This is my 3rd visit with Dr. N.Simpson. I always ask for her, I find her bedside manner very…read moreprofessional but also very caring. I have given her name out several times. She makes sure I understand everything from the start to the finish. And, if you are lucky enough the dynamic duo, Dr. Huang the Anesthesiologist, both are amazing!!!

The doctor kept imposing her academic thinking about drugs/medicines as way to heal digestive…read moreissues. I asked her alternatives to drugs like changing diet, and she rudely dismissed it. Well, I decided not to take her prescribed medicines (which were long term and I read about horrible side effects on prolonged use), and went on a specific diet plan which seems to have reduced my symptoms at a great extent. It makes me sad to see why such MDs are prejudiced of holistic and natural methods to heal symptoms of digestive problems. They should be supporters of true health, and not salespeople for drugs/medicines.

Dr. Roorda is an excellent doctor; highly skilled, kind, and genuinely caring toward his patients…read more I trust him completely. The office staff are also very helpful and professional. He truly embodies everything you would hope for in a doctor. My husband and I have been under his care for about eight years, and we've both had colonoscopies and endoscopies performed by him; each time with excellent results, no pain, and no complications.

Great doctor, very caring and pleasant. He is a genuinely kind and optimistic person.read more

Excellent Colonoscopy! Would receive a colonoscopy from again. (and probably will)…read more I need a colonoscopy every 1-2 years due to my medical history. I like to do it without anesthesia so I can get on with my day. I've had 3 from another provider before having one from Dr. Simpson. Best colonoscopy ever! The previous provider would keep pushing the instrument forward no matter what, but Dr. Simpson would back it out and untwist it before going forward again, and this made a huge difference in my discomfort level. He described it like pushing on a rope, trying to get the rope across the room. If the rope snakes up too much, you have to back off to straighten it before pushing forward again. The lab tech (I'm sorry, I forget his name) was also excellent. He was able to put his hand on my abdomen at exactly the right spot, while also providing counter pressure on my back, so that when the instrument turned the corner in my colon it did so well and efficiently the first time. That's the most uncomfortable part of the procedure, but because of their expertise, it went well. Getting a colonoscopy without anesthesia isn't for the faint of heart. I would describe it as "extremely uncomfortable" but it never rose to the level of "pain" with Dr. Simpson. If you are considering it, I highly recommend him as a doctor. He also followed up with me about my genetics and recommendations that were personalized to me, which I greatly appreciate.

Just wanted to update my old review as I resolved my "GI issues". My old review was way too long…read moretalking about my diet and wasn't relevant. This is the relevant part "Just had a visit with Dr. Simpson and he was extremely thorough in his assessment. Usually doctors spend 15 minutes with me tops but our appointment lasted almost an hour! I was impressed with how he didn't just jump to antibiotics but rather wanted to rule out any major problems instead of just using a blanket treatment that treated symptoms." I've seen enough GI docs to know that if they can't find anything major and simply call it IBS, believe them. Now what is IBS? That's where you gotta go down the rabbit hole and it well after years and years of seeing doctors and changing my diet I can tell you it's psychological. If you dare, look into TMS (mind body stuff dr. Sarno). Cheers

I would give this doctor a negative rating if I could. When a healthy adult male 45 years old…read moreappears with high blood pressure symptom rather than just treating the symptoms that are not easily controlled by 2 or even 3 medication, the doctor should think more about the primary cause. Instead of just thinking about this being a resistant case of high blood pressure. A simple ultrasound let alone CT scan would've helped identify the lymphoma mass sitting on the kidney being the reason, but this doctor dint care enough probably due to insurance concerns to order one. i am very disappointed and its been 9 months after the blood pressure initial episode when we detected the lymphoma mass.

I have been under the care of Dr. Cheng for many years now (more than 10 years), after my previous…read morePCP (also from Sutter Health) retired. Dr. Cheng is very detail oriented, and explains the details of reports (pros and cons), explains what type of treatments are suitable. It really helps me to understand my health. He is courteous and had very productive conversations with him regarding my health concerns. I would recommend Dr. Cheng as a PCP.

I picked Doctor Dang because of the reviews and he didn't disappoint me. Doctor Dang is polite…read morereally easy to talk to and really listens to you, cares about his patients. The to young ladies that take care of the front office have the same attributes as Doctor Dang! I'm so happy that I found Doctor Dang!

