About Services


Words from our patients

  • Google

    "Hands down the best GI I've been to in all my years. Cannot recommend more. Very informative and takes the time to listen and obviously actually cares."

    Patrick D.
  • Healthgrades

    "Dr. Flicker is an amazing GI doctor. Was very attentive to my problem. And suggested few different approaches.."

    Julia S.
  • Vitals

    "Under Dr. Flicker's care, I have returned to a normal healthy lifestyle within three months of my initial visit."

    Self-verified patient
  • Yelp

    "I really felt cared for as a person and would recommend Dr Atallah and is staff without reservation. I would give him 10-stars if I could!"

    Pho E.
  • Google

    "They are both talented, intelligent, and deeply passionate about providing the best care for their patients."

    Fatma H.
Advanced GI LLC
3000 North Halsted Street, Suite 623
Chicago, IL 60657
Phone: 773-453-2077
Fax: 773-281-6895
Office Hours

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