone around in circles on this telehealth meeting where the best she could do is request labs for me. Then finally, in the end she suggests a SIBO test. I'm describing abnormalities--why aren't you suggesting all that you can think of to perhaps get a lay of the land? To be preventative? It was all kind of pointless, like I said it was basically just a telehealth call to get a referral to labcorp to get labs done, which I won't do because I actually wouldn't trust her feedback or interpretation. If you can't get the actual doctor, go somewhere else. Terrible bedside manner. If you are struggling and need answers go see Dr. Glen Depke, check out Zoe (which offers a stool test,) or check out function health. If you want to get to the bottom of things direct-to-consumer start up culture might provide you a more thorough, thoughtful, and less antiquated approach. This visit was BEYOND disappointing. read more

Called and never got an answer. Left messages on 5 different days and didn't get a return call until 10 days later by which time I had given up and switched to another doctor. read more

Great doctor but he's retired. I just called the practice and they confirmed it. It's also no longer called Insite. I went to his P.A. twice because waiting list was so long but we didn't vibe. She also got annoyed with me because the lengthy medication list I provided a week b4 my appointment was never entered into their system despite the fact that I called to be sure they received it and would be entered prior to my visit. As they did confirm they received it I didn't bring a copy with me. Our whole appointment was spent with her trying to get me to tell her each and every medication including exact milligrams of each dose. Then felt my stomach during exam and it tickled me so I giggled. She looked at me and said with the most blank look ever...oh does that tickle. Not even a tiny smile. For what I pay for insurance I want a doctor...not a P.A. She apparently moved to the new practice which is now part of Huntington...no longer Insite. read more

First up, let me say the experience I had was mostly good. I saw Dr. Littenberg's PA, and she and all of the staff were very kind. I ended up having to get an endoscopy and everyone there was very kind, including Dr. L, whom I saw for about 2 minutes before the anesthesia kicked in) and it was a quick uncomplicated procedure (until I got the bill--ouch). So why the 3 stars? Because I left my endoscopy feeling like I was just another cog in a machine that processes people through the (admittedly, well-oiled) endoscopy factory that I was funnelled into. After the endoscopy found nothing, the only thing they told me was just keep taking meds to avoid throwing up and the other symptoms I had. No offer for a follow up phone call, appt. etc. Although I guess I was glad to not pay for an appointment that would've told me this. But a phone call would've been nice to see if I had any questions about the results. What bothered me was that nobody wanted to pursue or ask the question WHY I was having this 'cyclic vomiting syndrome'. I had to do a ton of research myself and found out eventually that I had parasites that needed to be killed off. When I did that, my symptoms cleared up. It was a much less expensive solution than the almost $1K I racked up seeing Dr. Littenberg and having the endoscopy done. On the upside, I know I don't have cancer or an ulcer. I would definitely go here if you know you need an endoscopy and want a good experience. But for diagnostic purposes, I'm not as sure. read more

It's always a pleasure visiting doctor Littenberg. He is so calm and nice. Puts my mind at ease. Really knows his stuff and I would recommend him to anyone. The office is clean and organized. The staff is very nice. There is parking but the office doesn't not validate parking. My 40 min visit was $3. read more

This office is impossible to schedule with. They do not return calls, do not respond to emails, and their voicemail box is full. Good luck.

During this COVID 19 Pandemic period, only can visit doctor via Zoom. But he really knows our condition and he always have a chat with us and knows that I preferred the alternative medicines, besides the tradition western medicine. This time he suggest that I tried DGL and peppermint spirit, which we can get from sprouts grocery shop. That have been helping me a lot. We really appreciated Dr Littenberg is open minded besides his medical knowledges, and he listened to his patients. Thank you. read more

If you are not seeing Dr. Littenberg then you should because he will MAKE SURE YOU KNOW WHATS GOING ON AND NEVER NEVER KEEP YOU WAITING! He always responds to emails or questions and concerns and never makes you feel dumb for asking a dumb question haha He knows how to make someone feel safe and comfortable even thru a video appointment! HE IS THAT GOOD! I wish I would have found him years ago when I was diagnosed with colitis but can't look back to the past because when I look forward into the future with Dr. Littenberg at my side, I KNOW I AM GOING TO BE OK! Thank you doctor! read more

