Walking here, it is a nice facility. I heard that since writing the review, the office has moved…read more I wished the receptionists here were more friendly. They looked as if they can be bothered. Additionally, they contradict themselves when you ask them a question and two of them answer, sitting next to each other. They give opposite answers. However, Dr. Jay Guan is 5/5. He's a young, intelligent doctor that has good bedside manners and talks to you in a non-condescending way. He's very good at explaining things and working with you to understand your ailment. Overall, I would go here but the receptionists make it difficult for me to give a 5/5.

I like dr guan. Only been with him about a month. But I seriously dont know if I will continue…read morewith him as his staff is inept! They put me through a month long ordeal with multiple issues. Gave me faulty information and the equipment they lent me for the test was faulty. Both devices!!! It was an awful harrowing , constant, practically daily "job" ( ordeal)!!!! The absolute worst experience I've ever had with a Dr's office ever!!! And I have many decades of dealing with Dr's and their staff!!! Absurd !!!! Outrageous

I was suffering from really bad acid reflux and after an appointment with a different…read moregastroenterologist that didn't help me, I went to Dr. Daneshgar. He knew how to help me and my painful nights ended. He wanted to do an endoscopy and was able to get me in quickly. Everyone I interacted with has been so kind and helpful. I highly recommend him to anyone needing a gastroenterologist!

NO NEED TO LOOK ANY FURTHER for a doctor that performs colonoscopy or endoscopy, Dr. Sharam…read moreDaneshgar at the Oak Tree surgical center, is the best! everything run very smooth and organized from the time of the schedule to the final visit, he is very compassionate and a doctor that listens to your concerns, so happy I got the care I was searching for, the nurses were extremely caring and thoughtful, they made me feel very comfortable for the whole time I was there. I'm so glad I Found him.

First time visiting this medical group and I was so impress with all the staff of friendly…read more professionals. I had no wait time, all greeted me with a smile. The PA Lisa Snegosky was right on with all my symptoms and explained in detail the next procedure, answered all my questions. I had never had such a fast referral. Everyone as in Jacob and Dr Simon, help with preparing me for addition screening. Wow so happy with their service. I highly recommend this facility of Doctors and medical group the anyone in need. L.Rangel/Realtor

I'm updating my review because level of care I have been receiving at the Camarillo office has…read moresince changed. I called the office last week and was treated extremely rudely by Sara, who said she is Dr. Simon's medical assistant. My concerns were dismissed even though I have been leaving messages in the portal for over 2 weeks and I have a medical condition that needs to be treated. It's always a chore to speak to someone at the office and being treated rudely and without compassion is unacceptable. Dr. Simon is very friendly and I believe she is a very skilled doctor but the lack of communication and her staff is making her look very bad. Currently in the process of contacting the corporate office to hopefully get some resolve.

My review is for this gastroenterology office and their neighboring (next door) outpatient surgery…read morecenter. Seeing the lower reviews I wanted to come on to add some clarity and kudos where I can. Again, not always the kind of place a person wants to have to come but when navigating your healthcare needs it's important to find a place with professional staff, established doctors and an overall office that feels clean, organized and calm. I can understand some of the lower reviews for the wait times/hospitality at the main office. I've been here about three times and one out of the three times my experience was a little slow unnecessarily it felt like. But I just accepted that they were busy and sometimes there are things going on behind the scenes that those of us in the lobby can't always comprehend. I found my interactions with the front desk staff to be to the point, and while sometimes a little slow with the paperwork or getting me my materials, I still felt like it was a professional setting. On the back end all of the medical staff are really great in my opinion. The nurse practitioners that I have seen and the additional aids/surgery schedulers were all wonderful. Everyone was very friendly and I felt like my nurse practitioner was very kind and patient with me as we navigated some of my healthcare issues. I've been established with Dr. Rojany at this office over the years and he's honesty wonderful. Great beside manner, thorough, kind, attentive and makes your experience feel supportive. While my medical consultations with him have been sporadic over the years he has always been great and I would highly recommend him. I was re-introduced to him as I had to go into the surgery center for an outpatient procedure. Again, he was very kind and reassuring, and the process went smoothly for my procedure. To the nurses and staff working the surgery center next-door, I would give them 10/10 stars if that was a thing! Full transparency I'm a very emotionally medically fragile person lol from blood draws, to just being in a medical setting, I usually cry and have a lot of anxiety. Going in for a procedure where I was going to be given anesthesia was very anxiety provoking to me, but all of the staff that helped me were so kind and understanding. They made me feel safe, validated my experience, but reassured me that everything was going to go fine and just had really positive bedside manner to help get me to a place that I could calm down and get through with our appointment. There were so many lovely ladies that helped me. I'm sorry that I can't recall everyone by name, but I do think they just have an amazing stellar team here that if you have to have some Gastro follow up or procedures done this is the place to come in my opinion. Couldn't thank them enough for their kindness, care and professionalism.

