School of Medicine


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  • Iram Ahmad, MD, MME

    Iram Ahmad, MD, MME

    Assistant Professor of Otolaryngology - Head & Neck Surgery (OHNS) and, by courtesy, of Pediatrics

    BioDr. Iram Ahmad received her MD from the University of Michigan Medical School. She then completed Otolaryngology residency program at the University of Iowa. At Iowa, she was an NIH- sponsored T32 research resident in the Department of Otolaryngology. During her residency training she also gained expertise in education and graduated with a Master in Medical Education from the University of Iowa Carver College of Medicine. After residency, Dr. Ahmad continued at Iowa for her fellowship in Pediatric Otolaryngology.

    Dr. Ahmad is an Assistant Professor of Otolaryngology- Head and Neck Surgery in the Pediatric Division. Her clinical expertise is in Pediatric Otology and hearing loss. She is focused on children with hearing loss, cochlear implantation, cholesteatoma, and general pediatric Otolaryngology. Her research interests are in children with congenital hearing loss and microstructure changes of the brain.

  • Jennifer Alyono, MD MS

    Jennifer Alyono, MD MS

    Clinical Assistant Professor, Otolaryngology (Head and Neck Surgery)

    BioDr. Alyono completed her undergraduate degree in Chemistry as well as her master’s degree in Bioengineering at Stanford University. After completing medical school at the University of California, San Diego, she returned to Stanford where she completed both her residency in Otolaryngology-Head & Neck Surgery, as well as her fellowship in Otology/Neurotology and Skull base surgery. Clinically, Dr. Alyono specializes in adult and pediatric surgery for disorders of the middle ear, inner ear, ear canal, facial nerve, and skull base. This includes care for hearing loss, tympanic membrane perforations, cholesteatoma, glomus tumors, and vestibular schwannomas, among others. Her research interests lie in hearing in population health, quality of care, and technology in medicine.

  • Fred M Baik, MD

    Fred M Baik, MD

    Assistant Professor of Otolaryngology - Head & Neck Surgery (OHNS)

    BioDr. Baik is Assistant Professor of Otolaryngology – Head & Neck Surgery at Stanford University. He provides comprehensive surgical care for patients with head and neck cancer, both as an ablative and reconstructive surgeon. His clinical interests include oral cavity cancer, complex skin cancer, microvascular reconstruction and the diagnosis and management of nodal metastasis. With his background in fluorescence imaging, Dr. Baik’s research focuses on surgical navigation using targeted agents to improve tumor margin assessment and the detection of nodal metastasis, and he currently leads several clinical trials to translate novel imaging techniques.

    Dr. Baik graduated with honors in Biology at the University of Pennsylvania and received his medical degree at UC San Diego. After completing his Otolaryngology residency at the University of Washington, he pursued advanced training in Head and Neck Oncology & Reconstructive Surgery at Mount Sinai Beth Israel Hospital in New York City. He is a board-certified by the American Board of Otolaryngology, and a member of the American Head and Neck Society, American Academy of Otolaryngology – Head and Neck Surgery, and a fellow of the American College of Surgeons.

  • Karthik Balakrishnan, MD, MPH, FAAP, FACS

    Karthik Balakrishnan, MD, MPH, FAAP, FACS

    Associate Professor of Otolaryngology - Head & Neck Surgery (OHNS) and, by courtesy, of Pediatrics

    Current Research and Scholarly InterestsDr. Balakrishnan's research focuses on innovative ways to improve and standardize treatments and measure outcomes in complex pediatric airway and aerodigestive conditions , as well as ways to reduce treatment costs and medical errors. By improving outcomes and reducing costs, he aims to improve the value of care, while also optimizing patient and caregiver experience during the care process.

  • Nesrine Benkafadar

    Nesrine Benkafadar

    Instructor, Otolaryngology (Head and Neck Surgery)

    BioDr. Nesrine Benkafadar obtained her Pharm.D from the University of Constantine in Algeria. She then joined the Institute for Neurosciences of Montpellier in France, where she completed a master’s degree in Industrial Pharmacy and obtained her Ph.D in Biology and Health. She mainly worked on establishing a functional interaction between oxidative stress, DNA damage and cochlear cell aging. From there, she conducted postdoctoral research in Dr. Stefan Heller’s lab at Stanford University. Her current research is focused on studying the early regenerative triggers in damaged avian cochlea with the overarching goal to characterize the series of events that trigger and execute cochlear hair cell regeneration. Her ultimate goal is to investigate key trigger genes to induce adult mammalian supporting cells in damaged cochlea to reenter the cell cycle toward hair cell regeneration.