This place is the worst. Although I can't judge my experience with Dr Littenberg since I didn't get to meet with him due to his packed schedule. The staff and PA are so impersonal and dismissive that made me felt worst than my actual sickness. When I called, they wouldn't bother offering any other suggestion when I was trying to find out how to go about with my procedure. When I suggested I may need to cancel the appointment, she just said "ok I'll cancel it , good bye" without extending her help or suggest if I should seek other outlet. The PA I went to did not even bother suggesting any preventative care and all she did was typing down information. The whole experience left me saddened and felt helpless. I will seek other specialist where they will at least act like they care about their patients. . read more

Excellent experience with Dr. Littenberg and his great staff. My colonoscopy today ran on time, was quick, painless and incredibly professional. They texted me reminders for all of the preparation a week ahead of time and daily. Dr. Littenberg has an excellent bedside manner and is very professional and nice. Complementary parking right next to their facility. I will be referring him & his office for up all my patients' colonoscopy procedures. Cheers! DocMikeChiro read more

Dr. Littenberg was the only doc (after 3 mis-diagnosis in the ER) to figure out that my gallbladder got clogged with "biliary sludge" that was treated with medication. Two years later I'm now off the medication and all is well with my gall bladder. I am eternally grateful to Dr. Littenberg and so is my friend who was also having gallbladder issues that were resolved without needing surgery. In a time where most doctors rush through an appointment and are quick to reach for the scalpel or refer you elsewhere, this man is creme de la creme! read more

Dr. Littenberg is professional and very knowledgeable. He is also kind. The office staff is also very friendly.

Dr Littenberg and Dr Fu were my doctor when I had Ulcerative Colitis. They told me to take Probiotics and it cleared up and now I am clear of UC. Thank you. read more

Office staff is incompetent and lack empathy or concern. I called in May to make a appt, first available end of Aug!! Mind you, I've been shitting my brains out for years and having horrible stomach cramps, what's 3 more months? I get to my appt that they required me to get to 45 mins early cuz I'm new... Even though I filled out the 20 page questionnaire in advance that the doctor never read. I'm seen 1.5 hours after I arrived. Finally see doc, he asks a ton of questions. Says I need to go on a non fod-map diet and see him in 30 days. Sends me for a poop test and gluten test. Go to get test. I call the office 4 days later to check on results. Obviously I want to know as I've waited for so long already. I leave a detailed....very detailed message of my call. Some teenager calls me back and says, " you called?? What did you need?" I say did you listen to my message? No she didn't. Waste of time. I tell her over again. She informs me the lab did the wrong test on stool. I asked," they still have stool to re test 5 days later?" She says yes. I said can you have the doc call me about the blood work? Doc never calls. I call 2 days later. I'm on hold for 18 mins. I ask for office manager. She comes on, apologizes at least. Tells me they did the wrong test on blood work, not stool. Ok. I ask for the doc to call me. Doc calls and says everything is normal.. And questions me on wether I'm doing the diet right. I had eliminated gluten and food additives 2 weeks before seeing him already. He says I don't listen.. I ask him, " what about the belching?" He says its behaviorism. I ask him if he got the last upper GI report from my old doc. Doesn't remember about that. So I'm still shitting my brains out. I have to admit the fod-map thing and gluten elimination is helping with stomach pain and bloating. I cancelled my next appt. #bye read more

Don't go here. This place is ridiculous. Both times I scheduled appointments they had to to reschedule them and the appointments weren't even for the dr, they were with the pa. On top of that, they overbook their patients so when i was late in large part bc the elevator in the building wouldn't stop addy the lobby but instead went all the way to the top floor and then back down to the parking lot bottom floor over and over, then I had to wait bc the next app was already in. 20 minutes between the fn appointments. Maybe id have had some patience if I was seeing the dr or hadn't been rescheduled on... but no. They just want you in and out to charge the same fee as much as possible during the day no matter who u see there. It's not about the patients, it's about turnover and money. What a waste of time, money, and energy. read more

It took me long time to find a Dr. Littenberg. He is a doctor with a big heart. I was lucky to get an appointment for the same day because I got a nice administrative specialist who did extra work to put me in to replace a cancellation. However, most of the staff are not very friendly. However, Dr. Littenberg is exceptional and has a great amount of patience. He did extra work to get my UCLA report and talk to my doctor from UCLA. read more

