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Ramon A. Riojas, M.D., Ph.D.

Ramon A. Riojas, M.D., Ph.D.

Clinical Fellow (PGY-8)
Thoracic Surgery

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Austin College, TX, B.A., Biochemistry, 1999

University of Texas Health Sciences Center in San Antonio, Ph.D., Biochemistry, 2007

Uniformed Services University of Health Sciences, MD, 2010

  • Keesler Medical Center, Keesler AFB, General Surgery 2010-2016
  • Keesler Medical Center, Research Fellowship, 2011-2012
  • American Board of Surgery, General Surgery
  • General Thoracic and Cardiac Surgery
  • ECMO
  • Minimally invasive surgery
  • Robotic assisted Surgery
  • Simulation training

Ramon Riojas, M.D., Ph.D., is currently a Thoracic Surgery fellow at UCSF. He began his education at Austin College in Sherman, TX earning a BA in Biochemistry. He pursued a PhD in Biochemistry at the University of Texas Health Sciences Center in San Antonio, TX working in the lab of Dr. Feng Liu and Dr. Lily Dong. His research included characterizing the insulin signaling pathway and the role of PDK-1 phosphorylation. He joined the United States Air Force and attended the Uniformed Services University Medical School in Bethesda, MD. After earning his MD in 2010, he continued his training at Keesler Medical Center, Keesler AFB in Biloxi, MS. He did a research fellowship at Keesler in 2011-2012 and was chief resident in 2015-2016. He remained on staff at Keesler as a General Surgeon for two years, during which time he deployed to Iraq in support of Operation Inherent Resolve in 2017. He transferred to Travis AFB, CA as a general surgeon and the Surgery Disaster Team Chief. He is currently taking a hiatus from active duty in the USAF while undergoing fellowship training.

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ORCID iD: 0000-0002-5486-6243 Additional info
  • Potential novel regulation of PDK-1 by phosphorylation
    Sponsor ID:
    Funding Period:
    Apr 2005
    Mar 2006
    Principal Investigator
Data provided by UCSF Profiles, powered by CTSI
  1. Pizano A, Riojas R, Ailawadi G, Smith RL, George T, Gerdisch MW, Di Eusanio M, Castillo-Sang M, Ramlawi B, Rodriguez E, Morse MA, Doolabh NS, Jessen ME, Wei L, Chu MWA, Berretta P, Cura Stura E, Salizzoni S, Rinaldi M, Kaneko T, Tang GHL, Chikwe J, Roach A, Trento A, Badhwar V, Nguyen TC. Minimally Invasive Mitral Valve Surgery After Transcatheter Edge-to-Edge Repair. Innovations (Phila). 2022 Jan-Feb; 17(1):42-49. View in PubMed
  2. Guenther TM, Sherazee EA, Curtis BC, Riojas RA. Acute Exercise Induced Compartment Syndrome in an 22-Year-Old Active-Duty Man and Review of the Literature. Mil Med. 2020 09 18; 185(9-10):e1829-e1832. View in PubMed
  3. Iverson K, Riojas R, Sharon D, Hall AB. Objective comparison of animal training versus artificial simulation for initial cricothyroidotomy training. Am Surg. 2015 May; 81(5):515-8. View in PubMed
  4. Hall AB, Riojas R, Sharon D. Comparison of self-efficacy and its improvement after artificial simulator or live animal model emergency procedure training. Mil Med. 2014 Mar; 179(3):320-3. View in PubMed
  5. Liu M, Zhou L, Wei L, Villarreal R, Yang X, Hu D, Riojas RA, Holmes BM, Langlais PR, Lee H, Dong LQ. Phosphorylation of adaptor protein containing pleckstrin homology domain, phosphotyrosine binding domain, and leucine zipper motif 1 (APPL1) at Ser430 mediates endoplasmic reticulum (ER) stress-induced insulin resistance in hepatocytes. J Biol Chem. 2012 Jul 27; 287(31):26087-93. View in PubMed
  6. View All Publications
  1. Riojas, RA, The Military Surgeon, Grand Rounds Lecture, Keesler Medical Center, 25 July 2018.
  2. Riojas, RA, Iverson K, Sharon D, Hall A. Randomized Objective Comparison of Live Animal Training versus Artificial Simulation for Initial Cricothyroidotomy Training. Military Health System Research Symposium, 2013, Fort Lauderdale, FL.
  3. Riojas, Ramon A., Retrospective Review of the Combined Use of Proximal and Distal Cerebral Protection Devices During Carotid Artery Angioplasty and Stenting, Society of Air Force Clinical Surgeons, May 2012, San Antonio, TX
  4. Riojas, Ramon, A., Laparoscopic Skills Training of General Surgery Residents, Society of Air Force Clinical Surgeons, May 2012, San Antonio, TX
  5. Ramon A. Riojas, Xuming Mao, Derong Hu, Lily Q. Dong and Feng Liu. Insulin Stimulated Phosphorylation Of Pdk-1 At Ser244 And Ser163: A Potential Mechanism Of Regulation. Oral Presentation, American Diabetes Association, 64th Scientific Sessions, Orlando, FL, 2004.


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