Stanford University


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  • Anthony Machi, MD

    Anthony Machi, MD

    Clinical Associate Professor, Anesthesiology, Perioperative and Pain Medicine

    BioDr. Anthony Machi is a double-board-certified, fellowship-trained anesthesiologist and pain management specialist with Stanford Health Care. He is also a clinical associate professor in the Department of Anesthesiology, Perioperative, and Pain Medicine, Division of Pain Medicine at Stanford University School of Medicine.

    Dr. Machi diagnoses and treats a wide range of pain conditions, including acute and chronic postsurgical pain, nerve-related (neuropathic) pain, and pain affecting the back, neck, and joints. He specializes in using minimally invasive techniques to relieve pain and enhance quality of life for his patients who are recovering after surgery.

    Dr. Machi’s research interests include using ultrasound to study the greater occipital nerve in people with greater occipital neuralgia. He has also studied patient outcomes and pain management strategies for many types of surgery, including minimally invasive valve surgery and major shoulder surgery.

    Dr. Machi has published his research in peer-reviewed journals, such as Seminars in Cardiothoracic and Vascular Anesthesia, Regional Anesthesia & Pain Medicine, Anesthesia & Analgesia, and PAIN. He has also presented to his peers at national and regional meetings, including the annual meetings of the American Society of Anesthesiologists (ASA), the American Society of Regional Anesthesia and Pain Medicine (ASRA), and the Texas Society of Anesthesiologists.

    Dr. Machi is a member of the American Academy of Pain Medicine, ASA, ASRA, the North American Neuromodulation Society, and the World Academy of Pain Medicine United.

  • M Bruce MacIver

    M Bruce MacIver

    Professor (Research) of Anesthesiology, Perioperative and Pain Medicine, Emeritus

    Current Research and Scholarly InterestsWe study drug effects on the nervous system. Cellular, synaptic and molecular drug actions are investigated using electrophysiological and pharmacological tools in cortical/hippocampal brain slice preparations. We are also interested in mechanisms of neuronal integration and synchronization, especially related to patterns of EEG activity seen in vivo and in brain slices.

  • Crystal Mackall

    Crystal Mackall

    Ernest and Amelia Gallo Family Professor and Professor of Pediatrics and of Medicine

    Current Research and Scholarly InterestsRecent clinical studies, by us and others, have demonstrated that genetically engineered T cells can eradicate cancers resistant to all other therapies. We are identifying new targets for these therapeutics, exploring pathways of resistance to current cell therapies and creating next generation platforms to overcome therapeutic resistance. We have discovered novel insights into the biology of human T cell exhaustion and developed approaches to prevent and reverse this phenomenon.

  • Kristen Klepac MacKenzie, MD

    Kristen Klepac MacKenzie, MD

    Clinical Assistant Professor, Anesthesiology, Perioperative and Pain Medicine

    BioDr. Kristen MacKenzie is a Clinical Assistant Professor in the Department of Anesthesiology, Perioperative, and Pain Medicine. Dr. MacKenzie graduated AOA with a MD from UCSF and then completed her anesthesia residency and pain medicine fellowships at Stanford. She works at the Stanford Pain Management Center with specialty interests in chronic pelvic and abdominal pain, as well as peripartum pain. She is the co-director for the Stanford Pelvic Pain Program as well as part of the Stanford Pelvic Health Center for interdisciplinary, multimodal care.

    She completed a Stanford Faculty Medical Humanities Fellowship, focusing on the role of communication and the arts in modern medicine. She serves as the co-director for the Women's Sexual Dysfunction Case Conference. She is active in the American Academy of Pain Medicine (AAPM), and for the 2026-2027 year is serving as the Women in Pain Medicine Shared Interest Group (SIG) Co-Chair as well as a Director-at-large.

    Outside of work, she enjoys being outdoors in the Bay Area, trail running, and spending time with her husband and two boys.

    Clinical focus:

    Pelvic pain, due to multiple causes including:
    Dyspareunia
    Painful Bladder Syndrome/ Interstitial cystitis/ Dysuria
    Endometriosis
    Fibroids
    Pelvis Congestion Syndrome
    Pelvic Floor Dysfunction
    Pudendal Nerve Pain
    Rectal/Anal Pain
    Vulvar Pain/ Vulvodynia/ Vaginismus

    Nerve entrapment syndromes, including hernia nerve entrapment

    Post-partum and Peri-partum pain
    Abdominal pain
    Musculoskeletal pain

    New Patients: Please have your primary treating provider place a referral to Stanford Pain Clinic and specify Pelvic Pain, Dr. MacKenzie.

  • Sean Mackey, M.D., Ph.D.

    Sean Mackey, M.D., Ph.D.

    Redlich Professor, Professor of Anesthesiology, Perioperative, and Pain Medicine (Adult Pain) and, by courtesy, of Neurology and Neurological Sciences

    Current Research and Scholarly InterestsMultiple NIH funded projects to characterize CNS mechanisms of human pain. Comparative effectiveness of cognitive behavioral therapy and chronic pain self-management within the context of opioid reduction (PCORI funded). Single session pain catastrophizing treatment: comparative efficacy & mechanisms (NIH R01). Development and implementation of an open-source learning healthcare system, CHOIR (http://choir/stanford.edu), to optimize pain care and innovative research in real-world patients.

  • Thomas MaCurdy

    Thomas MaCurdy

    Professor of Economics, Senior Fellow at the Hoover Institution and at the Stanford Institute for Economic Policy Research

    BioThomas MaCurdy is a Senior Fellow at the Stanford Institute of Economic Policy Research, and he further holds appointments as a Professor of Economics and a Senior Fellow at the Hoover Institution at Stanford University. MaCurdy has published numerous articles and reports in professional journals and general-interest public policy venues, and he has served in an editorial capacity for several journals. He is a widely-recognized economist and expert in applied econometrics, who has developed and implemented a wide range of empirical approaches analyzing the impacts of policy in the areas of healthcare and social service programs. MaCurdy directs numerous projects supporting the activities and operations of the Center of Medicare and Medicaid Services (CMS), Congressional Budget Office (CBO), General Accounting Office (GAO), and Medicare Payment Advisory Commission (MedPAC), and Medicaid and CHIP Payment and Access Commission (MACPAC), and he has served as a member of several standing technical review committees for many federal and state government agencies (e.g., CBO, Census, BLS, California Health Benefits Review Program). MaCurdy currently supervises several empirical projects that support CMS regulatory policy responsible for the establishment of Healthcare Exchanges under the Affordable Care Act.