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Michael T. Lawton, MD
Professor and Chair, Neurosurgery
Chief, Neurovascular Surgery
- (602) 406-3181
- Fax: (602) 406-4402
Recipient of the prestigious Cushing Award in 2023
More than 5,350 aneurysms treated
More than 1,300 AVMs removed surgically
More than 1,000 peer-reviewed publications
Has operated on more than 1,400 cavernous malformations
More than 800 cerebrovascular bypasses performed
Michael T. Lawton, MD, is the President and CEO of Barrow Neurological Institute, Robert F. Spetzler Endowed Chair for Neurosciences, and Chair of the Department of Neurosurgery. He is board certified by the American Board of Neurological Surgery.
Dr. Lawton’s neurosurgical expertise includes cerebrovascular disorders (aneurysms, arteriovenous malformations, cavernous malformations, and stroke) and skull base tumors. He has experience in treating more than 5,350 brain aneurysms, 1,300 arteriovenous malformations (AVMs), and 1,400 cavernous malformations, including more than 400 in the brainstem and other highly delicate areas of the brain. He is a member of the the American Academy of Neurological Surgery, the American Association of Neurological Surgeons, the Congress of Neurological Surgeons, the Society of Neurological Surgeons, and the World Academy of Neurological Surgery.
Dr. Lawton received his medical degree from Johns Hopkins University School of Medicine in Baltimore, Maryland and an undergraduate degree in biomedical engineering from Brown University in Providence, Rhode Island. He completed his neurosurgery residency at Barrow, where he also completed a fellowship in cerebrovascular and skull base surgery. After joining the faculty at the University of California, San Francisco, he later completed a fellowship in endovascular surgery there.
Dr. Lawton’s research studies the formation, underlying genetics, and rupture of brain AVMs, as well as the hemodynamics, rupture, and computational modeling of brain aneurysms. His clinical research studies the anatomy of microsurgical approaches and clinical outcomes of microsurgery for aneurysms, AVMs, and bypass surgery. He is the principal investigator for the Brain Vascular Malformation Consortium, a National Institutes of Health (NIH)-funded multicenter group studying the genetics and clinical course of rare vascular diseases of the brain. He has published more than 1,000 peer-reviewed articles, eight single-author textbooks, and more than 120 book chapters.
Knowing neurosurgical education must continue during the pandemic, Dr. Lawton launched Seven Series, a collection of narrated case studies with histories, imaging studies, and illustrations from the Barrow Neuroscience Publications animation studio. He also initiated Barrow Neurosurgery Base Camp, a series of videos capturing resident teaching rounds to help neurosurgeons sharpen their skills. These efforts have helped to make him the one of the most prominent and influential neurosurgeons on X, formerly known as Twitter. Dr. Lawton also co-founded Mission: BRAIN, a teaching mission to raise the level of neurosurgery practiced in developing countries. The organization conducts annual missions in Mexico and Asia.
To request an appointment with Dr. Lawton, please call (602) 406-3181.

