School of Medicine


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  • James Quinn

    James Quinn

    Professor of Emergency Medicine, Emeritus

    Current Research and Scholarly InterestsDr. Quinn's primary focus is emergency care research with previous experience running large multi-center trials.. He has an extensive research background in clinical decision making involving patients with syncope, neurological emergencies and in the development and clinical evaluation of tissue adhesives. He is currently an emeritus professor whose academic activity is focused on the protection of human subjects in research. He remains clinically active in the Palo Alto Foundation Medical Group

  • Orlando Quintero, MD

    Orlando Quintero, MD

    Clinical Assistant Professor, Medicine - Infectious Diseases

    BioDr. Orlando Quintero is a board-certified, fellowship trained internist specializing in the diagnosis and treatment of infectious diseases. He is also clinical assistant professor in the Department of Medicine, Division of Infectious Diseases, at Stanford University School of Medicine.

    As a clinician, Dr. Quintero diagnoses and treats infectious diseases in immunocompromised patients. This includes the prevention, diagnosis and treatment of infections in patients who are immunosuppressed because of Solid Organ Transplantation, Bone Marrow (Hematopoeitic Cell) Transplants, Hematologic Malignancies, Chemotherapy for Solid Tumors, HIV who receive Chemotherapy, Solid Organ or Bone Marrow Transplants Immunomodulators for Auto-Immune Diseases and other forms of immunodeficiency.

    Dr. Quintero has published on topics including coronavirus in kidney transplant patients, prevention of cytomegalovirus in heart transplant patients, and prevention of urinary tract infections in renal transplant patients. His work has appeared in publications including Transplant Infectious Disease, Emerging Infectious Diseases, and the Journal of Heart and Lung Transplantation.

    He has delivered presentations at meetings of organizations including the International Society for Heart and Lung Transplantation, Interscience Conference on Antimicrobial Agents and Chemotherapy, and American Society of Tropical Medicine and Hygiene. Topics of his presentations have included prevention of cytomegalovirus, prevention of recurrent urinary tract infections, Chagas disease in New York City, and more.

    Currently, Dr. Quintero is conducting research on treatment of patients with COVID-19, prevention and treatment of invasive fungal infections of the gastrointestinal tract in immunocompromised patients, and the epidemiology of invasive fungal infections in heart transplant recipients.

    Among his awards, He has received honors for his teaching and research from Albert Einstein College. He also has earned recognition from the Fred Hutchinson Cancer Research Center and the American Society of Transplantation.

    Dr. Quintero’s volunteer community service includes participation in health fairs to promote HIV testing and hypertension control, plus disease management in the Garifuna population in New York – descendants of an Afro-indigenous population from the Caribbean island of St. Vincent.

    He is a member of the Infectious Disease Society of American, Infectious Diseases Association of California, American Society of Transplantation, and HIV Medicine Association.

  • Francisco Quintero

    Francisco Quintero

    Affiliate, Medicine - Primary Care and Population Health

    BioHello! My name is Juan Francisco Quintero, though I usually go by Francisco. I was born in Sinaloa, Mexico, and moved to the San Francisco Bay Area when I was 10 years old. I was raised in the small town of Burlingame, where I learned the importance of a close-knit, family-oriented community. I am currently a post-baccalaureate student at the University of California, Berkeley, and I earned my bachelor’s degree in Biology from Sonoma State University.

    I am an aspiring physician interested in specializing in cardiology or oncology. My passion for health and medicine began when I accompanied my grandmother to her doctor’s appointments after she was diagnosed with heart disease at the age of 40. Wanting to better understand her condition and help my family stay healthy became the driving force behind my academic journey. While studying at UC Berkeley, I worked as an Ophthalmic Technician at a clinic dedicated to serving underserved communities. In this role, I often assisted Spanish-speaking patients who felt more comfortable communicating in their native language. As a native Spanish speaker, I was able to connect with patients in a warm and meaningful way. This experience showed me how essential clear communication and trust are in healthcare, and it reinforced my commitment to becoming a compassionate physician.

    I am excited to be part of COMET and continue caring for patients while developing the skills necessary to become the best physician I can be.