This review is NOT for the doctor but the office! THIS…read moreOFFICE US A MESS ! Kristine the procedure scheduler does not follow up with her work! There is also along time wait to talk to an office staff. Lines are always busy! Long time wait to talk to a person!!

Best doctor ever! But sadly, I am told that he retired last fall. I'm just going to put that…read moreright here, since nobody else has done that on yelp. His office staff is very nice and can match you up with one of their other doctors. They have access to Rothman's records. DR. ROTHMAN IS RETIRED.

I've been back to Dr. Matthew after leaving Kaiser 3 years ago and my previous review still stands…read more He is exceptional and I always enjoy my annual visit. Dr. Matthew is still the ever kind, personable and patient physician I had from the very beginning. I wish my other physicians were as great as he. Even better, I wish he could also be my primary care physician. I hope he continues practicing for a long time!

I used to think of Dr. Matthew as a kind and caring doctor but after the most recent visit - I…read moredon't know I would say that anymore. He was dismissive, condescending and very rude. No one goes to their GI doctor because they're feeling fine and I assure you I am not fine. I have been through a lot with this disease and this is the last thing I needed. I feel defeated and sad and left there with no let answers than I had before. Really just awful to feel this way when i'm already down from having this dreadful disease taking over my life. Sad- because there aren't many good GI doctors around the valley now.

Dr Cohen is my primary doctor I called his office last Friday not feeling well. I went to his…read moreoffice where he met me in the parking structure (he preferred meeting there not to come into his office) he diagnosed my health condition, supplied meds with meds needed. Dr Cohen and great staff care about their patients treating me like family. It is rare in these times to find a doctor that truly cares about you. Neil F

Solid doctor. I highly recommend Dr COHEN. He is knowledgeable caring and works hard for his…read morepatients.

Dr Herr & his entire staff are beyond helpful. Dr Herr is patient, understanding and very caring. I…read morewould recommend him to anyone !

I had two appointments with Dr. Guiv, a preliminary exam followed by a procedure at West Hills. I…read morefound Dr. Guiv to be outstanding, very thorough, very knowledgeable, and compassionate in a no nonsense sort of way. I knew I was in good hands as she took the time to discuss my general health and history and provided some informative and helpful advice. On the day of my procedure, everything went so efficiently. I was a bit groggy after the procedure and repeatedly asked questions, yes... the same questions, which Dr. Guiv answered with the same attitude as the first time I asked. I really like Dr. Guiv.

Wildly unprofessional to the extent that I am wondering if her negligence is due to bias, religious…read moreor otherwise. I work in health care, and do not generally experience this kind of thing. I was told to see her and schedule a medical procedure involving surgery. I was not provided other options. I scheduled to meet her. She was extremely brief and direct, but kindly. I liked her in the brief time I met her. I scheduled the procedure many months in advance and never spoke with her again. The week prior I did her prep protocol. I am aware that people can feel ill prior but I was so violently ill for 3 days with her prep care medicine that I was up all night sick and unable to function. It impacted my family as I was incredibly ill. Faint, hot/ cold, throwing up, sick in a car. The only times I have ever been that sick are when 1) I was in the ER with my appendicitis and 2) directly after a six hour surgery due to anesthesia. Also once in Paris after having shellfish but that passed in 5-6 hours, this went on for days. I let the office know multiple times and asked if she could please talk with me. I spoke with reception and an assistant, no nurse and no doctor. They reduced the medicine and I started to feel better. I spoke with a family member who is a hospitalist out of state and he was really concerned. I asked about other options and was told there are some, not as solid, but less likely to make me sick and suggested I speak with the doctor. I called the office to discuss but was shut down. Given the effect of the medication, I was also hesitant to go under without talking with her. I canceled the surgery as I really believe in patient care and that the cure should not be worse than the issue. She then sent me a letter I was fired as a patient, certified mail, due to a break down of communication. In other words, there was no communication but me, very sick, asking for a phone call. How could she take the time to arrange that but not call me back when I was incredibly ill from her prep? I believe I am fairly low risk, so having that conversation would have been much appreciated as well. Yet, impressively, she chose to fire me as a patient due to what, why, I wanted to speak with the doctor who prescribed me medication that made me sick? As if I was trying to run back to her after I canceled my surgery? All I wanted was a phone call at the beginning. I do know how busy doctors are and that trivial matters can weigh them down, but I was incredibly sick. The ability to be humble and kind is what makes this world a good place, and had she taken a moment to discuss options I probably would have just moved forward. I still do not have any questions answered. I dislike leaving bad reviews in the health care space, but there is a lot of arrogance and sometimes it is important - she found it necessary to treat me abusively and so there it is. I am not a lab rat and certainly not going to allow someone to perform surgery on me that is so callous they won't take a minute out of their day to speak with me and assuage the issue they created. Patients do need to advocate for their care, we are human and not everything is suited to everyone.

