School of Medicine


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  • Muhammad Nasir Ullah

    Muhammad Nasir Ullah

    Postdoctoral Scholar, Molecular Imaging Program at Stanford

    BioMuhammad Nasir Ullah has received a BS degree in Electronic Engineering from International Islamic University, Islamabad (IIUI) Pakistan in Jun 2012 and an integrated MS + Ph.D. degree in Bio-Convergence Engineering from Korea University, Seoul, South Korea under the supervision of Professor Jung-Yeol Yeom in Feb 2020. His Ph.D. thesis was focused on detector design for Nuclear Medicine (NM) system and NM-Ultrasound hybrid systems.
    His area of research interest is radiation detection and measurement for medical applications. He has been working on detector design for Positron Emission Tomography (PET) system, intraoperative gamma probe detector, beta/gamma discrimination, and hybrid Ultrasound-gamma probe. He has also been working on frontend discrete circuit designs for various types of radiation and Ultrasound (US) detectors. He has published 6 peer-reviewed articles as the first author while 2 as co-author. He also has 4-patents under his name in S. Korea.

  • Ummey Hani, MBBS, MD

    Ummey Hani, MBBS, MD

    Postdoctoral Scholar, Neurosurgery

    BioHani is a Postdoctoral Research Fellow at Stanford University in the Neurosurgical Artificial Intelligence and Machine Learning Laboratory. She earned her medical degree from Sindh Medical College, Pakistan, and completed her internship at the Aga Khan University, where she was recognized as Class Valedictorian and among the top five interns of 2022. She then pursued a two-year postdoctoral fellowship at Carolina Neurosurgery and Spine Associates in Charlotte, North Carolina, affiliated with Wake Forest University School of Medicine, focusing on spine surgery outcomes and biomechanics. Before joining Stanford, she served as Junior Research Faculty for neuro-oncology research at the Aga Khan University in Karachi, Pakistan.

    Hani’s research spans neuro-oncology, spine surgery, biomechanics, and the application of AI/ML in neurosurgical innovation. With a deep commitment to academic neurosurgery, she is currently working towards securing a neurosurgical residency.

  • Rachel Allison Ungar

    Rachel Allison Ungar

    Postdoctoral Scholar, Biomedical Ethics

    BioRachel Ungar, PhD, is a Postdoctoral Fellow in the Stanford Training Program in ELSI Research (T32) at the Stanford Center for Biomedical Ethics. Her graduate research was in computational genomics focused on multiomics approaches in Stephen Montgomery’s lab. She was an active member of the Undiagnosed Diseases Network, and GREGoR rare disease consortia focused on transcriptomic methods and data standards. She also examined the impact of rare variants and sex on the X-chromosome. During her PhD, she co-created and taught a course expanding ethics education to bioscientists (GENE 220: Genetics, Ethics, and Society) and evaluated its impact. During her postdoc, Rachel aims to use her background to integrate genomics and ethics, beginning with ethical considerations for rare and undiagnosed disorders. Rachel received her PhD in Genetics at Stanford. She earned her Bachelor of Science in Biology at the University of Arkansas with minors in mathematics and computer science.