Useful information regarding your visit to our office!

Useful location and contact information.

Read answers to our most frequently asked questions.

Forms to download and complete prior to your appointment.

Our billing and insurance staff are available to answer all questions.

Learn more about endoscopic procedures.

Information about billing and how to pay your bills at our office.

You can park your car in our spacious lot for free

Click the map icon above to view all the nearby stores and restaurants

We are on the first floor for easy access

  • Dr. Troy and her staff are professional, caring, and committed to providing a comprehensive solution for your diagnosis. I highly recommend them.
    Catherine A. Patient
  • Thanks Dr. Troy for seeking to find solutions to my pain, not just band-aid the problem! You are a wonderful and patient doctor that listens so well! Every step of the way your staff was approachable and professional from the moment I stepped in the door.
    Lydia C. Patient
  • Everyone was helpful and very pleasant. The office is beautiful and functions very efficiently.
    Kathy L. Patient
  • The team is awesome! The care, concern, speed of results, communication and friendliness is one of the best experiences I have ever had within the medical field. Thank you for everything you do it is greatly appreciated! 2/15/19
    Rick A. Patient
  • I have had Ulcerative Colitis for over 20 years now and have seen many GI doctors but none as wonderful as Dr. Troy. She truly takes her time to listen and be completely through. She is an amazing doctor and I wish more doctors shared her wonderful disposition and ability to care about her patients.
    Erin P. Patient
  • Dr. Troy and her staff are incredibly caring and thoughtful! She answered every question and spent quality time. I highly recommend her.
    Ann C. Patient
  • I had an amazing experience and they made me feel very comfortable despite having to drink the prep solution all night long. They were very kind and took care of me very well. Dr. Troy was very caring and explain everything perfectly. I would totally recommend!
    Hannah W. Patient
  • The offices are new and clean and relaxed; they don't feel clinical. I especially enjoyed the creative use of toilet paper as tastefully placed wall decor in the clinic bathroom. Someone has a sense of humor! Staff was friendly, professional and efficient. Being able to choose music and post procedure snack options was surprising. Taking home a printout of the procedure with colored photos and an explanation was an amazing use of technology seemed almost magical, especially coupled with the Lindor chocolates. Thank you! The staff managed to turn an unpleasant procedure into a pleasant experience.