TLDR: Does Accepts Anthem Blue Cross, just not through Covered California…read more I switched my insurance to Athem Blue Cross through Covered California due to issues navigating Kaiser for the past 5 years. I have some chronic issues that needed to be addressed by an internist. After carefully reviewing and researching doctors in-network I booked the appointment with Dr. Dang as he was in-network and seemed to offer what I was looking for (and I mean, I COMBED this website to make sure the info was accurate). I booked my appointment for February 1st back in November. Unfortunately, in the past couple of weeks I had to go to urgent care due to GI issues and was immediately referred to ER. I had been instructed to wait until my first visit with Dr. Dang for further steps so I could additionally be referred to a Gastroenterologist. I was looking forward to this appointment especially due to my current uptick of symptoms. Today, I received an email notification that my appointment had been cancelled with no explanation. When I called the office, the receptionist seemed confused as to why my appointment was cancelled, certainly without any details. They asked me to verify my insurance, which they said they accepted. They then asked "Is your insurance through Covered California"? After my reply, they said they DO accept my insurance, just not through Covered California. Is this even legal?? This is a week prior to my appointment and I now have to locate a new internist and will now be further delayed in getting a referral to the appropriate specialists. The next available dates to meet a new PCP/Internist alone is at least on month from today. I am beyond frustrated and disappointed. Had I been notified of this sooner my care would not have to be further delayed due to negligence in the health care system. Please have the decency and wherewithal to contact future patients and update your website accordingly so as to not waste anyones time and energy. Moreover- don't play with peoples health! We are all deserving of timely and adequate care. Have some compassion.

I had a decent experience at this medical office. I came in and the reception staff got me set up…read morequickly without much back and forth. They seemed like they knew what they were doing even though it was a bit busy. I only waited a short time before being taken back. The medical assistant was friendly and asked a lot of detailed questions about what was bothering me, my past issues, and current habits. They took their time without dragging things out which I liked.

Worst doctor ever! Has no knowledge of what to do or suggest. My husband had him as his primary…read morecare doctor for more than two years. Two weeks back he was diagnosed with stage four cancer. If I had money, patience and time I would sue this idiot! My husband had some of the symptoms like allergy, night sweats, thirst,insomnia etc for a year. He let this fellow know all the symptoms over phone and message and even when he went for his check-up. All the stupid doctor had to do was order a CT scan which he failed to do. Very very disappointed! I blame him for my husband's condition, more so because he never smoked and was not into alcohol.

Please be ware of this place!! It is a scam to just get money. Dont get fooled by the positive…read morereviews. I also ignored a similar review about money and still went there to get trapped. They book a "meet and greet" session for new patients. I asked them 4-5 times before the appointment, how much it will cost after giving all my insurance info. All of their team assured me that it will be 0$ co-pay for me as it is only a meet and greet where Dr. will just get to know you. Guess what, they billed my insurance 700$ after the appointment, out of which they are asking me to pay 300$. This is a scam. And the Dr. did nothing in this appointment, no advice/tests nothing, other than me sharing about my medical history and past test results and my concerns. I got to know that there are California laws against this, I will be filing a legal complaint Update: I called their billing office as Dr suggested in his response and told them I'd report them to the medical board. They said they will file the claim with insurance with a different code to see if they can bring the cost lower. You know what they did instead? They sent the bill to collections immediately. No warning, no attempt to resolve, no accountability. Just pure, disgusting greed and lies in every interaction. This place runs on lies, shady billing tactics, and a complete lack of ethics. And if you dare to speak up, they'll come after you. Because that is their business to suck up on your hard earned money $325 isn't going to ruin me -- but this kind of disgusting thug behavior is what unfortunately defames entire healthcare. I hope this "doctor" Iwahashi loses every patient who reads this. They don't deserve your money, your trust, or your time.

A rare kind of gem in today's world of doctors who are way too busy, impersonal and quick to…read moremedicate. Dr Iwahashi is a doctor who believes in prevention rather than cure. He is calm and patient and takes his time with you.

His diagnosis was perfect. He patiently listened to all my concerns and explained my test results…read moreclearly with facts. I would strongly recommend his service. Thank you doc.

Had a referral for a routine colonoscopy (yeah, could not believe that I am old enough to need one)…read morefrom my regular doc. I don't like the idea of any kind of procedures and shy away from dentists and doctors. So, if I had to get a colonoscopy I wanted to be sure I had the right person to do it. Asked around in the hospital where I work and this doc (Dr R) was recommended as doctor's doctor. Seems everyone I spoke to (nurses and docs had this guy do the honors). So, I had the test today. I would say everything about this was 5 stars. Right from check- in- very pleasant staff. Doc came and spent a good time with me explaining about the procedure (he's done 13000!!!) what to expect etc. from that point on everything was a breeze.. woke up feeling better than I went in. He can back and explained the results to Me and my wife. Clean bill of health ..and no need for another one for the next 10 yrs.