I never fully understood the explanation of what was the required $500 deposit for my colonscopy procedure if I had my private health insurance coverage. I paid it anyway because, as the AMGI explained, I will get it back in 3 months. That timeline came and passed. I got some of my deposit back only after countless of follow ups, phone calls, voice messages, and emails to their billing office which was stressful and increasingly frustrating. Paying a high premium for health insurance is frustrating enough but this experience pushed that frustration to a whole new level! On top of that, I learned through Yelp and other review apps that this did not only happen to me but to many of you who also went to see Dr Blosser and trusted AMGI, and then treated woefully! One proactive thing that worked for me is I reached out to my health insurance provider, complained, and asked for help to get my deposit back which they gladly did. After working with my health insurance benefits specialist, provided them with documentation, and records of phone calls and emails (so keep a log) and staying on top of phone calls and emails, I finally got my check but it was $30 short of the $500 deposit I put down with no explanation of what the extra charge was for, even when I tried to get one. My request for an accounting of additional charges was also ignored. Dr. Blosser maybe a good GI but you have other choices you can go to. Dealing with this practice's business office is a real nightmare! read more

In response to Shae's comment below -- she was the person I was dealing with the entire time. Phone calls and email to her were useless. The "firing of the previous billing company" was already being cited months before my procedure, so that explanation doesn't hold up. Good luck to anyone willing to take a chance here. As I mentioned earlier, search for "$500 Advance Medical GI Reston" and read the reviews across different sites before making a decision. Previous Review: My experience with Advanced Medical GI in Reston was incredibly frustrating and careless from start to finish. On the day of my procedure, the check-in nurse put the wrong patient wristband on me without even asking my name. That level of negligence should have been a warning sign, but unfortunately, it only got worse. I was scheduled for a preventative procedure, and after completing the full prep the day before, I was told that morning I had to pay a $500 deposit up front. At that point, I had no choice but to go through with it. That kind of last-minute surprise billing is unacceptable and unethical. Later, I received a separate invoice for $1,875, even though my insurance confirmed the payment had already been made to AMGI. My insurance provider reached out four times to confirm the payment and received no response. I also submitted an Explanation of Benefits (EOB) showing the amount was approved and paid. Good luck trying to reach the billing department. On top of that, they held my $500 deposit for months without any explanation or updates. I had to follow up multiple times and was met with silence or vague, unhelpful replies claiming they are still waiting for insurance to pay them even though I was told multiple times by my insurance company that it's been paid. This office is disorganized, unprofessional, and shows a troubling lack of accountability. If you google "$500 Advance Medical GI Reston," you'll see this isn't just my experience -- there are plenty of other patients saying the same thing. Save yourself the stress. Find a provider who values your time, health, and trust. read more

This clinic does not respect patients' time. They seem more concerned with booking too many patients, which results in patients being seen hours read more

Excellent procedure; the doctor and procedure staff spent quality time with my wife and I on my sensitivity to sedation. HOWEVER, I also had a problem with the $500 up front deposit. I sense that the majority pay it without questioning as I did with my HSA card. I spoke to my Cigna insurance, they informed me that the $500 should be refunded. After numerous texts and telephone "exchanges" I had to return in person to get the $500 refund. I would not be surprised if a significant number of patients are unaware that their insurance company likely pays most of the coloscopy charges as it is preventive and that they should not pay in the first place and if they did pay, are entitled to a refund. The reviews about the front desk are similar to my experience. Without asking my name, she placed a wristband on me. You can tell she does not like being there and does not like her lunch being interrupted, yet she is the initial impression and the face of the practice. She should be more welcoming and professional read more

Based on my direct consumer experience, I absolutely do not recommend Advanced Medical G.I., P.C.. I am sharing this review to ensure transparency for future patients and to provide an accurate record of the severe administrative challenges I faced. Following a lengthy dispute over an unreturned advance payment--during which I experienced repeated communication delays, I was forced to seek a legal remedy. I filed a formal civil claim against this practice in the Fairfax County General District Court. On June 26, 2026, the court officially entered a binding Default Judgment in my favor against Advanced Medical G.I., P.C. The court ordered the practice to pay the principal disputed amount of $500.00, plus my legal court costs and an ongoing 6% interest award. I sincerely hope that other patients do not encounter the same difficulties I experienced while attempting to resolve this billing matter. In my opinion, a patient should not have to file a lawsuit to recover funds that the court ultimately ordered be paid. While I am glad the Virginia legal system issued an order to refund my money, the stress I experienced prior to the court date were entirely unnecessary. Based on this experience, I would choose another provider in the future. For anyone considering this practice, I recommend maintaining copies of receipts, payment records, and all communications regarding billing matters. This review reflects my personal experience and opinions. The court records in Fairfax County reflect the judgment entered in this matter. read more

