School of Medicine
Showing 451-460 of 934 Results
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Yi-Ren Chen, MD, MPH, FAANS
Adjunct Clinical Assistant Professor, Neurosurgery
BioDr. Chen is a neurosurgeon and spine surgeon and Chief of Neurosurgery with Mercy Medical Group, Sacramento County, CA, as well as an Adjunct Clinical Assistant Professor of Neurosurgery at Stanford University. After double majoring in biology and history at Stanford, he obtained his MD from Stanford and MPH from Johns Hopkins. He subsequently completed neurosurgery residency and complex spine fellowship at Stanford. Dr. Chen has over 150 peer-reviewed papers, book chapters, talks, and abstracts. He serves the greater Sacramento area and beyond.
Clinical interests:
Minimally invasive spine, scoliosis and deformity, redo/ revision spinal surgery, complex spine, general neurosurgery
Administrative Appointments:
Chief of Neurosurgery, Mercy Medical Group/ Dignity Health Sacramento, Sacramento County, CA
Director (North)/ Board of Directors, California Association of Neurological Surgeons (CANS)
Professional Education:
Undergraduate: Stanford University (BA/ BS)
Medical School: Stanford University (MD)
Masters: Johns Hopkins (MPH)
Residency: Stanford University (Neurosurgery)
Fellowship: Stanford University (Minimally Invasive and Complex Deformity Spine)
Fellowship: San Diego Spine Foundation (Visiting Fellow in Minimally Invasive Spine)
Board Certification: American Board of Neurological Surgery, Neurosurgery
Research interests:
Clinical outcomes research on spine patients utilizing both large-scale nationwide databases and single-center patient information, focusing on improving quality of care, patient satisfaction, and hospital-wide outcomes. -
Yiyun Chen
Postdoctoral Scholar, Stanford Cancer Institute
BioYiyun Chen is a computational cancer immunologist whose interdisciplinary training spans structural biology, computational genomics, and cancer immunotherapy. During her doctoral training at HKUST, she developed multi-omic frameworks to decode the molecular landscape of brain tumors, gastric cancer, and B cell lymphoma — including the discovery of a tumor-associated monocyte population in the glioma microenvironment that drives mesenchymal transformation through the FOSL2-EREG/AREG-EGFR signaling axis.
As a postdoctoral fellow in the Crystal Mackall Laboratory at Stanford Cancer Institute, she extended this focus to the co-evolution of glioma and the immune system during CAR T cell therapy, uncovering multiple mechanisms of acquired resistance: anti-CAR humoral and cellular immunity, proinflammatory-to-immunosuppressive phenotypic shifts in macrophages, and tumor antigen escape. Her future research program will build an AI-powered platform that integrates longitudinal single-cell and spatial transcriptomics to model tumor-immune co-evolution in silico — constructing patient-level digital twins that simulate treatment trajectories, predict resistance, and identify real-time monitoring biomarkers. -
Zheng Chen, OD
Clinical Assistant Professor, Ophthalmology
BioDr. Chen is an optometrist with the Byers Eye Institute and a clinical assistant professor in the Department of Ophthalmology at Stanford University School of Medicine.
Dr. Chen diagnoses and treats a range of eye conditions, including refractive errors, glaucoma, cataracts, and diabetic retinopathy. Her clinical experience is in routine and emergency eye care, pre- and post-surgical eye care, and medical management of eye diseases. She delivers patient-focused care, quickly establishing rapport and working effectively with pediatric, geriatric, and culturally diverse populations.
Dr. Chen is a member of Beta Sigma Kappa, an international optometric honor society.
