Dr. John Gancayco MD Gastroenterologist

Dr. John Gancayco is a gastroenterologist in Lackland A F B, Texas. He received his medical degree from Uniformed Services University of the Health Sciences and has been in practice for 5 years.

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Office Location

See Contact Information

Specialty & Clinical Interests

Gastroenterologist: General Gastroenterology

Education & Medical Training

San Antonio Uniformed Services Health Education Consortium
Residency, Internal Medicine, 2005 - 2008

Yale-New Haven Hospital
Fellowship, Gastroenterology, 2008 - 2011

Uniformed Services University of the Health Sciences
Class of 2005

Certifications & Licensure

American Board of Internal Medicine
Certified in Gastroenterology

American Board of Internal Medicine
Certified in Internal Medicine

VA State Medical License

Publications & Presentations

Age-based and Sex-based Disparities in Screening Colonoscopy Use Among Medicare Beneficiaries.
Gancayco, J.,Soulos, P. R.,Khiani, V.,Cramer, L. D.,Ross, J. S.,Genao, I.,Tinetti, M.,Gross, C. P.

Narrow band imaging features and pathological correlations of sessile serrated polyps.
Gancayco, J., Siddiqui, U. D., Jain, D., Aslanian, H. R.

Anesthesiologist involvement in screening colonoscopy: temporal trends and cost implications in the medicare population.
Khiani, V. S., Soulos, P., Gancayco, J., Gross, C. P.

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