Dr. Littenberg is the best! He is an extremely competent and compassionate doctor. He takes the time to explain things in an intelligible way and has a great bedside manner. His office assistant, Natalie, scheduled my appointment in a timely fashion and sent me all of the paperwork electronically. I highly recommend Dr. Littenberg. I have had two surgical procedures with him, and am 100% satisfied with my treatment. read more

I've been a patient of Dr Littenberg for over ten years and couldn't recommend him any higher. I first went to see him when when I was dissatisfied with old gastro doctor. After my first appointment with Dr Littenberg I knew I had found the right Dr. for me. He was easy to talk to, listened to my concerns, and answered all my questions. He understood my aversion to lifelong pills and has a great understanding of all the treatment methods out there. He has a calming demeanor which is a huge benefit when you are dealing with something as complicated as your gut. I suffer from crohns disease and have for almost 30 years. I have a good idea what my body will and won't respond to and like to have a strong knowledge of every treatment I start. Dr Littenberg explains things in a concise and understandable manner and has a great bedside manner. To further this point, I was talking to a family friend who is a world class liver specialist. I was telling him about my crohns and he said that you have to make sure you get the right doctor, this is a specialized area and the risk of a faulty diagnosis or treatment could have catastrophic results. He said could put me in contact with someone in the LA area that he recommended and trusted. I told him my doctor was Dr Littenberg and he just laughed and said, I know him, you're in good hands, he's the best. He is definitely an expert in his field and I am thankful that he is my doctor. read more

I've been a patient of Dr. Littenberg for over 25 years which, by itself, says something very important about a physician. I was originally a member of Kaiser-Permanente but when my medical plan switched to Anthem BlueCross and I moved to Pasadena from Los Angeles, I needed to find a physician quickly in order to continue having my Crohn's Disease treated and managed. I was referred to Dr. Littenberg on the good advice of a third party and have been under his care ever since. I've never had a more caring physician and, especially, one who has a perfect "bedside manner." He's calm, caring and obviously outstanding in his medical specialty. A visit to a Gastroenterologist is not an easy thing, but Dr. Littenberg makes things as easy and calming as possible for the patient. He explains things as plainly as possible and also answers, with clarity, the patient's questions. I would not hesitate to recommend him to anyone in search of a highly skilled and caring Gastroenterologist. read more

Dr.Littenberg is a very good doctor who listens to your problems. He is very knowledgeable in his field. High recommend his services to every one. read more

I have been with Dr. Littenberg for 40 years and I wood never trust any other doctor who is a Gastroenterology. He is kind, patient and a good listener. He is the best my Husband and I both see him. read more

Dr. Littenbeg is one of the best doctors I've had, he explains things and takes his time with me, he always treats me with the utmost respect and answers all my questions, Dr. Littenberg is a blessing. read more

If I could give less that 1 star I would. He did not believe me when I told him I felt that I had an intestinal infection and was running a fever daily and he insisted that it was glucose intolerance, gluten intolerance, bladder infection, lung infection . Even had me see a nutritionist who said I was not chewing my food long enough. Finally after 3 months when I was passing nothing but mucus he ordered a CT scan only to call me sheepishly the next day and say I had an intestinal abscess and "It has been smoldering for a long time" (guess what I said to that one!) He did not tell me that the abscess had already eaten a hole in my intestines and ...Yes, after changing doctors I ended up having intestinal surgery to remove 10 inches of my colon and intestines . I still after over a year am not able to eat properly and must be very careful with my fiber intake. This all could have been prevented if he had listened and believed me and ordered the CT scan in the beginning doing thorough diagnostics!!! read more

This is a great GI specialist! I feel like he saved my life & I only saw him for 15 minutes! Seems like a good detective. I am very glad my Dr called him for me! read more

He has the BEST bedside manners. He calmly explained the procedure and patiently answered my questions.

