The medical team and administrative professionals at Oak Ridge Gastroenterology Associates are committed to providing you with excellent care. We’re all partners in your care, and we believe that is what has helped shape our reputation as a leading provider of gastroenterology in East Tennessee. Thank you for giving us the opportunity to tell you a little more about our team.
More than 60 years combined experience!
Our physicians are experts in the management of diseases of the gastrointestinal tract – the stomach, intestines, esophagus, liver, pancreas, colon and rectum.
They earned their medical degree after four years of training in a variety of clinical settings, completing core rotations, and passing the United States Medical Licensing Exam. They then went on to complete a three year residency and a two to four year fellowship to get hands on experience with patients and become familiar with the setting and team that is involved with patient care.
Patient Referrals
Click here for referral information for our physicians.
Our Gastroenterology Team
Venkata C. Gourineni, MD
In practice since 2016
Clinical Interests
- General gastroenterology
- Colon cancer screening
- Diagnostic and therapeutic endoscopy
- Liver, gallbladder, and biliary diseases
- Cirrhosis and complications management
Residency
Internal Medicine – Bridgeport Hospital in a liation with Yale University School of Medicine, 2013
Fellowship
Gastroenterology and Hepatology – Bridgeport Hospital in a liation with Yale University School of Medicine, 2016
Professional Memberships
- Member of Royal College of Physicians, London
- American College of Gastroenterology
- American Gastroenterological Association
- American Society for Gastrointestinal Endoscopy
Allison Locke, MD
In practice since 2018
Clinical Interests
- General gastroenterology
- Liver cirrhosis
- Colorectal cancer screening
Medical School
East Tennessee State University
Quillen College of Medicine, 2011
Residency
Internal Medicine,
East Tennessee State University
Quillen College of Medicine, 2014
Fellowship
Gastroenterology,
East Tennessee State University
Quillen College of Medicine, 2018
Professional Membership
Member of American Gastroenterological Association
Charles Orton, MD
In practice since 2016
Clinical Interests
- Esophageal disorders
- Peptic ulcer disease
- Celiac disease
- Pancreatitis
- Colon cancer screening
Residency
Internal Medicine – University of Virginia, 2013
Fellowship
Gastroenterology – University of Virginia, 2016
Professional Memberships
- Member of Alpha Omega Alpha
- Member of American College of Physicians
- Member of American Medical Association
- Member of American College of Gastroenterology
- Member of American Society for Gastrointestinal Endoscopy
Ronald Wray, MD
Dr. Wray is not currently accepting new patients.
In practice since 1992
Advanced Procedural Skills
- ERCP
- Balloon Enteroscopy
- Capsule Endoscopy
Residency
Internal Medicine – The Mayo Clinic, 1990
Fellowship
Gastroenterology – Vanderbilit University, 1992
Board Certifications
Internal Medicine and Gastroenterology
Katasha Flatt, NP-C
Certified Nurse Practitioner
Clinical Interests:
- Hepatology
- Inflammatory Bowel Disease
- Celiac Disease
Education:
Master of Science in Nursing,
King University
Bristol, TN
Bachelor of Science in Nursing,
Carson-Newman University,
Jefferson City, TN
Bachelor of Arts in Biology,
University of Tennessee
Chattanooga, TN