If I could leave a negative star ratting I would. The shadiest billing practices I have seen. When I come in for procedures, I have always gotten a lower and upper GI scope done my insurance paid for both. I usually have a small amount out of pocket. Somehow the billing department has charge me $1000 out of pocket that I can already see will be an uphill battle to receive a refund. From the doctor side of the house one of the most unprofessional doctors I have come across. After the procedure I ask a simple question about the finding. A simple if you lose some weight this will help with your condition would have been the professional answer. Instead, the doctor took it upon himself to push on my stomach and say it that baby that you are caring around. Avoid this practice at all costs. read more

I feel like I have to update my whole review after my appointment today. The only person who wasn't either rude or negligent was the lovely lady at the check out/scheduling desk. I have been a patient of this (and the predecessor practices) for 13 years and have never been treated so poorly until the past 18 months. read more

Received a call from Shae Roth in 10/2024 where she apologized for the error and wrote my balance to $0 if I updated my Yelp review... Which I would do if they would stop submitting claims to my insurance company. A claim with date of service of 2/27/2025 was submitted on 3/5/2025 and another claim with date of service 4/4/2025 was submitted 4/10/2025. I have called the billing department several times, no one answers and I doubt any messages left will result in a return call. Utterly ridiculous. read more

While the care received by my fiancé was fine - the billing department is a nightmare. He has called many times to get the $500 deposit back for his EGD. They continually tell him they will look into it or do not call back at all. He has called his insurance company many times to ensure that they have paid the practice and they confirm that it was paid shortly after the procedure. There is no way that there is not something fraudulent going on with billing at AMGI in Reston as it is clear that he is not the only one who has experienced this. read more

I wish I could give zero rate in this office. My primary doctor gave me a order so went this office for scan. They refuse provide the result to primary doctor for result but they claim their service from my insurance. I call them they did not send to me the result either.They are horrible. read more

I'm sure Dr. Blosser is a competent physician, but the administrative side of his practice is an absolute nightmare. I had an endoscopy with him in November 2024, and his billing department submitted the claim incorrectly to my insurance. This led to me overpaying the practice by $820. Since December 2024, I have been trying to get my money back. Ten months later, despite countless phone calls and follow-ups, I still haven't received a refund. Every interaction with their billing staff is filled with delays, excuses, and finger-pointing. I expected not only quality medical care, but also honesty and professionalism in handling my payments. Instead, I've been met with incompetence and what feels like complete disregard for patients once they've collected their money. If you value clear communication, accountability, and fair billing practices, I strongly recommend looking elsewhere. read more

Like many, many have reported here, they will take a deposit when you already have insurance pre auth and try to keep your money. I got my colonoscopy done in the first week of September 2025. Cigna paid their claims within a couple of days. They still haven't refunded my $500. Same story, they don't answer phone or text messages. Surprising, how can a business survive with this strategy? Avoid Advanced Medical Gi and their other aliases. If not you will regret it like many others here. Still fighting to get my money back. read more

As experienced by other patients, they took $500 for Colonoscopy Screening, eventhough there is no deductible. They submitted 3 claims to the insurrance company, and each explanation of benefits came back with $0 patient responsibility. Everytime we call they say they will process a refund check and mail it to us, but we do not receive it. Dr. Blosser is good. Hope he looks into this issue and resolves it, as there are several patients waiting for the refund, which they should not have collected in the first place. To the Business Manager: Will I ever get my money back? How can we reach you (email address or direct line)....calling the front desk does not help. read more

As many others have noted, I had to fight for months, and finally physically walk into the office, in order to get the $500 back that I should not have been charged in the first place. No other practice has ever asked me for an upfront deposit; they simply bill me after the insurance pays their portion. This creates an unnecessary hassle for patients. Avoid this practice, as I will in the future. read more

Horrible customer service, I've had to call multiple time to get a copy of a procedure report. They tell you they will send it, but nothing happens. They just want to get you off the phone as fast as possible. read more

As experienced by other patients, they took $500 for my husband's Colonoscopy Screening in March 2025, even though there is no deductible. We only found out about the $500 once we were in the office and he had already done the prep. The insurance company processed the claim within weeks and the explanation of benefits came back with $0 patient responsibility. I had to call them in September to see where the $500 refund was. I got a text in early October to say it was "being processed" and as of November 2, 2025 have not received a refund. They do not answer calls or respond to texts. This business is not certified by the Better Business Bureau (and I now see why). I will be filing a formal complaint with the insurance company because this is not ethical. read more

In the interest fairness, posting an update to say that I finally received my refund check three weeks shy of a year of the procedure.

