No Referral Required

Team of healthcare providers specializing in digestive system treatment and prevention, exemplifying excellence, compassion, and integrity.

About Us

Founded in 1978, Gastroenterology Associates is the largest physician-owned Gastroenterology group in South Carolina. With 19 physicians, 12 advanced practice providers, 5 offices and 4 endoscopic ambulatory surgery centers (ASCs), Gastro Associates provides comprehensive care in Gastroenterology and Hepatology. Leading the industry in quality metrics, our board-certified physicians offer the latest diagnostic and treatment plans with professional and compassionate care. 

Dr. James D Gould, MD

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Our history of patient care began more than four decades ago by our founder Dr. James D. Gould. Dr. Gould was the first physician in Greenville, South Carolina to specialize in gastroenterology. He announced the formation of Gastroenterology Associates, P. A. at the Greenville Medical Center Building in July 1978. The practice was specialized to only gastroenterology and currently remains the same as of today. Dr. James D. Gould’s teaching and dedicated training approach has contributed to Gastroenterology Associates becoming the largest and most experienced gastroenterology practice in the whole state of South Carolina. Starting with one office and two physicians, Dr. Gould’s dream has now grown to five offices, four endoscopy centers, and nineteen physicians. We will continue to honor Dr. James D. Gould by supporting the foundation of his ethics and trust that was founded by him as a physician.  

Dr. James D. Gould, January 14, 1939 – March 17, 1986 

We Will Provide You With High Quality Medical Care

We will treat you with kindness and respect. We will serve you with honesty, and we appreciate that you allow us to participate in your healthcare.

We provide the latest diagnostic testing and treatment. We evaluate and manage patients with GI problems such as GERD, Peptic Ulcer disease, Gallbladder disease, IBS, Inflammatory Bowel diseases (ulcerative colitis, Crohn’s disease), Liver diseases, Pancreatic disease, Diverticulitis, difficulty swallowing and Colonoscopy for Cancer Screening.

We have easy access to high-level care with five offices and four endoscopy centers in the Upstate! We look forward to providing you with the advanced care every patient deserves. Our endoscopy centers offer a cost effective alternative for outpatient procedures.

Our Providers

At Gastroenterology Associates, P.A., our medical staff is composed of Gastroenterologists, Physician Assistants, Nurse Practitioners, certified medical assistants, nurses, and endoscopy technicians, who are all committed to treating our patients with kindness and respect. Our board certified physicians specialize in treating all types of acute and advanced gastroenterology disorders.

Physicians

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Dr. Matthew Barnes

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Dr. Stephen P. Brackbill

Dr. Christopher J. Fyock smiling, wearing a blue checkered shirt and striped bow tie, gray background.

Dr. Christopher J. Fyock

Isaac Gaines smiling in a white shirt and striped tie against a light gray background.

Dr. D. Isaac Gaines

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Dr. Jared Geist

Dr. David Gulley dressed in a blue shirt and striped tie, smiling against a neutral background.

Dr. David Q. Gulley

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Dr. Anthony Horton

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Dr. P. Allen Jones

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Dr. Alex J. Kovalic

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Dr. Joseph S. Lebel

Dr. Katelyn Madigan smiling, wearing a blue top with long blonde hair against a neutral background.

Dr. Katelyn E. Madigan

Dr. Paul Maz in a white coat with "Paul Maz MD" embroidered, smiling against a neutral background.

Dr. Paul A. Mazanec

Dr. Ayub Merchant in a blue striped shirt, wearing glasses, standing against a gray background.

Dr. Ayub A. Merchant

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Dr. Peter A. Naas

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Dr. David T. Palma

Ritu Saha, in a blue ruffled top, smiles confidently, reflecting her medical training and decade in India, Atlanta, and New York.

Dr. Ritu F. Saha

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Dr. Madhusudhan Sunkavalli

Hiren Vallabh smiling in a checked shirt against a neutral background, embodying professionalism.

Dr. Hiren Vallabh

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Dr. Olga Vitorsky

Why Choose a Gastroenterologist?

Gastroenterologists are medical doctors who specialize in the digestive system. They receive extensive training and experience in diagnosing and treating gastrointestinal issues. When it comes to colonoscopies, their specialized knowledge ensures a higher level of accuracy and precision in detecting abnormalities. Also, they typically complete additional fellowship training specifically focused on endoscopy procedures like colonoscopies. Many studies have demonstrated that a gastroenterologist has a higher adenoma detection rate (ADR) compared to a surgeon. This means that a gastroenterologist has a higher percentage of detecting one or more precancerous polyps during your colonoscopy!