- Aetna
- Blue Cross Blue Shield
- Cigna
- Medicare Part B
- Mercy Care at the Phoenix and Chandler Locations
- MultiPlan/AMN/RAN
- United Healthcare
- Fellowship, University of California, San Francisco, Endovascular Surgery, 2008-2011
- Fellowship, Barrow Neurological Institute, Cerebrovascular and Skull Base Surgery, 1995-1996
- Residency, Barrow Neurological Institute, Neurosurgery, 1991-1997
- Internship, Johns Hopkins University School of Medicine, General Surgery, 1990-1991
- MD, Johns Hopkins University School of Medicine, 1990
- ScB, Brown University, Engineering, 1986
- American Association of Neurological Surgeons (AANS)
- Congress of Neurological Surgeons (CNS)
- Section of Cerebrovascular Surgery of the AANS and CNS
- American Academy of Neurological Surgery
- World Academy of Neurological Surgery
- Society of Neurological Surgeons
- Western Neurosurgical Society
- Cushing Award for Technical Excellence and Innovation in Neurosurgery, AANS, 2023
- William L. Young Achievement Award, The Aneurysm and AVM Foundation, 2017
- Distinguished Service Award, University of California, San Francisco, 2017
- Christopher C. Getch Fellowship Award, Congress of Neurological Surgeons, 2015
- Honorable Mention, PROSE Award, Textbook in Medicine Category, American Publishers Awards for Professional and Scholarly Excellence, Seven AVMS: Tenets and Techniques for Resection, 2015
- Top Doctor, Castle Connolly, 2007-present
- Hunt-Wilson Lecture, American Association of Neurological Surgeons, 2013
- Finalist, Ben Franklin Award, Professional and Technical Category, Independent Book Publishers Association, Seven Aneurysms: Tenets and Techniques for Clipping, 2012
- Super Doctor, MSP Communications, 2012
- Patients’ Choice Award, American Registry, 2011
- Award of Merit, Association of Medical Illustrators, Seven Aneurysms: Tenets and Techniques for Clipping, 2011
- Top Doctor, 415 Top Doctors, Marin Magazine, 2011-2017
- Best Doctors in America, Best Doctors, 2007-present
- Diane D. Ralston Clinical and Basic Science Teaching Award, University of California, San Francisco, Department of Neurological Surgery, 2006
- Harold Rosegay Teaching Award, University of California, San Francisco, Department of Neurological Surgery, 2005
- Young Neurosurgeon Award, World Federation of Neurosurgical Societies and International Congress of Neurological Surgery, 1997
- Resident Research Award, Rocky Mountain Neurosurgical Society, 1996-1997
- Sigma Xi, Scientific Research Honor Society, 1986
- Honors in Engineering, Brown University, 1986
- Meiklejohn Society, Brown University, 1984-1986
Ventral Midline Hysterectomy, Ovariectomy, and Ovariohysterectomy in Mus Musculus: A Surgical Protocol.
Date: 02/2025
Authors: Peyton L Nisson, Takuma Maeda, Hiroki Uchikawa, Oscar Cisneros, Michael T Lawton, Tomoki Hashimoto
Abducens Nerve Duplication: Novel Intraoperative and Radiographic Observation of a Rare Anatomical Variant.
Date: 02/2025
Authors: Christopher S Graffeo, Lea Scherschinski, Arnau Benet, Dimitri Benner, Lea M Alhilali, Richard Dortch, Visish M Srinivasan, Michael T Lawton
Vascular Endothelial Growth Factor and the Pathogenesis of Intracranial Aneurysms: A Systematic Review on the Missing Link in a Complex Pathway.
Date: 12/2024
Authors: Peyton L Nisson, Michael T Lawton, Oscar Cisneros, Takuma Maeda, Nestor R Gonzalez, Juhana Frösen, Tomoki Hashimoto
Extracranial-intracranial bypass using a cephalic vein graft for iatrogenic internal carotid artery injury during functional endoscopic sinus surgery: illustrative case.
Date: 10/2024
Authors: Nader Wehbi, Redi Rahmani, Arnau Benet, Jennifer E Kim, Lea Scherschinski, Joshua S Catapano, Austin W Anthony, Ashutosh P Jadhav, Andrew F Ducruet, Felipe C Albuquerque, Andrew S Little, Griffin D Santarelli, Shawn M Stevens, Ameya A Jategaonkar, Michael T Lawton
Extracranial-intracranial bypass using a cephalic vein graft for iatrogenic internal carotid artery injury during functional endoscopic sinus surgery: illustrative case.
Date: 10/2024
Authors: Nader Wehbi, Redi Rahmani, Arnau Benet, Jennifer E Kim, Lea Scherschinski, Joshua S Catapano, Austin W Anthony, Ashutosh P Jadhav, Andrew F Ducruet, Felipe C Albuquerque, Andrew S Little, Griffin D Santarelli, Shawn M Stevens, Ameya A Jategaonkar, Michael T Lawton
- English







- (602) 406-3181
- Fax: (602) 406-4402

Michael T. Lawton, MD
Professor and Chair, Neurosurgery
Chief, Neurovascular Surgery
- (602) 406-3181
- Fax: (602) 406-4402
Recipient of the prestigious Cushing Award in 2023
More than 5,350 aneurysms treated
More than 1,300 AVMs removed surgically
More than 1,000 peer-reviewed publications
Has operated on more than 1,400 cavernous malformations
More than 800 cerebrovascular bypasses performed
Michael T. Lawton, MD, is the President and CEO of Barrow Neurological Institute, Robert F. Spetzler Endowed Chair for Neurosciences, and Chair of the Department of Neurosurgery. He is board certified by the American Board of Neurological Surgery.
