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Gastroenterology Associates

Upstate SC

Timely Relief

for Digestive Discomfort

Gastroenterologists who will listen.

Low-cost &
high-quality care
Urgent cases can be
seen within 24 hours
Timely answers to your
digestive issues

Find The Problem

Don’t Let Digestive Discomfort Control Your Daily Life!

Experiencing unusual digestive discomfort can cause pain and anxiety, making you self-conscious about your symptoms.

5

Convenient Office Locations

In the Upstate of South Carolina

4

Endoscopy Centers

With state-of-the-art equipment

5

In-House Labs

Offering convenient access for lab work

Our Polyp Detection Rate Exceeds the National Average
0 +
Procedures at Our Endoscopy Centers

Each Year

0
Board-Certified Physicians

3

Female Physicians

8

Nurse Practitioners

4

Physician Assistants
Verified Patient
Verified Patient
Dr Palma was very pleasant when he introduced himself to me, he made me feel like I was in good hands. He was very punctual, the procedure went well, the entire staff was superb.
Verified Patient
Dr. Vitorsky is awesome. She listens and is very caring. The entire staff is very kind.
Verified Patient
Staff was great and informative. Dr Gaines gave me ample opportunity to ask questions. Nice clean facility.
Verified Patient
Had an upper and lower GI performed at the same appointment by Dr Geist. Although those are never pleasant due to the prep associated with them, my experience was great. I was expecting the procedure to take a bit longer than it actually did. Staff was friendly and seemed concerned about the health and comfort of the patients. Dr Geist was caring and took the time to answer all my questions in my office appointment as well as before and after the procedure. Communication throughout the time from my referral through the procedure was excellent.
Verified Patient
My experience was amazing Dr. D. Gulley was wonderful and his staff was also. Thank you.
Verified Patient
The doctor i saw was very knowledgeable and easy to talk to. He had looked over my chart before coming in the room, I appreciated that. Also he didn't seem to be rushing to get out rhe door- like some who ask you "anything else " with their hand on the door knob. The staff was awesome too.
Verified Patient
Dr. Carandang is Awesome! Simply because he listened and gave great feedback on my concerns and explained the next steps to my health issues well.

Why Choose Gastroenterology Associates?

  • We’re the largest GI practice in South Carolina.
  •  We are a physician owned practice.
  •  Our Open Access Program makes it easy for you to schedule a screening procedure.
  • Our providers serve Prisma Hospital System and Pelham Medical Center.
    • Your provider has access to your medical records from both hospital systems.
  • We participate in Prisma Health Upstate Network, an Accountable Care Organization.​
  • Having your colonoscopy at an ambulatory surgical center can be up to 75% cheaper than at a hospital setting.​

Get the timely answers you need to improve your health.

We are committed to seeing urgent cases within 24-48 hours.

What is a polyp detection rate?

Adenoma Detection Rate (ADR) is the measurement that best reflects how carefully a doctor performs a colonoscopy. This rate is the percentage of patients undergoing a screening colonoscopy who have one or more precancerous polyps detected.

Gastroenterology Associates has an average ADR of 37% with a 43% ADR in males and 31% ADR in females.

Gastroenterology Associates

Upstate South Carolina

Patient Portal

Better Healthcare. Better Results.

  • Eliminate time-consuming phone calls
  • Get fast & private communication with our clinical staff
  • View, download & share your personal health record (including medications, immunizations & test results)
  • Get appointment reminders
  • Request prescription refills
  • View lab, pathology and procedure results
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Our Clemson and Spartanburg locations (Office, Endo Center, and Lab) will be closed March 16–20, 2026.

During this time, patients needing lab work—including stool kit drop-off—may visit our Halton Road, Augusta Road, or Simpsonville offices. For urgent needs, you may also visit a Quest Diagnostics location.

Thank you! We appreciate your understanding!

     (864) 232-7338
     gastroassociates.com

Research Study Now Enrolling

Past, Present & Future Trials:

  • Ulcerative Colitis
  • Crohn’s Disease
  • Non-interventional registries
  • Colorectal Cancer Screening
  • Celiac Disease
  • Hemorrhoids (coming soon!)
  • Anal Fissures (coming soon!)

Save Time & Money

Schedule a screening colonoscopy now without an office visit