Excellent doctor, she has such a wonderful personality and makes the Colonoscopy conversation and…read moreprocess very simple and puts you at ease. I highly recommend Dr Guiv.

Considering what I went in for (colonoscopy), the doctor and staff helped make the procedure less…read moredifficult

Getting follow-up information is nearly impossible. Horribly inefficient people to deal with. Maybe…read morethe most impersonal disorganized medical care I've ever encountered.

First visit. Waited on the office for over an hour. Still…read morewaiting. Said there "weren't enough rooms." Not good.

Last month on 10/25, I returned to see Dr. Weiss after a year or so, and it was such a great…read moreexperience. Upon walking into his office I felt I may need to reintroduce myself, well I was wrong..... The woman at the front desk called me by name, WHAAT?? I was in shock, its been a year since I've been back and she had remembered my name!!?? Wonderful! I was there only about 6 minutes and was taken to an exam room to see Dr. Weiss, mind you, It's a doctors office so don't expect the Hilton but it is a nice clean well-lit location. Dr. Weiss did a good job addressing my GI issues and we proceeded with the plan to book my colonoscopy and endoscopy. I had little to no insurance issues, but everything went smoothly. See you again in a year or 2!!!!!!! As I've said before, I highly recommend Dr. Weiss to my friends/family currently seeking a Gastroenterologist! BTW: I read one review that criticized Dr. Weiss for not wearing scrubs.. I don't care if he's not in scrubs or a doctors coat, what does matter to me is the quality of care he has provided. The question should be how competent he is and he seemed perfectly professional and competent to me. KEEP ON BEING RAD DR. WEISS!!!!!!!!!!!!

He has been my Doctor for several years now and I couldn't be happier…read more You aren't rushed through your appointment, he's so approachable and listens completely. A great personality and performs colonoscopies like the pro that he is! I wouldn't put my ass in the hands of anyone else!

Dr. Ron was amazing, he explained everything to me regarding my scheduled colonoscopy procedure. I…read morefelt reassured knowing my azz was in seasoned hands. : )

This review is offered as a warning to others that, based on my experience, expect many hassles…read morewith incorrect codings for insurance and inaccurate billing. Background: My primary referred me at 58 years old for my first colonoscopy as standard preventative care. I have no history of cancer, polyps or anything of the sort and am in excellent health so the procedure is 100% covered. Dr Chitayat is in network for my insurance and it was my first visit to his office. The visit was mandatory to draw blood and consult prior to a colonoscopy (in other words, you can't just schedule a colonoscopy. You must visit the doctor first). The office visit was routine, all was fine and the colonoscopy scheduled with the nearby surgery center. ALL of this is 100% covered by Blue Cross/Blue Shield if everything is in network as it was. A week prior to the surgery, the center called to say I would owe $900 when I arrived. I said that was incorrect and explained it was my first colonoscopy and everyone was in network. The surgery center said that Dr Chitayat's office coded it as a colonoscopy based on "previous polyp history" and therefore it was not 100% covered as preventative care. After my explanation that I had never ever had a colonoscopy or previous polyp history, the surgery center had to call Dr Chitayat's office and have them resubmit the proper code for insurance. Dr Chitayat's office corrected it and I was not forced to erroneously pay $900 on day of surgery. To maker matters worse, Dr Chitayat's office INCORRECTLY coded the pre-surgery mandated office visit when submitting the claim to Blue Cross/Blue Shield, thus I received a bill for the office consultation as well. Again, this was WRONG because the visit was 100% covered (corroborated by Blue Cross multiple times) since it was my first colonoscopy and the Dr was in network. Since the Dr's office sent a particular code (the WRONG one), I was being told by Dr Chitayat's office that I was on the hook for the difference. My wife and I attempted to contact the office billing person for WEEKS and left multiple messages requesting a return call. They do not return phone calls at all. We finally went into the Dr's office and spoke directly with the office manager and explained that their billing person would not return messages and we were not going to pay a bill that was incorrectly submitted by them. The office manager referenced the billing person "being young and new" which, quite frankly, is irrelevant and reflective of a poorly managed practice. The office clearly has issues with their billing and in filing accurate claims. Our insurance has been quite helpful but said they can not change a submitted code and the Dr's office must do so and resubmit the corrected claim. Despite Dr Chitayat seeming to be a fine doctor (there were no issues with the actual procedure), I strongly recommend avoiding this practice unless you want never handling hassles due to their subpar billing procedures.