  • Nikolas Blevins, MD

    Nikolas Blevins, MD

    Larry and Sharon Malcolmson Professor in the School of Medicine, Professor of Otolaryngology - Head & Neck Surgery (OHNS) and, by courtesy, of Neurosurgery

    Current Research and Scholarly InterestsInner ear microendoscopy -- Developing techniques for minimally-invasive imaging of inner ear microanatomy and neural pysiology. Applications include improved cochlear implant development, inner ear regenerative techniques, inner ear surgery, and auditory physiology.

    Microsurgical robotics -- Developing scalable microsurgical instrumentation and robotic techniques for use in head and neck surgery.

    Surgical Simulation -- Immersive environment for temporal bone surgical simulation.

  • Robson Capasso, MD

    Robson Capasso, MD

    Professor of Otolaryngology - Head & Neck Surgery (OHNS) and, by courtesy, of Psychiatry and Behavioral Sciences (Sleep Medicine)

    Current Research and Scholarly InterestsClinically relevant outcomes for OSA Surgery.
    Wearables and Digital Health Technologies for Sleep.
    Innovative approaches for OSA Management.
    Innovation in Sleep and Otolaryngology

  • Kay W. Chang, MD

    Kay W. Chang, MD

    Professor of Otolaryngology - Head & Neck Surgery (OHNS) and, by courtesy, of Pediatrics

    Current Research and Scholarly Interestshttp://med.stanford.edu/ohns/research/labs_chang.html

  • Michael Chang, MD

    Michael Chang, MD

    Assistant Professor of Otolaryngology - Head & Neck surgery (OHNS)

    BioDr. Chang is a board-certified, Stanford fellowship-trained otolaryngologist providing care at Stanford Health Care’s Sinus Center. He is also an assistant professor in the Department of Otolaryngology – Head & Neck Surgery at Stanford University School of Medicine.

    He specializes in the diagnosis and surgical treatment of nasal, sinus, and skull base disorders. Dr. Chang is also interested in the use of online digital media for ear, nose, and throat (ENT)-related educational content. He is the rhinology host for Headmirror’s ENT in a Nutshell podcast and served as education consulting for the rhinology section of DosedDaily.

    Dr. Chang’s research interests include new endoscopic imaging technologies, machine learning applications in healthcare, and outcomes for various medical and surgical treatments for sinus and skull base disorders.

    Dr. Chang has published in several high-impact journals, such as Clinical Cancer Research, JAMA Otolaryngology – Head & Neck Surgery, and International Forum of Allergy & Rhinology. He serves as a journal peer reviewer for Annals of Otology, Rhinology & Laryngology; The Laryngoscope; World Journal of Otorhinolaryngology – Head & Neck Surgery; and Ear, Nose & Throat Journal.

    He is a member of the American Academy of Otolaryngology–Head and Neck Surgery, the North American Skull Base Society, and the American Rhinologic Society. He serves on the American Rhinologic Society’s Patient Advocacy Committee.

  • Steven D. Chang, MD

    Steven D. Chang, MD

    Robert C. and Jeannette Powell Neurosciences Professor and, by courtesy, of Otolaryngology - Head & Neck Surgery (OHNS) and of Neurology

    Current Research and Scholarly InterestsClinical research includes studies in the treatment of cerebrovascular disorders, such as aneurysms and AVMs, as well as the use of radiosurgery to treat tumors and vascular malformations of the brain and spine.

    Dr. Chang is C0-Director of the Cyberknife Radiosurgery Program.

    Dr. Chang is also the head of the The Stanford Neuromolecular Innovation Program with the goal of developing new technologies to improve the diagnosis and treatment of patients affected by neurological conditions.

  • Michelle M. Chen, MD, MHS

    Michelle M. Chen, MD, MHS

    Assistant Professor of Otolaryngology - Head & Neck Surgery (OHNS)

    BioDr. Chen is a fellowship-trained head and neck surgical oncologist with a board certification in otolaryngology and a clinical assistant professor with the Stanford School of Medicine Department of Otolaryngology.

    Her practice focuses on the treatment of cancers that affect the head and neck. She has received additional training in microvascular reconstruction and transoral robotic surgery.

