Greg S. Cohen, MD

Be warned that this office WILL auto charge your procedure fees whenever and for however much they want after the procedure is done WITHOUT sending any statement, notice, or invoice prior. The office will then tell you to speak to their “billing office” to get a statement AFTER the doctor’s office auto-charged hundreds of dollars as requesting a simple heads up is beyond the office staff’s scope! How can this be legal? A patient deserves to see a bill with options for payment PRIOR to being forced to pay! The office staff hide behind their 3rd party billing company to not deal with the overall issue and of course blame Northwestern for passing the bill to them. That’s not the point. The point is providing NOTICE and the literal ABUSE of autocharging your card on file! In addition, I was charged additional thousands from both the hospital, the doctor, and my insurance because it wasn’t covered. Now I have to double check that the office isn’t double charging me fees Northwestern is also charging me for a procedure my insurance said wasn’t needed! It’s all the more difficult since the office staff claim they know nothing because of their 3rd party billing which candidly, is not my problem! I don’t believe this doctor did diligence prior to going straight to colonoscopy (which due diligence was also given as a reason why it was not covered by my insurance by my insurance), which combined with other reviews I read on this office on Google, makes all of this feel too fishy. There are way better ethical practices around not hiding behind the NW name! editing to add after response: none of this is about the Doctor not getting payment. none of it is an expectation of not paying. Point is, give patients a heads up before auto charging $400 nearly a year later, during xmas time, when I have no ability to even change the card or know the auto-draft amount because I was not given heads up. I’m sorry, there is simply no other excuse! By the way, the $400 was charged by YOUR office’s billing as per your own office staff, NOT NW. Your billing is under your control. Thanks for being considerate like your office staff was this morning!

I have seen many GI doctors over the years, and he is truly the best doctor I have ever met. I am genuinely grateful to have him as my physician. He listens carefully to my concerns, takes the time to understand my full story, and answers every question without any hesitation. He backs all of his recommendations with research and published papers, which gives me so much confidence in my care. He even replies to my emails after hours and goes out of his way to send prescriptions or order lab tests when I need them. His dedication, compassion, and thoroughness are unmatched. Highly recommended.

I had a disappointing experience with Dr. Cohan’s office. My insurance was supposed to cover the procedure, but the office did not provide the necessary information to the insurance company. Instead, they charged me $400 directly. I’ve been trying to resolve this, but the issue remains unresolved. I hope the office improves its billing and communication processes.

I recently started seeing Dr. Cohen for severe abdominal pain. Dr. Cohen really spends a lot of time getting to know your symptoms, and thoroughly investigates your health history for an accurate diagnosis. Dr. Cohen has also made some great suggestions and described these painful events as flare-ups which is absolutely true and something I never realized. I have seen other GI doctors who told me things that were completely false, and informed me to eat enough fiber which I already count daily and do as a vegetarian. The GI system is extremely complex and I am happy I can see a medical expert who understands this and can get to the root of the problem. Also as far as billing Dr. Cohen's website is extremely transparent about pricing so not sure how someone could be upset or complain about billing practices.

Would give 0 stars if I could. Went for consultation- just got a referral. They said it was covered but then insurance stated I needed a proper referral. So I booked an appointment with my primary care and got all the paperwork required but they forgot to send it to insurance within the 90 days. Horrible. Also- they charged my credit card without informing me prior.