School of Medicine
Showing 1-10 of 15 Results
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M. Usman Ahmad
Postdoctoral Scholar, General Surgery
BioDr. Ahmad is currently a postdoctoral research fellow under the mentorship of Prof. George Poultsides in the Section of Surgical Oncology at Stanford University. In addition, he engages in basic scientific inquiry in tumor immunology under Prof. Amanda Kirane. As part of an interdisciplinary team, Dr. Ahmad is currently investigating the role of the intratumor microbiome and response to treatment for patients with pancreatic cancer funded by the Stanford Cancer Institute (SCI) and Sarafan ChEM-H. He entered his current position after completing 2 years of general surgical training at Stanford University and the University of Colorado.
Dr. Ahmad received his medical education at the University of South Florida (USF) where he was the recipient of numerous scholarships and awards including the Galen Scholarship, SELECT Koch Award, Anderson SELECT Scholarship, and Osler Award. During medical school, Dr. Ahmad was productive in both basic science and research resulting in 3 peer-reviewed publications and induction into the Robert A. Good Honor Society bestowed upon the top 10% of medical students in research. Dr. Ahmad also received the Alpha Omega Alpha Carolyn A. Kuckein Fellowship to continue policy work on improving the organ supply for Americans requiring organ transplants. Early in medical school, he conducted basic scientific work transplanting immune cells on metastatic melanoma in a mouse model while a visiting researcher under Prof. Gavin Pettigrew & Prof. Reza Mottalebzadeh in the Department of Surgery at the University of Cambridge in the United Kingdom. Dr. Ahmad was also active in health policy work culminating in a role as Vice Chair of the Medical Student Section Committee of Legislation & Advocacy for the American Medical Association with several roles at university, county, and state levels in both Florida and Pennsylvania. Dr. Ahmad has an extensive record of volunteer activity serving at risk populations in the United States during medical school including HIV, LGBTQ, pediatric, and homeless populations. In addition, he spends time mentoring and reviewing scholarship applications for Greenhouse Scholars, program focused on developing under-resourced high performing American students from high school to first career and beyond.
Prior to medical school, Dr. Ahmad had a career in the life sciences industry after receiving a degree in Economics from Northwestern University where he primarily focused on bringing new medical technology to market. Dr. Ahmad was part of a team selected by the Chicago Chamber of Commerce as the most innovative company in 2010 winning a state-wide competition. He also volunteered his time as a board member re-vitalizing a 25 year old arts organization in Chicago and helping to develop a business incubator in Detroit shortly after the Great Recession.
Dr. Ahmad is a native Chicagoan hailing from a large family raised near the Southside of Chicago. In his free time he enjoys cooking, reading, history, traveling, working on cars, and developing his interest in aviation. -
Yi Liu
Postdoctoral Scholar, General Surgery
BioDr. Liu is a postdoc fellow at Stanford University School of Medicine. She is also a Chinese board-certificated, fellowship-trained clinician with demonstrated clinical and research expertise in Critical Care Medicine and interdisciplinary studies of nanomedicine.
She received her residency and fellowship training (Emergency Medicine & Intensive Care Medicine) at Chongqing Medical University (China) and Sorbonne Université (Pitié-Salpêtrière Hospital, Paris, France). In addition to her MD degree, She undertook PhD training in nanomedicine for cancer/infectious disease early detection and to identify potential new treatments for severe infectious/cancer patients. Her postdoctoral training in nano-enabled therapeutic at Stanford has helped advance her knowledge of how nanotechnology improve the application of nanomedicine in early diagnosis of diseases. She has published numerous articles on a wide range of nanoplatforms-related topics. She has also received several academic and teaching awards related to clinical skills and research on molecular imaging. -
Calvin Perumalla
Postdoctoral Scholar, General Surgery
BioDr. Calvin Perumalla joined the Stanford's TECI Center team as a postdoctoral researcher in February 2021. He received his Masters and Doctorate degrees in Electrical Engineering from the University of South Florida. His graduate research work involved building a novel cardiac rhythm monitor with enhanced diagnostic capabilities. He was also involved in building machine learning models to detect cardiac abnormalities. Dr. Perumalla later spent two years working at a late-stage startup where he was involved in building AI models to detect anomalies in computer networks. He is passionate about using AI to improve the quality of human life and his current research interests include Computer Vision, Image Segmentation and Surgical Data Science.
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Cintia Kimura
Postdoctoral Scholar, General Surgery
BioGraduated from Medical School from Universidade de São Paulo (2013). Completed training in General Surgery (2016), Colorectal Surgery (2018), and doctorate in Gastroenterology at Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (2021).
Currently researching how the gut microbiome can affect patients' risk of developing complications after colorectal surgery, and whether it can be modulated by short-term dietary interventions.
Previous work focused on prevention and early treatment of anal and rectal cancer, and on the interaction between HPV infection and anal neoplasia.