    Dr. Chen has an active lab involved in head and neck cancer health services research and her work has appeared in numerous journals, including The Journal of the American Medical Association, Cancer, Journal of the National Cancer Institute, and Journal of Clinical Oncology. She has also authored chapters in textbooks on head and neck cancer treatment.

    Dr. Chen is a member of the American Academy of Otolaryngology—Head & Neck Surgery (AAOHNS) and the American Head & Neck Society.

  • Alan G. Cheng, MD

    Alan G. Cheng, MD

    Edward C. and Amy H. Sewall Professor in the School of Medicine, Professor of Otolaryngology - Head & Neck Surgery (OHNS) and, by courtesy, of Pediatrics

    Current Research and Scholarly InterestsActive Wnt signaling maintains somatic stem cells in many organ systems. Using Wnt target genes as markers, we have characterized distinct cell populations with stem cell behavior in the inner ear, an organ thought to be terminally differentiated. Ongoing work focuses on delineating the developing significance of these putative stem/progenitor cells and their behavior after damage.

  • Sung-Won Choi, MD, PhD

    Sung-Won Choi, MD, PhD

    Visiting Associate Professor, Otolaryngology (Head and Neck Surgery)

    Bio1. EDUCATION

    2019 Ph.D, in Otolaryngology, School of Medicine, Pusan National University, Busan, Republic of Korea
    2010 M.S., in Otolaryngology, School of Medicine, Pusan National University, Busan, Republic of Korea
    2007 M.D, School of Medicine, Pusan National University, Busan, Republic of Korea

    2. CLINICAL & RESEARCH EXPERIENCE

    2022.7 - present : Visiting Associate Professor
    Dept. of Otolaryngology Head and Neck Surgery, Cheng Research Lab, Stanford University School of Medicine, Stanford, CA, USA

    2016 - present : Clinical Fellow, Assistant Professor, and Associate Professor
    Dept. of Otorhinolaryngology Head and Neck Surgery, Pusan National University School of Medicine, Pusan National University Hospital, Busan, Republic of Korea

  • Edward J. Damrose, MD, FACS

    Edward J. Damrose, MD, FACS

    Professor of Otolaryngology - Head & Neck Surgery (OHNS) and, by courtesy, of Anesthesiology, Perioperative & Pain Medicine

    Current Research and Scholarly InterestsAdvanced MRI imaging for laryngeal cancer and swallowing disorders; applications of robotics in microlaryngeal surgery; high speed digital imaging of vocal fold vibration; the effects of hormones and anabolic steroids on vocal function.

  • Seth J. Davis, MD

    Seth J. Davis, MD

    Assistant Professor of Otolaryngology - Head & Neck Surgery (OHNS)

    Current Research and Scholarly InterestsDr. Davis’ research interests include novel treatments for post-facial paralysis management, clinical outcomes in revision rhinoplasty and complex nasal reconstruction, and development of global health educational initiatives. He has presented grant funded, award winning research at dozens of conferences both locally and internationally. He has also published in a wide variety of high-impact journals, including Annals of Oncology, The Laryngoscope, and Facial Plastic Surgery & Aesthetic Medicine.

  • Elizabeth DiRenzo, PhD

    Elizabeth DiRenzo, PhD

    Associate Professor of Otolaryngology - Head & Neck Surgery (OHNS) and, by courtesy, of Music

    Current Research and Scholarly InterestsDr. Erickson DiRenzo's laboratory integrates research techniques from the basic and clinical sciences to improve the prevention and management of voice disorders.

  • Vasu Divi, MD

    Vasu Divi, MD

    Associate Professor of Otolaryngology - Head & Neck Surgery (OHNS)

    BioDr. Vasu Divi is a distinguished expert in the field of head and neck cancer treatment, renowned for his dual roles as a cancer surgeon and reconstructive surgeon. With a specialized focus on high-risk and advanced skin cancers, oral cavity cancers, and osteoradionecrosis of the head and neck, Dr. Divi stands at the forefront of medical innovation. As a national authority in cutaneous squamous cell carcinoma of the head and neck, Dr. Divi spearheads Stanford's clinical trial program dedicated to this condition. His trial portfolio encompasses both neoadjuvant and adjuvant applications of immunotherapy, reflecting his commitment to advancing treatment methodologies. Actively engaged in research, Dr. Divi endeavors to define the optimal treatment approach for this disease, integrating immunotherapy to enhance patient outcomes.