    Nancy R. 2/27/18
  • Dr. Troy and her team are constantly excellent. Everyone is on board to deliver a high-quality experience. It’s a team effort.
    Evelyn B. Patient
  • Everyone is very helpful. Liz Moon has been excellent with follow-up and care. I highly recommend the team and practice. 
    Kimberly N.  Patient
  • Everyone is so knowledgeable and caring. It all starts when you walk in the front door to the point of the end of your appointment! 
    Wendy B.   Patient
  • I am very, very pleased with the exceptional care both from the staff and Dr. Nathanson. One feels that they are the most important patient on the rosterGreat doc, great staff, great location
    Barbara G.   Patient
  • Dr. Troy and her staff were amazing! The billing department and Veronica went above and beyond to assist with an insurance issue and make sure all was ready to go for my procedure. Everyone was helpful and really worked to explain everything and put me at ease. I cannot recommend this office enough! Thank you for making an unpleasant procedure as pleasant as it could possibly be
    Kelly S.  Patient
  • Whenever I need Comprehensive Gastrointestinal Health’s services, I always know I am in good hands from start to finish. 
    William G.   Patient
  • Very friendly, helpful staff and great location! Dr. Nathanson is very caring, knowledgeable, and easy to understand. He has the ability to explain issues to the patient and make sure patient understands. 
    Oksana S.  Patient
  • Seeking out treatment for chronic medical conditions is a really scary and intimidating experience. I was so comforted by my first visit to Comprehensive Gastroenterology. My medical provider spent almost an hour with me getting to know me and my entire medical history, taking thorough notes, and paying attention to me not only as a patient but also as a person. I felt seen and heard which is something that can be very rare these days in healthcare. I'm really looking forward to the coming months of treatment with these providers and am really grateful for a great first visit. 
    Shannon L.  Patient
  • Dr. Nathanson is always a class act: professional, attentive, and most of all kind and caring. The new office and staff are a compliment to the Dr. and demonstrate a stellar example of how medical care should be delivered to all. Thank you again to the whole crew for a smooth experience for my colonoscopy! 
    Janet W.  Patient
  • Dr. Troy spent time to tell me about findings and recommendations. Lots of staff prior to the appointment to ask me if I needed anything - very attentive. 
    Jennifer D.  Patient
  • I highly recommend this practice. They have timely communication with patients, it was easy to make an appointment, the pre-procedure instructions were very thorough, and the staff, nurses, and doctors were very friendly and knowledgeable. My experience here was 100% better than my previous colonoscopy at a nearby suburban hospital.
    Brenda M.  Patient
  • My primary doctor recommended this practice. I was very happy. Staff listens and is very patient and friendly. I am very nervous about needles, but it was very smooth and relatively painless
    Caroline B.  Patient
  • These procedures are not very fun, but they do everything to make you feel comfortable and are professional. If you need this done, this is the place to go. The staff is very friendly and the doctors are accessible and friendly. 
    Paul V.  Patient
  • The entire experience was very smooth and pleasant. Dr. Troy and her staff are all very positive and professional. And the Mobile Anesthesia team could not have been nicer and professional. I was completely at ease throughout the experience. 
    Catherine C.   Patient
  • This process was seamless. The quality of care and the detailed instructions on a regular basis were great reminders for me. I knew exactly what I needed to do before the procedure. Everyone at the facility was kind and knowledgeable. Everything was clean. I would never do this procedure at a hospital. I’m recommending it to all my friends. Thank you, you are all very good at what you do. 
    Maureen L.  Patient
  • What a breath of fresh air! Dr. Nathanson was kind, considerate, a great listener, and really spent a lot of time with me. After being left hanging by another practice that didn't answer my questions and just left me hanging for months, this was so refreshing. I'm confident they will provide me with excellent care moving forward. 
    Jonathan M.  Patient
  • While getting a colonoscopy is not fun, Comprehensive Gastroenterology made the whole experience as comfortable as possible. From simplifying the preparation, through executing the procedure at an outpatient clinic
    Ellen R.  Patient
  • From the minute you walk in the door the staff is very friendly. Nurses are very informative. The procedure was so quick and painless. I highly recommend this practice! 
    Karin S.   Patient
  • I had a wonderful experience! The staff were incredibly kind, and they made me feel right at home and went over the top to make sure I felt comfortable. It was truly the best experience I’ve had with a scope before
    Autumngrace P.  Patient
  • Excellent care, I highly recommend Comprehensive Gastrointestinal Health. Everyone went well above and beyond to make my experience convenient, comfortable and pleasantI love the entire staff and especially Dr. Nathanson! 
    Marcia J.  Patient
  • Excellent care! My first upper GI endoscopy and my second colonoscopy were done here. Hardly any waiting (much faster than at a hospital), really good instructions for the colonoscopy prep (I appreciated the vegan meal ideas as I am a vegetarian). Everyone treated me with respect and care, and it was a relief to finally get diagnosis for my GI issues. 
    Susanne B.  Patient
  • Dr. Tara Troy and Comprehensive GI Health stands for excellence. Very professional and caring at the same time. They are so detailed in setting appointments. The prep is amazing and everything up to the procedure, is perfect. It’s 150% Perfect. I highly recommend this place and Dr. Tara Troy. They are really fitted to be in a medical field. They are so caring and explained thoroughly pre and post procedure. The Mobile Anesthesiologist that they worked with are also excellent.
    Zenaida B.   Patient
  • This establishment is top-notchThey get you in and out in a timely mannerThey are very professional. The place is very cleanAll staff members were genuinely friendly and cared about what they were doing. 
    Norman H.  Patient
  • The experience exceeded my expectations. Everyone was attentive, kind and extremely knowledgeable. Given the nature of the visit I was made to feel comfortable and still can’t believe how easy and effortless the whole experience was. I would highly recommend choosing this office and staff for your health needs. 
    Jennifer H.  Patient
  • Olivia and the phlebotomist that worked with me were so nice, professional and welcoming. I let them know ahead of time that I am typically not an easy blood draw due to rolling or small veins and both were amazing. 
    Shannon P.   Patient
  • Fantastic and efficient care with flexible hours for busy professionalsThe staff is very courteous and helpful, and the providers listen to your concerns. 
    Kim T.  Patient
  • Each and every person I encountered at this practice was professional, competent, and extremely kind. Very knowledgeable. Highly recommend. 
    Jacqueline E.   Patient
  • Everything about this practice is EXCELLENT from the scheduling, staff, email/text correspondence, anesthesia staff, and the amazing physicians. I have had a colonoscopy with both doctors & would highly recommend both of them. I was ESPECIALLY IMPRESSED by my anesthesiologist. AMAZING & SO CARING 🙂 This practice is TOP NOTCH!!!! 
    Pamela N.   Patient
  • The day of procedure was everything I’d love medical care to be—on time but not rushed, opportunity to ask questions, everyone was friendly, environment seeded with the feeling of competence…everyone gave the vibe of confidence in their ability to provide exceptional care. Couldn’t have been happier with my first colonoscopyPre-procedure instructions were clear and easy to follow which resulted in a good prep. Follow up after procedure was clear and concise.
    Emily V.  Patient

Want to schedule an appointment?

Call us at (224) 407-4400 or complete the appointment request form.