As I sit waiting on hold, 13 minutes so far, disconnected once, I have to agree with the "poor"…read moreservice from the staff comments. I've been a patient of Dr Miller's for years and he is a consummate professional. However, it is frustrating not to be able to make an appointment. Another time I was waiting for an MRI while the technician tried to reach the office, and it took 28 minutes on hold before anyone answered! Simply unprofessional since "UNIO Specialty Care" took over. I believe it is time to seek out another practice. This group must be understaffed and way too busy.

Gastroenterologist. Highly recommend Dr Rohany. Take time with his patients. Good doctor!!read more

Great doctor. Very thorough. Involved with patient concerns Explains what needs to be done and whyread more

Had a procedure done last Monday, 25th. Dr, Walia and the rest of his staff works very efficiently…read more My profound gratitude to all.

I had to visit Dr. Walia five years ago and get my procedure done....Because of the great…read moreexperience I had with Dr. Walia; I insisted to go back to him a couple of months ago (and not another referred doctor). Not only that Dr. Walia was professional, efficient and knowledgeable in his field but also caring for his patient and a good listener to your problem. I visited his Camarillo office and I must say all his staff members that I dealt with were efficient and pleasant. I will definitely remain with Dr. Walia as my Gastroenterologist specialist.

I'm so surprised by the other glowing reviews. Dr. Billesdon is the second worst doctor I've ever…read moredealt with. I told him my diverticulitis was flaring up. He didn't examine me at all, just told me to start taking 15mg of fiber a day. After one week I was doubled over in pain and severely constipated. But, every time I called to speak with the doctor, I couldn't. I spoke with assistants, who spoke with nurses who spoke to a doctor (not sure which doctor) and relayed messages back to me. One time I left a message and no one called back. By week two I was vomiting and in terrible pain. Still couldn't talk to Dr Billesdon. Finally, I went to the ER where I was diagnosed with an acute diverticulitis attack, put on two antibiotics and given Percocet for my pain. And told to STOP taking the fiber, since it had the opposite effect of what it was supposed to do. Now, it would have been grand if Dr Billesdon could have just spoken to me and told me to stop the fiber the first time I called. Don't waste your time here, there are better GI doctors nearby.

Thanks to a rare disorder, I must have not only an annual colonoscopy, but an EGD, which means the…read morewhole route from mouth to tail end. I must also avoid sunlight, even in the recovery room. Members of the staff jump right in to help me with this. The doctors' assistants are wonderful and cheerful. Dr. Billesdon himself is very thorough and explains his findings very clearly and instructs me how to address various concerns. Their follow-up clearly shows how thoroughly they handle each patient. I'm fortunate to have been referred to this group.

Dr. Shah has an amazing bedside manner, I felt comfortable with him from the moment I met him…read more He explained everything very well and was so personable throughout my visits. I feel very fortunate to have met him and would recommend him highly to everyone. Great physician! Derek

My wife is under the excellent care of Doctor Shah. He makes us feel like a friend. Sorry i can't…read morewrite it any better than Theresa P. wrote.

Dr Marasigan is the worst excuse for a doctor I have ever met. Left me to suffer in pain for months…read morewithout listening to me. Would not refer me to medical center even when I begged. Always takes an eternity to get an appointment. Staff is horrifying. They hang up on you, never call back or just transfer you to a dial tone. You just cannot speak to anyone there as the wait time are almost an hour to make an appointment. I even tried in desperation used the portal to request an appointment couple weeks ago and just received a message from the doctor - he doesn't care.... Even a little. Not one care given. Cannot believe he is licensed. Please never meet this guy! Run! You are better off doing it yourself gasto.

From the owner: Dr. Justin Marasigan is a Board-Certified Gastroenterologist who was raised in the Los Angeles…read morearea. He earned his undergraduate degree from the University of Southern California and his medical degree from Kirksville College of Osteopathic Medicine in Missouri. Dr. Marasigan went on to complete his Internal Medicine Residency in the Detroit area and his Gastroenterology specialty training in Erie, Pennsylvania. He applied a variety of experiences from rural offices to large academic centers throughout Western Pennsylvania and Eastern Ohio. Prior to joining inSite Digestive Health Care in Ventura County, Dr. Marasigan was practicing Gastroenterology for 7 years in Washington State.