Dr. Kastens is a board certified gastroenterologist and an Associate Professor at the OU College of Medicine. He has a special interest in diagnosing and treating patients with esophageal motility disorders and Gastroesophageal Reflux Disease. Kastens completed a fellowship, residency and earned his medical degree at the OU College of Medicine.
Academic Section(s):
Digestive Diseases
Education:
University of Oklahoma College of Medicine
MD (1981)
Board Certification(s):
American Board of Internal Medicine
Internal Medicine (1984)
American Board of Internal Medicine
Gastroenterology (1987)
Residency:
University of Oklahoma Health Sciences Center
Internal Medicine (1984)
Fellowship:
University of Oklahoma Health Sciences Center
Gastroenterology (1986)
Bowman Gray School of Medicine, Winston Salem, NC
Esophageal Motility (1986)
Memberships:
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American College of Gastroenterology, Fellow (ACG)
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1989 - Present
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American Society for Gastrointestinal Endoscopy (ASGE)
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1989 - Present
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American Gastroenterological Association
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1986 - Present
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American Medical Association (AMA)
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1986 - 1988
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Oklahoma County Medical Society
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1986 - 1988
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Oklahoma State Medical Society
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1986 - 1988
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Clinical/Research Interests:
- Gastro-esophageal Reflux Disease
- Motility Disorders
- Colon cancer screening
Select Honors & Accomplishments:
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Outstanding Dedication and Commitment to Excellence in the Education of Endoscopy Skills to Gastroenterology Fellows Teaching Award, GI Fellowship Program (2014-2020)
Annual award voted on by the fellows]
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Board of Governors Service Award 2016-2017, American College of Gastroenterology, October 15, 2017
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Fellow, American College of Gastroenterology
- Alpha Omega Alpha (1981)
- Phi Beta Kappa (1977)
Select Publications:
Research Networking Profile
Grossen, A., Kastens, D. J., Salem, G. (2019). Metastatic Renal Cell Carcinoma to the Gastrointestinal Tract. Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association. PMID: 31499248. DOI: 10.1016/j.cgh.2019.08.051
Jacobs, B. A., Salem, G. A., Kastens, D. J. (2019). Black Esophagus: A Rare Cause of Upper Gastrointestinal Bleeding. Clinical Gastroenterology and Hepatology. PMID: 30876961. DOI: 10.1016/j.cgh.2019.02.046
Salem, G. A.*, Kastens, D. J. (2019). Double Pylorus: A Rare Complication of Peptic Ulcer Disease. Clin Gastroenterol Hepatol, 17(1), e1. PMID: 29246697. DOI: 10.1016/j.cgh.2017.12.01110
Syed, T., Farooqui, S., Tajammal, R., Mahmood, S., Kastens, D. J. (2018). Chilaiditi's Sign Associated with Acute Colonic Pseudo-obstruction: A Radiological Diagnosis. Cureus, 10(3), e2351. PMID: 29796363. DOI: 10.7759/cureus.2351
Syed, T. A., Salem, G., Kastens, D. J. (2017). Lower Gastrointestinal Bleeding Secondary to Intestinal Histoplasmosis in a Renal Transplant Patient. ACG Case Rep J, 4(e93). PMID: 28798941. DOI: 10.14309/crj.2017.93