School of Medicine
Showing 21-30 of 43 Results
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Michael Leong
Clinical Professor, Anesthesiology, Perioperative and Pain Medicine
Clinical Professor (By courtesy), NeurosurgeryCurrent Research and Scholarly Interests- Intrathecal / Intraspinal Analgesics
- Ziconotide (Prialt)
- Resiniferatoxin
- Industry-supported clinical trials -
Alice Huai-Yu Li, MD
Clinical Assistant Professor, Anesthesiology, Perioperative and Pain Medicine
BioDr. Alice Huai-Yu Li is an anesthesiologist and pain management specialist at Stanford Health Care. She is also a clinical assistant professor in the Department of Anesthesiology, Perioperative and Pain Medicine, Division of Pain Management at Stanford University School of Medicine.
Dr. Li specializes in headache and facial pain conditions, offering advanced, personalized care for patients with complex and often debilitating pain syndromes. Her clinical expertise spans a wide range of disorders, including migraine, trigeminal neuralgia, cluster headache, temporomandibular joint dysfunction (TMD), and other forms of craniofacial pain.
She collaborates closely with her colleagues in neurosurgery, otorhinolaryngology (ENT), neurology, dentistry, and oral and maxillofacial surgery (OMFS) to ensure comprehensive and coordinated care. With this interdisciplinary approach, she works with each patient to help them feel better and improve their daily life. This includes creating a tailored treatment plan with healthy lifestyle modifications, prescription medications, and targeted procedures.
Dr. Li’s research focuses on finding better ways to treat migraines and facial pain and improving care before and after surgery for people who live with chronic pain. She uses imaging tools, such as ultrasound, to predict how well certain treatments will work. Her research also includes developing small devices that can be placed in the body to relieve pain without major surgery. In addition, she studies how artificial intelligence can help diagnose different types of headaches and facial pain.
Dr. Li has authored more than a dozen peer-reviewed publications and has presented her work at national and international conferences for organizations including the American Academy of Pain Medicine, the American Society of Anesthesiologists, and the North American Neuromodulation Society. -
Joseph Liao, MD
Clinical Assistant Professor, Anesthesiology, Perioperative and Pain Medicine
BioDr. Joseph Liao, M.D., is a double board-certified pain management specialist and anesthesiologist at the Stanford University School of Medicine, where he brings a wealth of expertise to the Department of Anesthesiology, Perioperative and Pain Medicine.
His clinical interests span a wide range of pain conditions with an emphasis on back pain, neck pain, joint pain, nerve pain, cancer-related pain, chronic post-surgical pain, and chronic post-traumatic pain. He specializes in neuromodulation, such as spinal cord stimulation, peripheral nerve stimulation, restorative neuromodulation, and dorsal root ganglion stimulation. Dr. Liao’s expertise extends to minimally invasive surgical spine interventions, using techniques like radiofrequency ablation, basivertebral nerve ablation, percutaneous decompression, sacroiliac joint fusion, and steroid injections. He is skilled in using ultrasonography and fluoroscopy to address spine, degenerative joint, and musculoskeletal diseases, as well as neurolysis and ablation for cancer-related pain.
In his research, Dr. Liao focuses on innovative therapies through neuromodulation and minimally invasive spine interventions, with his work published in prestigious peer-reviewed journals such as Anesthesiology and Pain Medicine. He serves as an ad hoc reviewer for multiple pain and anesthesiology journals. He is actively engaged in presenting and teaching at national and international conferences.
Dr. Liao is an avid patient and physician advocate. He takes pride in facilitating safe care and enjoys teaching other physicians how to safely deliver anesthetics and pain care and limit injuries in various forums. He adheres to the philosophy of applying the right treatment for the right patient at the right time. His goal is to utilize minimally invasive interventions to enhance functionality, elevate quality of life, and alleviate pain.
He serves on leadership boards and is affiliated with numerous esteemed medical associations such as the American Society of Interventional Pain Physicians, American Society of Pain and Neuroscience, North American Neuromodulation Society, International Association for the Study of Pain, American Academy of Pain Medicine, Pacific Spine and Pain Society, California Society of Interventional Pain Physicians, American Society of Anesthesiologists, American Association for the Surgery of Trauma, Society of Critical Care Medicine, and World Academy of Pain Medicine United. -
Theresa Lii, M.D., M.S.
Instructor, Anesthesiology, Perioperative and Pain Medicine
Current Research and Scholarly InterestsEvaluating the analgesic and antidepressant effects of ketamine in humans
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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. -
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 as well as the Pain Division representative to the Stanford Anesthesia Communications Council. She enjoys being able to spend time with learners and participates in the Women in Medicine mentoring program annually.
She is active in the American Academy of Pain Medicine (AAPM), and for the 2025-2026 year is serving as the Women in Pain Medicine Shared Interest Group (SIG) Co-Chair as well as the Media & Public Relations SIG Chair.
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.
Redlich Professor, Professor of Anesthesiology, Perioperative, and Pain Medicine (Adult Pain) and, by courtesy, of Neurology and Neurological Sciences
On Leave from 01/25/2026 To 03/06/2026Current 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.
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Amy Li Matecki
Adjunct Clinical Instructor, Anesthesiology, Perioperative and Pain Medicine
BioDr. Amy (Ying Li) Matecki has been licensed to practice medicine in California since 2002 and completed her Internal Medicine Residency as Chief Resident at Highland Hospital, Alameda Health System, a UCSF affiliate, in 2004. She received her degree in Acupuncture and Chinese medicine from ACCHS in 2009. She was a Faculty Attending Physician at Department of Medicine Residency at Highland Hospital from 2004 to 2019 and Chief of the Integrative Medicine Division from 2014 to 2019. She and her colleagues from allopathic medicine and Chinese Medicine created hospital privilege policy for licensed acupuncturists in 2011 and designed policies, procedures and training methods for acupuncturists to join the medical staff to provide inpatient acupuncture services at Highland Hospital. She helped to create the first Traditional Chinese Medicine (TCM) Residency from 2016 to 2019 at Alameda Health System Highland Hospital. Graduates from this residency program are able to work in allopathic academic teaching hospitals’ inpatient care and outpatient medical centers.
In addition to serving in the public hospital, Dr. Matecki joined Alta Bates Summit Medical Center (ABSMC) Comprehensive Cancer Center in 2004 where she started a community hospital-based acupuncture program to bridge Eastern and Western Medicine. She has been the Medical Director of Integrative Medicine at ABSMC since 2008. Integrating Chinese Medicine into conventional oncology practice, Dr. Matecki and her team not only provide clinical care but also present and publish their findings on safety from using acupuncture and integrative medicine to reduce the pain, nausea and anxiety that frequently accompanies conventional cancer treatments. In many case level observations, Dr. Matecki and her team note that the integration of Chinese Medicine may enhance cancer patients' quality of life.
Dr. Matecki was the principal investigator (PI) for acupuncture research for chronic post-chemotherapy fatigue in collaboration with Memorial Sloan-Kettering Cancer Center in New York. She presented her study on the safety of acupuncture for patients with lymphedema at the American Society of Clinical Oncology Breast Cancer Symposium in October 2009. She was co-investigator in a public hospital that studied acupuncture feasibility for Intensive Care Unit (ICU) patients which was published in the Journal of Alternative and Complementary Medicine (JACM) in 2017. She is the current PI for a Chinese herbal medicine research project at ABSMC. Following her team’s previous success at Highland hospital, she pioneered the first Sutter Bay Hospital Integrative Medicine TCM Residency training program at Alta Bates Summit Medical Center in 2023. https://vitals.sutterhealth.org/east-meets-west-health-system-launches-its-first-traditional-chinese-medicine-clinical-training-program/
Dr. Matecki is an Adjunct Clinical Faculty at Stanford Health Care, a member of the American Society of Clinical Oncology (ASCO), Society of Integrative Oncology (SIO); Fellow of the American College of Physicians (FACP); Co-founder of International Center for Integrative Medicine (ICIM); Board member of Society of Chinese American Physician Entrepreneurs (SCAPE); House delegate for California Medical Association (CMA). Matecki is currently serving on the State California Acupuncture Board, first appointed by Governor Jerry Brown in 2016, reappointed by Brown in 2017 and Governor Gavin Newsom in 2021. She served as the California Acupuncture Board President from 2017-2021 and the current board member. https://www.acupuncture.ca.gov/about_us/member_profiles.shtml#matecki . She continues to work on policy and safety guidelines for hospital-based Acupuncture and Integrative Medicine practice with a multidisciplinary team of physicians, nursing staff, acupuncturists and hospital administrators. -
Garret K. Morris, MD
Clinical Assistant Professor, Anesthesiology, Perioperative and Pain Medicine
BioDr. Morris is a board-certified, fellowship-trained anesthesiologist with a clinical focus on pain medicine. He is also a clinical assistant professor in the Division of Pain Medicine of the Department of Anesthesiology, Perioperative, and Pain Medicine at Stanford University School of Medicine. Dr. Morris has expertise in chronic pain management, inpatient pain management, spine care, and functional restoration.
He treats a wide range of pain conditions including musculoskeletal, neuropathic, visceral and mixed. With each patient in his care, Dr. Morris’ objective is to alleviate suffering using the treatment approach that is most likely to maximize effectiveness and minimize risk. The focus is on using the least invasive interventions possible to improve each individual’s function and quality of life.
To help achieve these goals, Dr. Morris takes a holistic approach encompassing six domains of pain management: pharmacological, interventional, behavioral/psychological, physical rehabilitative, alternative and complementary therapies, and self-management. Often this approach requires a multidisciplinary team of diverse professionals with Dr. Morris overseeing care planning, implementation, and follow-up. This is especially helpful for challenging cases, where a collaborative team-based approach affords greater potential for superior outcomes.
Dr. Morris communicates closely with referring physicians to devise holistic pain management that fits holistically into each patient’s comprehensive care plan.
Dr. Morris has authored articles and reviews in publications including Anesthesiology, Regional Anesthesia and Pain Medicine, American Society for Artificial Organs Journal, Cancer Detection and Prevention, and the Journal of Orthopedics & Sports Physical Therapy. He also has contributed the chapter “Occipital Nerve Block” in the textbook Comprehensive Treatment of Chronic Pain by Medical, Interventional, and Behavioral Approaches published by the American Academy of Pain Medicine. In addition, Dr. Morris has contributed online content on postoperative pain relief to the electronic forum, The Stanford Anesthesia Informatics and Media Lab (AIM).
He has made presentations at conferences including the American Society of Anesthesiology Annual Meeting and the Annual Rochester (New York) Regional Anesthesia Symposium. He also has delivered invited lectures, most recently on interventional techniques for the treatment of spinal disorders as part of the Excellus Blue Cross Blue Shield Project.
Dr. Morris’ honors for clinical practice include awards from Advocate Illinois Masonic Medical Center. He has received recognition for his scholarship from the Dannemiller Memorial Education Foundation and Midwest Anesthesia Resident’s. -
Jordan L. Newmark, MD, QME
Adjunct Clinical Associate Professor, Anesthesiology, Perioperative and Pain Medicine
Current Research and Scholarly InterestsClinical Interests:
Chronic & perioperative pain, interdisciplinary & procedural pain treatment, trauma anesthesia, spine surgery anesthesia, CRPS, nerve injury
Academic Interests:
- Graduate & undergraduate medical education, medical simulation & immersive learning, performance assessment & evaluation, adult learning theory, clinician selection processes, patient safety & quality of care, health equity