I am trying to get my deposit back from procedure done in October last year Numbers of calls no results . It is so hard to believe such level of ignorance and unprofessionalism still exist in any kind of business. They are just careless . Looks like that deposit is very shake way to work with someone else money read more

Did your phone and website get hacked? I've tried your phone number multiple times and it doesnt connect and when I click the url link for your website, some SE Asian gambling site pops up. read more

I have been trying to get my refund back for 6 months now from my initial $500 deposit. They submitted to my insurance incorrectly and therefore this refund has been delayed by months. Added a lot of stress on top of the procedure itself. read more

The Billing Dept is very worst. The facility collects $500 upfront even though insurance covers 100%. They submit the claims to Insurance with different names for the same service which is double billing and will send the bills to pay again. I have been calling last one year for the refund $500 more than 20 times and left the voice messages as they don't pickup the phone and don't respond for the voice messages. In case if you reach someone, they just lie by saying the refund is in process. Basically they don't refund your money.... Be careful...You can see several online postings like this from the patients. read more

don't go here u less you want to do the prep work for you colonoscopy and the day of be told you owe 500 before the procedure can be completed. so I gave them 500 that didn't need to be paid figuring I would work it out later that was October.....told in June they would send a check at the end of the month.....it's July 21st and nothing. they know they owe it back....they admitted that but yet haven't sent it. Even the insurance company know they did something shady. read more

I went to get a colonoscopy early October and had to pay a $500 deposit per the documentation, which also states that you will receive your deposit back if you have met your deductible or whatever the difference is between your deductible balance and the $500. Although I had already met my deductible at the time of my procedure, they still took the $500. The insurance company paid the Dr before the end of October and I have been calling since the end of October to request my refund of the $500. They have been so rude, dismissive & flat out been giving me the run around. I have read quite a few reviews that have had this same issue and have to receive a refund. This is extremely disappointing and very unprofessional. I've never seen anything like this before. I only gave 1 star because it wouldn't allow to give zero. read more

From beginning to end, my experience with Advanced Medical GI was excellent. At their Reston office, the patient care coordinator, Charlotte, was kind and extremely patient, even taking my blood pressure readings three times. I also met with Dr. Blosser, who was courteous and professional, and recommended a colonoscopy. Brianna, the patient care administrator, completed the paperwork quickly and efficiently, and followed up with an email. My colonoscopy was performed at Stone Springs Hospital Center, where the staff was also excellent. The attending nurse, Cassandra, was professional and caring, and her joyful sense of humor made me feel very relaxed. Dr. Blosser came to see me after the procedure and shared the results. He was very reassuring. Overall, an excellent experience! read more

Very unprofessional, they never pick up their phones, and the doctor spent less than 2 minutes with me during my initial visit. I've been trying to reach them to let them know I will not be getting my colonoscopy done with them but I can't seem to reach anyone. My last option is to drive to the office to let them know in person so I can avoid the $500 fee for cancellation. To make matters worse, the doctor didn't attempt to ask me if I had questions or concerns. Terrible practice. read more

I had to pay my bill and I couldn't find online payment info. I tried calling the number they had given and on the google. I left message so many times but they didn't call back. I am so shocked at their behaviour that their client wants to pay their due and they are not responding. Finally after 2 months of struggle I got a website to pay online which totally looked suspicious cause it didn't ask for my bill no., account no. like a legit payment website of medical industry would ask... Nevertheless, I paid with my credit card details on and the response that I get back is you paid via paypal and now I need to sign up for PayPal. I feel like their whole system is dodgy, I wouldn't recommend them. Why would anyone wants to go through such an ordeal while they are already going through medical issues.... read more

I have used this practice for many years. My recent experience was very bad. When I called to say I would be 15 minutes late for my pre-colonoscopy consultation I was told they were canceling my appt., charging me $300, and I would have to pay this amount upfront before being seen. I found the policy and staff to be heartless and the office manager has not returned my call. I will find a new practice which is unfortunate because I like my doctor and I previously was treated with respect. read more

