Welcome to GI North where we are dedicated to providing every patient with excellent care.

Call to schedule an appointment:

Monday - Friday (Sat & Sun - CLOSED)

+(404) 446-0600



Suite 290 Cumming, GA 30040

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Call For An Appointment:

Mon-Fri (Sat & Sun - CLOSED)

+(404) 446-0600



Suite 290 Cumming, GA 30040

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Our Practice

GI-North  >  Our Practice

One team bringing excellence in patient care

To achieve our mission, we will be guided by these values: Understanding, Compassion, Caring, Commitment, Quality and Respect.

Gastroenterologists Dr. Simon R. Cofrancesco, M.D. and Dr. Sergio Quijano, M.D., are dedicated to providing every patient with excellent care. Our clinic specializes in treating diseases of the digestive system, and all doctors and staff are focused on delivering a comfortable visit. We pride ourselves on responsiveness and attempt to provide timely appointments, especially when urgency exists.

Affiliated with Northside Hospital-Forsyth, GI North utilizes the latest in diagnostic technology for colonoscopies, upper endoscopies, and other colon cancer screening procedures. Located in Cumming, Georgia, we serve the greater Atlanta Metro area communities, including Alpharetta, Johns Creek, Suwannee, Duluth, Milton, Dawsonville, and Dahlonega.

Patient-Focused Care

Explore GI North's digital office:

Call us to schedule an appointment

GI North is located in Cumming, Georgia, a suburb of Atlanta. If you have questions regarding directions, procedures, or scheduling, please give us a call at 1.404.446.0600.

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Meet our caring providers

Each member of our team is happy to facilitate your experience by assisting you with any and all questions and concerns. We look forward to serving you soon.

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View our procedures and services

Do you suffer from heartburn, difficulty swallowing, upper or lower abdominal pain, bloating, nausea, vomiting, constipation, or diarrhea? If so, schedule an appointment with our professional and caring staff of medical professionals.

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Why Choose GI North?

If you prefer a doctor who is Spanish speaking, you now can request Dr. Sergio Quijano. Originally from Lima, Peru, he is fluent in Spanish and looks forward to helping Spanish speaking individuals to communicate their needs. Gi-North strives to offer the best care for each individual and knows it can be helpful when both patient and doctor are able to communicate clearly about health issues.

  • Offering the best clinic services in Georgia
  • Featuring top-rated doctors in the country
  • Number one treatments for upper endoscopies
  • Quality care for every patient, every time

I can’t say enough positive things about this practice. I’ve suffered from GI issues my entire life. I have been repeatedly subjected to the same useless, expensive diagnostics to no avail. Dr. An has done more to help me in 7 months than all of my other GI docs combined. Foremost, he listened. Actually listened to me which was a first. Then, he prescribed non-invasive testing (covered 100% by insurance) which I never knew was even an option. Upon my diagnosis, he prescribed a medication that was not covered by my insurance ($680 worth). My pharmacy called to break the news and told me she alerted Dr. An. Within an hour, I received a message saying they contacted my insurance and my prescription was now covered at 100%. I have never had a doctor take care of things so expeditiously. I am beyond grateful

- Jennifer Kemp

Keep up the outstanding work!

I was very pleased from the start to the finished. Everyone was very good and i has total trust the whole time. I felt like I was treated special but I feel like everyone gets the same very good treatment.

- James Richard Terrell

Very Professional Practice!

I was really anxious before my procedure. The whole staff from check in to check out were very understanding and put me right at ease. The procedure was so easy and the team was very efficient!. I would highly recommend GI North, the staff, and Dr. Sergio Quijano to anyone needing a good GI practice

- John Owen

Thank you all!

Tracy greeted me right away with a lovely smile. Her warm personality, caring professionalism and clear instruction made my experience very positive the day of my colonoscopy. Anyone who receives her nursing expertise is lucky indeed. I would also like to say that the entire staff was very pleasant and the procedure went smoothly. Dr. Cofrancesco made me feel relaxed in his capable hands, with clear and patient explanations.

- Janis Sandvig

Thank you, Dr. Cofrancesco!

I had my follow up yesterday with Dr. Cofranceso, and I wanted you to know how much I appreciated the thoroughness of every step in the process of my appointments and interaction with the staff. I have been very impressed with Dr. Confrancesco's bedside manner and explanations of the findings on each of my procedures. I am grateful to him and the lovely staff at GI North.

- B.L.A

Thank you, Dr. Cofrancesco!

I want to thank you again for providing such a wonderful and painless service. In my book, you’re the best! Thank you so much.

- D.B.

To Dr. Cofrancesco:

I wanted to thank you and your associates for such a wonderful experience. It was comfortable and reassuring. I appreciate the care!

- R.W.

Dear Dr. Cofrancesco,

Thank you for your thorough attention to my pancreatitis diagnosis. Having an empathetic and caring doctor means more than you know.

- L.H.

Get More Information

Learn more about our INSURANCE options we accept, our CANCELLATION policy, and PRESCRIPTIONS.


We accept most major insurance plans, including Aetna, all Medicare Supplement Plans PPO’s and HMO’s, BCBS PPO/POS, and Care Improvement. All are listed on our website. Please contact us if you have any questions. A referral from your primary care physician may be necessary depending on your insurance plan.

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We ask that you give us 24 hours notification for an appointment cancellation and 72 hours notification for a procedure cancellation.

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New prescriptions are handled at the time of your office or procedure visit. For prescription refills, please contact your pharmacy and ask them to fax us a refill request, which will be handled within 48 hours.
Our doctors are available 24 hours a day, seven days a week. If you have a medical emergency or an urgent question, our physicians can be reached via answering service by calling our main number 1.404.446.0600. For routine scheduling, billing, and pharmacy questions, please call during regular business hours.
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Clinic and Endoscopy Center Hours

GI North is located in Cumming, Georgia, a suburb of Atlanta. Questions regarding directions? Call 1.404.446.0600.

Monday: Clinic: 8am - 5pm, Endo: 7am - 4pm
Tuesday: Clinic: 8am - 5pm, Endo: 7am - 4pm
Wednesday: Clinic: 8am - 5pm, Endo: 7am - 4pm
Thursday: Clinic: 8am - 5pm, Endo: 7am - 4pm
Friday: Clinic: 8am - 5pm, Endo: 7am - 4pm
Saturday: Closed
Sunday: Closed