My review is not for Dr. Littenberg since I haven't met the guy yet. I've been trying to make an appointment since last Wednesday and I am still waiting for someone to review my documents and call me back. I mean it is easier to make an appointment with the President of the United States. If the office is shorthanded and they are answering calls for four different doctors, then maybe they should hire more staff members. read more

I've been seeing him off and on For nearly 3 years. I've experienced seeing 5 other gastroenterologists in my lifetime. None of them compared to Dr. L. When I first met him, he looked at me so intensely, he scared me a bit. But I realized, that he was so respectful he didn't want to miss one word. He also can type on the computer without having to look at the keys. He gives you his undivided attention. And I had a colonoscopy with him. I couldn't believe how much less disgusting the entire process was with him. Finally, a doctor who chose something that did not make me gag when I drank it. His staff sent food that fit my personal needs . It was food I could eat for the entire 48 hours before the colonoscopy. Usually , I have got to kick everyone out of my house and just vent as to how disgusting the liquid and food taste. I was pleasantly surprised when everything he gave me was completely different than what I had experienced. He also prescribed some basic cream for me so that I wouldn't get irritated or feel any pain during the "removal situation " that we have to do before a colonoscopy, if you know what I mean. This cream was a lifesaver there was no burning or irritation. When I got the procedure, I didn't vomit after it. Usually the local anesthesia makes me barf . He saw to it that that would not happen by giving me something slightly different. When I woke up, not only was there no vomiting, I didn't have a severe migraine . Later , I saw him in his office . He said that I wouldn't have to see him for another few years . He said, everything was going very well with me. I was happy about feeling better. But, To be quite frank, I was going to miss him. Why? Because he's so passionate about his work , he really takes his job seriously, but never forgets to be kind. I love all of his photographs that he takes during his vacations. He's mighty intelligent, dedicated , and talented. I feel lucky to have met him. Several of my friends go to him. One of my friends even stated that he made her a supplement with mint and now she is pain-free from IBS. One advise that I would give is that because he so good, there is a long waiting list. Usually takes a few months. So if you're thinking of calling the Office, call right away. Another tip that I would give you is really take the time to write notes about anything that has affected you regarding gastroenterology. He's going to want to know about everything and he's going to consider it, when he thinks of how to help you out. Also, I believe that the parking lot attendant only accepts cash. At least it was that way the last time I saw him. read more

I have only been there one time so this review is for that experience. The best reviews are when you have been an established patient for several years and you can begin to see a pattern. But for this one time I was impressed. I have been trying to find GI in the area and I have had some real bad experiences. (I would not recommend Dr. Julie Yang!!) First the Doctor was very kind and like what others were saying is a good listener, which is a lost art in our society. He took his time and was not pushy. Explained treatments in a way I could understand. It did take me a while to get an appointment and the first appointment I had they cancelled. So if I were in a lot of pain or having flairs this would have been unacceptable. Having a waiting list for cancellations seems like an easy thing to do and they should consider that. The staff seemed fine and these are the people you have to deal with on so many levels so will see how they treat in the future and hold my opinion for now. They should give validation or at least partial. I will be using Dr. Littenberg in the future. read more

Dr. Glenn Littenberg is the best gastroenterologist you could choose. My husband, Dan would not be alive today if not for the excellent knowledge and care from Dr. Littenberg. I think one of his best qualities, is the fact that he listens to his patients (I am also a patient of his) and never hurries his patients to leave before they have told him everything that is wrong with them. He is a very kind and thoughtful Doctor. In reference to the individual who said that the office staff being "short handed and incompetent". This person couldn't be more wrong. I have only known them to be very kind and compassionate. read more

Dr. Littenberg is the best! Can not find a better gastro doctor!

When you read 100s of reviews and patients report a 5 STAR rating, you know that he is a great doctor. I want everyone that reads this, he is truly a great doctor. So compassionate, gentle, kind, friendly, and very knowledgeable. I drove from the OC to Pasadena, took me two hours, but it was worth every minute of those 2 hours to find a doctor that is this AWESOME. Thank you Dr. Littenberg, you are a perfect doctor. read more

Dr. Littenberg is a very knowledgeable doctor with a great bedside manner and patient. It is difficult to find such a great doctor. He is always prepared before seeing his patients. He tries to prescribe natural food/supplement instead of chemical medicine which usually comes with side effects. Patients are always able to communicate with him through emails. He is always helpful and caring. I highly recommend him to those of you who need a GI doctor. read more

I've been going to Dr. Littenberg for several years, and I couldn't ask for a better gastro doc. He always takes his time with me and really listens to my medical concerns, even if they're not directly related to my Crohn's disease. I feel like I'm really heard, which isn't always the case with doctors. A small downside is that sometimes he runs quite late, which is probably the price one must pay for a doctor who takes his time with patients. read more