I can see that I am not alone in the issues that I've experienced with Advanced Medical GI(AM). First of all Dr Blosser is the most arrogant and non-caring physician I have ever dealt with. As I am laying on the table he is arguing with me about findings from prior procedures and also about the medical history I provided. He also didn't even mention the diverticulosis in the report following the procedure which is the main reason I have the procedures every 1-3 years to begin with. He stated on a call with me that everyone my age has diverticulosis and it is not an issue. Well it is a big issue for me and given I've been having the same procedure at the facility for 20+ years you would think he would have access to review these records prior to the procedure. This is all before I get to the below poor customer service provided by Shae Roth and the office staff at AM. They charged my credit card for $500 even though the paperwork I signed told me that my card would not be charged unless there was a no show or cancellation. They then scheduled me to have the procedure at a facility that was not in network with my insurance even though I specifically asked if the facility was in network before completing all the pre-procedure paperwork. Shae Roth advised me that the facility charge would be written off due to their negligence on sending me to one facility when I could have easily had the procedure done at another facility that was in network. Then the cherry on top is that I received a collection letter this week for charges due to AM based on their own inability to send patients to the proper facility. Before this practice became AM they had so many good doctors that one could choose to go see. Now they have all left and AM is only one doctor. I should have trusted my gut and followed Dr Hani Sabahi to his new practice instead of going here. Seems they are just collecting peoples $500 deposits (probably something that needs to be reviewed further) and providing below standard care. read more

Why can't I get through to anyone by phone??? I called several times to try to make an appointment. Every time I called I'm on hold for nearly 20 minutes and no one every picks up. How is this okay? read more

Kept us waiting for an hour and forty minutes. No explanation or updates. No consideration for the patients.

Read the other reviews here. Several describe an experience similar to mine. Your healthcare is important, which makes your provider choice important too. If you find a good provider, be sure to rate them here on Yelp so that we aren't just making lists of places to avoid. It shouldn't take three calls on initial contact to try to schedule a colonoscopy, but it did here. They're either disorganized or too busy to properly support a basic function - a new patient with a referral for a routine colonoscopy. Either way, I won't be one to burden them further at risk to my health. I called the number on my referral and was given a different number. The other number had a recording telling me to call the receptionist but did not give the number. I had to assume it was the first number. Then it was either wait for a month for an appointment or wait for a packet in the mail that will take weeks to process. read more

I called this practice a few times to make an appointment before someone finally answered and gave me another phone number to call. I called this number and was told to download and fill out some forms and submit them via fax or email. I did email the forms but received no receipt confirmation. I called a couple of times a few days later and was told that they received the forms and someone will contact me two weeks later. They did not. It has been more than a month and I am still waiting for a response. I sent them an email two days ago asking for a clarification but guess what? No one cared to reply. I have never seen such a careless medical practice in my long life. I will never refer anyone to them. I am ditching this practice and looking for another one. read more

I have been with this gastroenterologists group for years and had varying degrees of useful help. Invariably, my experience with the office in Reston has been very negative. The front staff are so obnoxious they make one cringe. I plan to go the extra distance to one of their other offices. Dr. Sabahi is VERY good and I am happy to travel to see him. read more

Where is the zero stars button? They don't answer their phones, they don't return calls, and test results are returned in nowhere even close to a timely manner. Dr. Sabahi is a nice guy - but his office is CRAP. read more

Couldn't be happier with this facility! They are all so kind and care about the patients. I would definitely recommend!

Procedure was professionally scheduled and managed. Trying to get a receipt for the service was not. Receptionist said this is "handled off site" and gave me the number of an accounting firm who said GCV repeatedly has steered people incorrectly to them. Let's see if my follow up call produces professional action. read more

I cannot say enough about the wonderful care I received from Dr. Blosser and his staff. Nothing but praise from scheduling to discharge. I was visiting from out of town and started having some GI issues. After calling Dr. Blosser's office,I was placed on the schedule in a few days. The staff was very reassuring and the center very clean.Thanks GCV read more

Worst Gastro center of virginia. That should be the new name. The receptionist two who claims to be working in this job for 14 years needs to learn how to do her job!! Get your act together and save your failing practive!! dr. hani sabahi read more

Rude (extremely) is the word for the employees here. There are too many other choices where the patient is treated kindly, especially for such an invasive procedure. I'd give it no stars if I could. read more