School of Medicine


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  • Melanie Lean

    Melanie Lean

    Clinical Assistant Professor, Psychiatry and Behavioral Sciences

    BioMelanie Lean, Clin.Psych.D. is a Californian licensed clinical psychologist, Clinical Assistant Professor, and assistant director of research in the INSPIRE early psychosis clinic, Stanford University School of Medicine. She provides Cognitive Behavioral Therapy for psychosis (CBTp) within the recovery oriented and trauma informed framework of the INSPIRE clinic. Dr Lean received her doctorate from University College London, UK and completed her postdoctoral fellowship at Stanford University. She is a mixed methods researcher, with over 15 years’ experience in mental health research, working across a range of settings with a focus on severe and enduring mental illness and ways to improve service provision for this population. She has specialized knowledge in self-management and peer support interventions for people with psychosis and has experience working alongside service user researchers in the evaluation and delivery of study interventions. Dr Lean is also trained in psychedelic assisted therapy and works on a range of clinical trials investigating psilocybin for treatment resistant depression.

  • Joshua Isaac Leaston, BS

    Joshua Isaac Leaston, BS

    MD Student with Scholarly Concentration in Bioengineering / Neuroscience, Behavior, and Cognition, expected graduation Spring 2026

    BioJoshua Isaac Leaston is a MD candidate with a concentration in bioengineering and application in Neuroscience, behavior, and cognition in the Stanford University School of Medicine. A member of the entering class of 2021, Joshua holds a degree in Neuroscience with a minor in Health Science and has received various academic excellence awards and scholarships.

    His research interests include the development of quantitative neuroimaging methodologies for neurosurgical and radiological outcome improvement. He has also received a research fellowship from a Boston based neuroimaging organization and MedScholars funding for his research on neuroimaging methodologies. This is further augmented by a Stanford-based seed grant, enabling him to delve into the investigation of disparities in outcomes of image-guided procedures within high-risk patient populations nationwide.

    In addition to his academic pursuits, he is also the co-founder of a company focused on addressing disparities in skin cancer through advanced imaging, which has been recognized through the Stanford Biodesign NEXT award and eWEAR.

    Further, he is dedicated to raising awareness around the intersectionality between the unhoused community and medicine. Joshua co-founded a nonprofit dedicated to supporting unhoused individuals, where he has raised funding to sustainably support the cause since 2019.

    Joshua has also demonstrated his dedication to advancing science and medicine through several presentations, including a talk at Tufts Medicine on barriers in medical school enrollment for minorities and a presentation at Northeastern University on "How to Build a Nonprofit." He has presented at conferences such as Rise, KTGF, SPINE, RSNA, ACR, ASNR, AANS, ISMRM, and the AMEC-SNMA conference, and has published in peer-reviewed journals.

    In conclusion, Joshua Isaac Leaston's academic excellence, research contributions, and dedication to social causes showcase his strong potential to become a compassionate and impactful physician scientist.

  • Hayley Wheeler Leatham, MD

    Hayley Wheeler Leatham, MD

    Clinical Assistant Professor, Dermatology

    BioDr. Leatham is a dermatologist and clinical assistant professor in the Department of Dermatology at Stanford University School of Medicine. Her clinical interests include the prevention and treatment of skin cancer, acne, psoriasis, and dermatologic surgery, as well as the full range of general dermatologic skin conditions.

    Dr. Leatham’s research interests include the relationship between interferon expression, clinical characteristics, and prognosis in patients with dermatomyositis. She has co-authored articles on clinical factors associated with this condition, as well as other subjects such as blistering dermatosis as a sign of multiple myeloma relapse. Her work has appeared in the Journal of Cutaneous Pathology, Journal of the American Academy of Dermatology Case Reports, Medicine, and other journals.

    Presentations by Dr. Leatham have addressed cutaneous coccidioidomycosis and a range of dermatomyositis-related topics, including interferon activity and malignancy screening outcomes. She has delivered these presentations at the annual meetings of the American Academy of Dermatology, Rheumatologic Dermatology Society, American College of Rheumatology, and Society of Investigative Dermatology.

    During medical school, Dr. Leatham was honored to be selected into the Stanford Gold Humanism Honor Society for demonstrating excellence in clinical care, leadership, compassion, and dedication to service. She was also inducted into the Alpha Omega Alpha medical honor society during her chief resident year.

    Her community service activities include volunteering for SUNSPORT, the Stanford University Network for Sun Protection, Outreach, Research, and Teamwork, the most comprehensive sun protection outreach and research program of any university in the nation. This initiative provides risk awareness and sun protection education to Stanford outdoor athletes and fans, as well as all students, faculty, and staff. It is a collaborative effort of the Stanford Department of Dermatology, Stanford Cancer Institute, Stanford Hospital & Clinics, and Stanford Athletics.