Clinton G. Wallis, M.D. was born in Stillwater, Oklahoma, and grew up in the Tulsa area. He earned his undergraduate degree from Oklahoma State University. Dr. Wallis completed an internship at the University Of Oklahoma Health Sciences Center and received his residency and clinical fellowship training at the University Of Missouri-Columbia School Of Medicine.
Clinton G. Wallis, M.D. was born in Stillwater, Oklahoma, and grew up in the Tulsa area. He earned his undergraduate degree from Oklahoma State University. Dr. Wallis completed an internship at the University Of Oklahoma Health Sciences Center and received his residency and clinical fellowship training at the University Of Missouri-Columbia School Of Medicine.
The reviews listed below were collected independently of Oklahoma Sports Science and Orthopedics through rater8. Each review represents an authentic and verified patient experience.
Very thorough
(1 week ago)
Nov-2025
Dr was concerned about my issue
(2 weeks ago)
Oct-2025
Spends time w’me & answers each question thoroughly! Professional, punctual & has high expectations of himself & staff.
Feel fortunate to be his patient!
(1 month ago)
Sep-2025
Conveyed process of visit very well, very professional. Front office and nursing staff very professional as well.
(2 months ago)
Aug-2025
Good guy!
(2 months ago)
Aug-2025
I love the dr. He's so nice and funny going to him for several years always come back when it's time
(4 months ago)
Jul-2025
The Best he’s like he has a little country in him !!!!
(4 months ago)
Jul-2025
Glad I found this doctor. He’s a great one.
Floyd Rauh
(4 months ago)
Jun-2025
Very kind and caring…always patient and really listens. So glad I found him!!
(5 months ago)
Jun-2025
This was my initial visit. I liked his confidence, forthrightness, and professionalism. He was very knowledgeable and gave me some much needed direction. I left believing he could take care of my medical needs.
(6 months ago)
May-2025
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Gastro - Clinton Wallis
6516 N Olie Ave Oklahoma City, OK 73116
OSSO OSC - Clinton Wallis
3100/3115 SW 89th Oklahoma City, OK 73159
Clinton G. Wallis, M.D. was born in Stillwater, Oklahoma, and grew up in the Tulsa area. He earned his undergraduate degree from Oklahoma State University. Dr. Wallis completed an internship at the University Of Oklahoma Health Sciences Center and received his residency and clinical fellowship training at the University Of Missouri-Columbia School Of Medicine. He is a member of the American College of Gastroenterology, the American Society of Gastroenterological Endoscopy, American Gastroenterology Association, Arkansas-Oklahoma Endoscopy Society and the Oklahoma State Medical Association.
Dr. Wallis is dual board-certified in both internal medicine and gastroenterology and has completed extensive training in the diagnosis and treatment involving disorders of the esophagus, stomach, small intestine, colon, liver, pancreas, gallbladder and utilizing the anorectal pathology including hemorrhoids.
Apart from the many endoscopic procedures performed to diagnose and treat those conditions outlined above, he is also trained in non-surgical treatment of hemorrhoids utilizing the CRH-O’Regan hemorrhoid Banding System. This method is a unique and effective, non-surgical procedure that can be performed in the office with minimal discomfort or downtime.
See other doctors in Oklahoma Sports Science and Orthopedics
Very thorough
Dr was concerned about my issue
Spends time w’me & answers each question thoroughly! Professional, punctual & has high expectations of himself & staff. Feel fortunate to be his patient!
Conveyed process of visit very well, very professional. Front office and nursing staff very professional as well.
Good guy!
I love the dr. He's so nice and funny going to him for several years always come back when it's time
The Best he’s like he has a little country in him !!!!
Glad I found this doctor. He’s a great one. Floyd Rauh
Very kind and caring…always patient and really listens. So glad I found him!!
This was my initial visit. I liked his confidence, forthrightness, and professionalism. He was very knowledgeable and gave me some much needed direction. I left believing he could take care of my medical needs.