Gastroenterologists must maintain board certification, unlike surgeons, which involves staying up to date with the latest advancements in their field. They are equipped to handle any unexpected issues that may arise during a colonoscopy. Their in-depth knowledge allows them to make real-time decisions and provide immediate solutions, ensuring your safety throughout the procedure.

Advanced Practice Providers

Eric Carandang, PA-C

Jennifer Garren, APRN-C, smiling in a teal top, light background.

Jennifer Garren, APRN-C

Julie Hammond, APRN-C, smiling in a blue blouse with a neutral background.

Julie H. Hammond, APRN-C

Chandler K. Hunt, PA-C, wears a red floral blouse and glasses, smiling against a neutral background.

Chandler K. Hunt, PA-C

Alexis, a professional in healthcare, wearing a black beaded neckline top, smiles warmly.

Alexis D. Jones, APRN-C

Cindy Loeb, FNP

Tracy Luther, APRN-C, smiling with blonde hair, wearing a floral shirt against a gray background.

Tracy Luther, APRN-C

Nikki Morgan, APRN-C, smiling in a professional black dress against a neutral background.

T. Nikki Morgan, APRN-C

Allyson Naylor smiling while wearing a maroon blouse against a light background.

Allyson Naylor, PA-C

Sabrina Raja smiling, wearing glasses and a maroon blouse against a neutral background.

Sabrina S. Raja, PA-C

Teresa Truman, APRN-C, smiling with curly blonde hair and wearing a red sweater.

Teresa Truman, APRN-C

Beejal Vadhar, APRN-C, smiling in a floral blouse against a neutral background.

Beejal Vadhar, APRN-C

Why does Gastroenterology Associates utilize Nurse Practitioners and Physician Assistants?

Gastroenterology Associates is a specialty practice.

Physicians divide their time between patients in the office, performing procedures and rounding at the hospital. Because their schedules are varied and rotate frequently, they may not always be available for an appointment that works with the patient’s schedule. To ensure your healthcare concerns are addressed in a timely manner, Gastroenterology Associates employs Physician Assistants (PA) and Nurse Practitioners (NP). They are sometimes referred to as Advanced Practice Providers (APP). These healthcare providers work closely with your physician to ensure that the care you receive follows the treatment plan designated by your physician.

Nurse Practitioners and Physician Assistants may also care for you in the hospital. Gastroenterology Associates uses these providers to provide an additional level of care for their patients. Often they follow a patient from admission through discharge so that patients are seen each day by the same provider in addition to the physician who is “rounding” at the hospital. You might also be seen in the office by APP for hospital follow up care.

A Physician’s Assistant or Nurse Practitioner will not replace your regular physician, or perform procedures. You may see the NP or PA for medication refills or to review test results. A Physician Assistant is someone who has a degree from an American Medical Association approved school, and a Bachelors of Science or a Masters of Science Degree. They must pass national board exams and the Medical Practice Act exam. They can perform medical exams, order tests and prescribe medications. A Nurse Practitioner is a Registered Nurse who has an advanced Masters in Nursing from an accredited school and takes national certification exams to become an APRN – Advanced Practice Registered Nurse. They can perform medical exams, order tests and prescribe medications.

Retired Physicians

Michael Crowley, a retired gastroenterologist, wearing a dark suit and tie against a gray background.

Dr. Michael L. Crowley

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Dr. Glen G. Daves

Retired gastroenterologist Dr. Richard Greer smiling, wearing a suit and tie against a neutral background.

Dr. Richard C. Greer

Dr. Greg S. Holt in a blue plaid shirt, arms crossed, stands confidently in an office setting.

Dr. Greg S. Holt

William Holt in a blue shirt and vest, standing outdoors with greenery in the background.

Dr. J. William Holt

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Dr. Forrest K. Huntington

Retired Dr. Michael Kelly, gastroenterologist, in a suit with a red tie against a gray background.

Dr. Michael W. Kelly

Suzy Kim smiling outdoors, embodying her approach to patient care and fostering collaborative relationships.

Dr. Suzy L. Kim

Dr. Michael Rickoff wearing glasses and a white shirt with a patterned tie, smiling with a green background.

Dr. Michael I. Rickoff

Judith Spivey smiling, wearing a blue shirt with "Retired" text displayed in the corner.

Dr. Judith A. Spivey

Stephen Yarborough smiling, wearing glasses and a blue checkered shirt against a grey background.

Dr. C. Stephen Yarborough

Retired gastroenterologist Richard Zander in a gray suit with a distinguished, professional appearance.

Dr. Richard E. Zander

Gastroenterology Associates

Upstate South Carolina

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