Dr. Gancayco is on Doximity
As a Doximity member you'll join over two million verified healthcare professionals in a private, secure network.
- Gain access to free telehealth tools, such as our “call shielding” and one-way patient texting.
- Connect with colleagues in the same hospital or clinic.
- Read the latest clinical news, personalized to your specialty.
Office
3551 Roger Brooke Dr
Fort Sam Houston, TX 78234Phone+1 210-916-2338
Education & Training
- Yale-New Haven Medical CenterFellowship, Gastroenterology, 2008 - 2011
- San Antonio Uniformed Services Health Education ConsortiumResidency, Internal Medicine, 2005 - 2008
- UniforMed Services University of the Health Sciences F. Edward Hebert School of MedicineClass of 2005
Certifications & Licensure
- MT State Medical License 2018 - 2026
- TX State Medical License 2017 - 2026
- VA State Medical License 2007 - 2024
- American Board of Internal Medicine Gastroenterology
Clinical Trials
- Ketamine for Endoscopic Sedation in Outpatient Adult Endoscopy. Start of enrollment: 2018 Mar 05
Publications & Presentations
PubMed
- 5 citationsAcute intestinal ischaemia from a portal vein thrombosis in a young female smoker on an oral contraceptive.John Hunninghake, Brian Patrick Murray, David Ferraro, John Gancayco
BMJ Case Reports. 2018-08-04 - 5 citationsEverolimus Implicated in Case of Severe Gastrointestinal Hemorrhage.Paul Gonzales, Seth Klusewitz, Johanna Marowske, John Gancayco, Michael B. Osswald
Case Reports in Oncological Medicine. 2017-06-28 - 62 citationsAnesthesiologist involvement in screening colonoscopy: temporal trends and cost implications in the medicare population.Vijay S. Khiani, Pamela R. Soulos, John Gancayco, Cary P. Gross
Clinical Gastroenterology and Hepatology. 2012-01-01
Viewing the full profile is available to verified healthcare professionals only.
Find your profile and take control of your online presence: