School of Medicine
Showing 1-100 of 960 Results
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Chelsea Ma, MD
Clinical Assistant Professor, Dermatology
BioChelsea Ma, M.D. is a Clinical Assistant Professor of Dermatology. Dr. Ma received a Bachelor of Arts degree in human biology from Stanford University. She attended medical school at the University of California Davis, and internship at Beth Israel Deaconess Medical Center, Harvard Medical School. She completed her dermatology residency at University of California Davis, serving as Chief Resident her final year. She completed a clinical research fellowship, focusing on neutrophilic dermatoses, blistering diseases, melanoma, eczema and psoriasis. Her clinical interests include general dermatology and complex medical dermatology.
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Lora Ma-Fukuda
Director of Digital Media, Communications
Current Role at StanfordDirector of Digital Media, Stanford Medicine Office of Communications
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Michael Ma
Associate Professor of Cardiothoracic Surgery (Pediatric Cardiac Surgery)
Current Research and Scholarly InterestsOur lab aims to understand the biomechanics that govern a wide spectrum of congenital heart defects, and how those biomechanics change with contemporary operative repair strategies. We simulate operations virtually via CFD, and in ex vivo and in vivo animal models, and analyze how the changes we make alter fluid flow, pressure, and stresses throughout the system. We hope that these experiments can impact and optimize existing techniques that translate quickly to the operating room.
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Qian Ma, MD, PhD
Clinical Assistant Professor, Adult Neurology
Current Research and Scholarly Interestsneurological complications from cancer treatment
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Qianheng Ma
Postdoctoral Scholar, Psychiatry
BioQianheng (Jessica) Ma obtained her PhD degree of biostatistics at University of Chicago under the supervision of Prof. Donald Hedeker and is the 2021 recipient of the dissertation grant from Society of Multivariate Experimental Psychology (SMEP). Her current research focus are modern statistical methods and deep learning techniques for mining (multivariate) intensive longitudinal data especially psychological/behavioral measures collected by mobile/wearable devices. Besides research, she loves playing the piano and is good at Jazz improvisation and she can speak fluent Cantonese.
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Quan Maq Ma
Postdoctoral Scholar, Genetics
BioQuan (Maq) Ma is a postdoctoral researcher in the Department of Genetics at the Stanford School of Medicine. His research focuses on developing high-throughput sequencing technologies to study RNA modifications and identify substrates of RNA-binding proteins using biochemical and chemical biology approaches. Maq is also interested in the role of RNA editing in inflammatory chronic diseases.
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Stephen Ma
Clinical Assistant Professor, Medicine
BioStephen Ma is a Clinical Assistant Professor in the Division of Hospital Medicine at Stanford University School of Medicine. His undergraduate degree was in Electrical Engineering at Princeton University, after which he pursued his MD/PhD at Columbia University. He then moved to Stanford University for his residency in Internal Medicine and fellowship in Clinical Informatics prior to joining the faculty. His clinical expertise is in the care of adult patients admitted to the inpatient general medicine services.
He is fellowship-trained in clinical informatics with the following areas of focus: 1) the implementation and evaluation of emerging technologies such as ambient AI scribes, 2) clinician-centered analytics and reporting, 3) the development of machine learning algorithms and workflows for standardization of care, and 4) care team communication and on-call scheduling. His overall approach to technology integration into healthcare emphasizes user-centered design, data-driven decision making, and rigorous demonstration of outcomes.
He previously performed his doctoral work in the laboratory of Professor Gordana Vunjak-Novakovic where he developed human cardiac models of disease incorporating patient-derived stem cells, optogenetics, tissue engineering, optoelectronics, and video processing. -
David Maahs
Lucile Salter Packard Professor of Pediatrics and Professor, by courtesy, of Epidemiology and Population Health
BioDr David M. Maahs is the Lucile Salter Packard Professor of Pediatrics, Division Chief of Pediatric Endocrinology, and Associate Chair for Academic Affairs in Pediatrics at Stanford University and the Lucile Packard Children’s Hospital. He earned his MD followed by Pediatric Residency at the University of New Mexico. After 3 years on New Mexico’s faculty, Dr. Maahs completed a Pediatric Endocrinology fellowship and a concurrent PhD in Epidemiology at the University of Colorado. He remained on Colorado’s faculty for 10 years, advancing to Professor of Pediatrics before moving to Stanford. Prior to his medical career, Dr. Maahs received a BA and MA in English from the University of Kansas and was inspired to pursue a medical career after serving in the Peace Corps with assignments in Tunisia and the Central African Republic.
Dr. Maahs’ leadership experiences include being a past co-Chair (2013-16) for Protocols and Publications with the Type 1 Diabetes Exchange for which he continues as Director of International Collaborations. This complements his role as President-elect for the International Society of Pediatric and Adolescent Diabetes (ISPAD, 2021-25) and Editor-in-Chief for the 2018 ISPAD Clinical Practice Consensus Guidelines. He served on the Professional Practice Committee for the American Diabetes Association (ADA, 2016-18), which writes the annual ADA Standards of Care. Previously, he served on the ADA Scientific Sessions committee representing the Council on Youth. He has also served on national committees for the American Heart Association, the Pediatric Endocrine Society, and multiple journal editorial boards and review committees.
His scholarly interest is improving care and preventing complications in people with type 1 diabetes (T1D). Along with Dr Peter Chase, he is author of the 12th and 13th editions of Understanding Diabetes, or ‘Pink Panther,’ which are the most widely used educational books for children newly diagnosed with T1D, distributed internationally by the Juvenile Diabetes Research Fund (JDRF). More specifically, he has conducted epidemiologic studies that help generate hypotheses for clinical studies, including trials to develop artificial pancreas systems to improve glucose control, lower disease burden, prevent the complications of diabetes, and reduce disparities in diabetes care. He is author or co-author of over 350 research publications. His multi-disciplinary research has been funded by the JDRF, the National Institutes of Diabetes and Digestive and Kidney Diseases (NIDDK), the Helmsley Charitable Trust, and the National Science Foundation (NSF).
Dr Maahs is Associate Director for the recently formed and NIDDK P30 funded Stanford University Diabetes Research Center (https://sdrc.stanford.edu). His collaborations extend to his role as Principal Investigator (PI) or steering committee member for NIH funded multi-center clinical trials including the FLEX, PERL, and ACTION studies as well as multiple Artificial Pancreas clinical trials. Education, mentorship, and training leadership includes being Program Director with Dr. Georgeanna Klingensmith on the Barbara Davis Center T32 and K12 training grants in Pediatric Endocrinology while at the University of Colorado. He is the PI on the Stanford NIH funded K12 "Training Research Leaders in Type 1 Diabetes.' Dr Maahs is also the Associate Chair for Academic Affairs for the Department of Pediatrics.
While in the Peace Corps, David met his wife, Christine Walravens, who is also a Pediatrician at Stanford. They enjoy outdoor activities and traveling with their adult children. -
Alex Macario MD MBA
Professor of Anesthesiology, Perioperative and Pain Medicine (MSD)
On Leave from 01/05/2026 To 07/03/2026Current Research and Scholarly InterestsDr. Macario studies health care economics & outcomes, with a special focus on surgery and anesthesia. He is well known for helping develop the field of operating room management, and is keenly interested in the cost-effectiveness analyses of drugs and devices. For the past decade Dr. Macario has added medical education as a research priority to better understand methods to best teach students and residents.
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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. -
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.
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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.
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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.
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.
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Mohammad Madani
Adjunct Clinical Assistant Professor, Radiology
Current Research and Scholarly Interestscardiovascular and thoracic imaging research; interested trainees or collaborators may contact me at mmadani@stanford.edu
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Michelle Madore, Ph.D.
Clinical Associate Professor (Affiliated), Psych/Public Mental Health & Population Sciences
Staff, Psych/Public Mental Health & Population SciencesBioDr. Madore is multiracial, Filipina woman working as a Clinical Neuropsychologist at VA Palo Alto Healthcare System (VAPAHCS) in the Mental Illness Research, Education and Clinical Center (MIRECC). Here she serves as the Director of the National Clinical Transcranial Magnetic Stimulation (TMS) Program whose mission is to: 1) increase the availability of Transcranial Magnetic Stimulation (TMS) for treatment-resistant depression in Veterans and (2) gain a greater understanding of the treatment efficacy of TMS in our complex Veteran population. She is also the Co-Director of the Sierra Pacific MIRECC Advanced Fellowship at VAPAHCS. Dr. Madore is the Co-PI for studies looking at the clinical efficacy and safety for substance use disorders, specifically methamphetamine and alcohol. Dr. Madore is also a Clinical Associate Professor (Affiliated) at Stanford University School of Medicine’s Department in Psychiatry and Behavioral Sciences.
She received her Ph.D. in clinical psychology from the University of Cincinnati, where she received specialized training in neuropsychology. Dr. Madore completed her pre-doctoral internship at the VA Palo Alto Health Care System (VAPAHCS). She has completed postdoctoral training focused on clinical neuropsychology and neurorehabilitation research at VA Martinez, San Francisco VA Medical Center and VAPAHCS.
Dr. Madore is involved in several professional organizations and serves in several leadership positions. She is the Editor for the Asian American Journal of Psychology and Deputy Editor for Transcranial Magnetic Stimulation. -
Sasidhar Madugula
Postdoctoral Scholar, Neurosurgery
Current Research and Scholarly InterestsMy research focuses on high-precision neural interfaces and the development of next-generation brain-computer interfaces (BCIs) for sensory and motor restoration. I am particularly interested in the biophysics of electrical stimulation, systems neuroscience, and the decoding of neural activity for high-fidelity communication and control. My work spans both fundamental and translational neuroscience.
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Merritt Maduke
Professor of Molecular and Cellular Physiology
Current Research and Scholarly InterestsMolecular mechanisms of ion chnanels & transporters studied by integration of structural and electrophysiological methods.
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Holden Maecker
Professor (Research) of Microbiology and Immunology
Current Research and Scholarly InterestsI'm interested in immune monitoring of T cell responses to chronic pathogens and cancer, and the correlation of T cell response signatures with disease protection.
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Paul M. Maggio, MD, MBA, FACS
Clinical Professor, Surgery - General Surgery
BioDr. Paul Maggio is a Professor of Surgery, Chief Quality Officer for Stanford Health Care, and Associate Dean for Quality and Clinical Affairs in the Stanford School of Medicine. He trained in General Surgery at Brown University and obtained advanced training in Adult Surgical Critical Care and Trauma at the University of Michigan. He holds a Master of Business Administration from the University of Michigan and is triple board certified in General Surgery, Critical Care, and Medical Informatics. His clinical focus is on Acute Care Surgery and Critical Care Medicine, and his academic career has been centered on quality improvement, patient safety, and the application of systems engineering to enhance the delivery of healthcare.
Dr. Maggio participates in the National Committee on Healthcare Engineering for the American College of Surgeons and has served on the Baldrige Board of Examiners to recognize organizations with the highest presidential honor for performance excellence. Dr. Maggio received the SHC Board of Hospital Director’s Denise O’Leary Award for Clinical Excellence in 2013 -
David Magnus, Ph.D.
Thomas A. Raffin Professor of Medicine and Biomedical Ethics and Professor (Teaching) of Medicine (Primary Care and Population Health)
Current Research and Scholarly InterestsGenetic testing, gene therapy, genetically engineered organisms, and the history of eugenics. Stem cell research and cloning, and egg procurement. Examining ethical issues in reproductive technologies. Organ transplantation including donation after cardiac death, ethics of listing decisions. End of life issues in both adults and children.
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Kenneth Mahaffey
Professor of Medicine (Cardiovascular Medicine)
BioClinical Focus: Cardiovascular Medicine: Atrial Fibrillation; Chronic CAD; ACS;
Research Focus:
My primary research interest is the design and conduct of multicenter clinical trials and analyses of important clinical cardiac issues using large patient databases. My research focuses on novel anticoagulation agents for the treatment of acute coronary syndromes and atrial fibrillation, the study of agents targeted to protect the myocardium during reperfusion therapy for acute myocardial infarction, and the evaluation of cardiovascular safety of diabetic therapies. I am also interested in the methodology of clinical trials. Current research activities include standardization of the definition of myocardial infarction used in clinical trials, the adjudication of suspected clinical endpoint events by Clinical Event Committees (CEC), and the efficient operational conduct of large multinational clinical trials.
Administrative Focus: Associate Dean, Clinical Research School of Medicine; Vice Chair of Clinical Research Department of Medicine; Director Stanford Center for Clinical Research; Member of the Stanford IRB
Professional Training:
1985 Stanford University, BS Chemistry
1989 University of Washington, MD
1993 University of Arizona, Internship/Residency/Chief Residency
1996 Duke University, Fellowship in Cardiology
1996 Duke University, Faculty in Cardiology
2013 Stanford University, Faculty Cardiovascular Medicine -
Vinit B. Mahajan, MD, PhD
Professor of Ophthalmology
Current Research and Scholarly InterestsOur focus is the development of personalized medicine for eye diseases through translation of our discoveries in proteomics, genomics, and phenomics in humans, mice and tissue culture models.
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Abdelkader Mahammedi
Clinical Associate Professor, Radiology
BioDr. Abdelkader Mahammedi is Associate Professor of Neuroradiology at the Department of Radiology, Stanford University School of Medicine. He completed medical school at the University of Algiers in Algeria, and then continued a postdoctoral research fellowship in Diagnostic Radiology at Johns Hopkins Hospital under the mentorship of Dr. Stanley Siegelman. Prior to becoming a specialist neuroradiologist, Dr. Mahammedi completed a Neuroradiology fellowship at the Cleveland Clinic Imaging Institute after having completed residencies in both Nuclear Medicine and Diagnostic Radiology. His specialty interests include brain tumors, stroke, small vessel disease, head and neck imaging, and functional magnetic resonance imaging (fMRI). Dr. Mahammedi has contributed to over 30 peer-reviewed publications, including lead authoring multiple articles in high-impact journals. During the beginning of the COVID-19 pandemic, he led and collaborated with multiple institutions from Italy, Spain, and Brazil. His work was considered the first and largest study in the literature that systematically characterized neurological symptoms and neuroimaging features in hospitalized COVID-19 patients, which was published in the journal Radiology. Recently, he has published the most recent multicenter and global COVID-19-related articles, which were featured by the international media in more than 25 languages including 200 newspapers, CNN, BBC, NPR, local televised broadcasts, and the 2020 RSNA Press Release. He co-authored multiple books, including “Imaging Appearance of Migraine and Tension Type Headache” and "Humanizing BrainTumors: Strategies for You and Your Physician" which was published in 2022. Dr. Mahammedi has received numerous awards and honors, including being selected as a semi-finalist for the prestigious Cornelius Dyke Award of the American Society of Neuroradiology (ASNR) 2021, and Best Case Award at the American Institute of Radiologic Pathology (AIRP) in Neuroradiology. In 2014, he was recognized as one of the authors with top-cited articles for his work in the Journal of Thoracic Imaging at the Society of Thoracic Imaging (STR) meeting, where he introduced a new technique for early detection of pulmonary hypertension on CT scans.
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Bernadett Mahanay
Fellowship Programs Manager, Anesthesiology, Perioperative and Pain Medicine
Current Role at StanfordFellowship Programs Manager
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Kelly Mahaney
Assistant Professor of Neurosurgery
BioDr. Mahaney is a Pediatric Neurosurgeon with clinical interest in Hydrocephalus, Craniovertebral Junction abnormalities, Spasticity, Spinal dysraphism and Myelomeningocele, Central Nervous System tumors, and Pediatric Epilepsy surgery. She completed residency training at the University of Iowa Hospitals and Clinics and subspecialty Pediatric Neurosurgery training at The Hospital for Sick Children in Toronto and the Barrow Neurologic Institute at Phoenix Children's Hospital. She is interested in advancing Neuro-endoscopic techniques in Pediatric Neurosurgical practice. Dr. Mahaney's research focuses on delineating the role of iron in the development of post-hemorrhagic hydrocephalus.
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Cormac Maher, MD, FAANS, FAAP, FACS
Botha Chan Endowed Professor
BioDr. Maher is a board-certified, fellowship-trained neurosurgeon with Stanford Health Care and is chief of neurosurgery at Lucile Packard Children’s Hospital Stanford. He is also the Botha Chan Endowed Professor in the Department of Neurosurgery, Division of Pediatric Neurosurgery at Stanford University School of Medicine.
Dr. Maher specializes in treating children who have neurological disorders — conditions of the brain, spinal cord, and nerves. In his adult practice, he offers particular expertise in treating Chiari malformation, which involves a portion of the brain pushing down into the spinal canal, and tethered spinal cord. Dr. Maher has served on many national organization committees for research and training in neurosurgery.
Dr. Maher has published more than 190 articles in peer-reviewed journals, including Journal of Neurosurgery, Neurosurgery, and Journal of Neurosurgery: Pediatrics. He has also served on the editorial boards for publications and organizations including the Journal of Neurosurgery Publishing Group. He has performed ad hoc review for many other journals and grant review for organizations including the American Association of Neurological Surgeons (AANS).
Dr. Maher has delivered hundreds of presentations at symposiums and conferences for national and international audiences. He is also a fellow of the American Academy of Pediatrics, AANS, and American College of Surgeons.