Dr. Lawton’s neurosurgical expertise includes cerebrovascular disorders (aneurysms, arteriovenous malformations, cavernous malformations, and stroke) and skull base tumors. He has experience in treating more than 5,350 brain aneurysms, 1,300 arteriovenous malformations (AVMs), and 1,400 cavernous malformations, including more than 400 in the brainstem and other highly delicate areas of the brain. He is a member of the the American Academy of Neurological Surgery, the American Association of Neurological Surgeons, the Congress of Neurological Surgeons, the Society of Neurological Surgeons, and the World Academy of Neurological Surgery.
Dr. Lawton received his medical degree from Johns Hopkins University School of Medicine in Baltimore, Maryland and an undergraduate degree in biomedical engineering from Brown University in Providence, Rhode Island. He completed his neurosurgery residency at Barrow, where he also completed a fellowship in cerebrovascular and skull base surgery. After joining the faculty at the University of California, San Francisco, he later completed a fellowship in endovascular surgery there.
Dr. Lawton’s research studies the formation, underlying genetics, and rupture of brain AVMs, as well as the hemodynamics, rupture, and computational modeling of brain aneurysms. His clinical research studies the anatomy of microsurgical approaches and clinical outcomes of microsurgery for aneurysms, AVMs, and bypass surgery. He is the principal investigator for the Brain Vascular Malformation Consortium, a National Institutes of Health (NIH)-funded multicenter group studying the genetics and clinical course of rare vascular diseases of the brain. He has published more than 1,000 peer-reviewed articles, eight single-author textbooks, and more than 120 book chapters.
Knowing neurosurgical education must continue during the pandemic, Dr. Lawton launched Seven Series, a collection of narrated case studies with histories, imaging studies, and illustrations from the Barrow Neuroscience Publications animation studio. He also initiated Barrow Neurosurgery Base Camp, a series of videos capturing resident teaching rounds to help neurosurgeons sharpen their skills. These efforts have helped to make him the one of the most prominent and influential neurosurgeons on X, formerly known as Twitter. Dr. Lawton also co-founded Mission: BRAIN, a teaching mission to raise the level of neurosurgery practiced in developing countries. The organization conducts annual missions in Mexico and Asia.
To request an appointment with Dr. Lawton, please call (602) 406-3181.


- (602) 406-3181
- Fax: (602) 406-4402
- Aetna
- Blue Cross Blue Shield
- Cigna
- Medicare Part B
- Mercy Care at the Phoenix and Chandler Locations
- MultiPlan/AMN/RAN
- United Healthcare
- Fellowship, University of California, San Francisco, Endovascular Surgery, 2008-2011
- Fellowship, Barrow Neurological Institute, Cerebrovascular and Skull Base Surgery, 1995-1996
- Residency, Barrow Neurological Institute, Neurosurgery, 1991-1997
- Internship, Johns Hopkins University School of Medicine, General Surgery, 1990-1991
- MD, Johns Hopkins University School of Medicine, 1990
- ScB, Brown University, Engineering, 1986
- American Association of Neurological Surgeons (AANS)
- Congress of Neurological Surgeons (CNS)
- Section of Cerebrovascular Surgery of the AANS and CNS
- American Academy of Neurological Surgery
- World Academy of Neurological Surgery
- Society of Neurological Surgeons
- Western Neurosurgical Society
- Cushing Award for Technical Excellence and Innovation in Neurosurgery, AANS, 2023
- William L. Young Achievement Award, The Aneurysm and AVM Foundation, 2017
- Distinguished Service Award, University of California, San Francisco, 2017
- Christopher C. Getch Fellowship Award, Congress of Neurological Surgeons, 2015
- Honorable Mention, PROSE Award, Textbook in Medicine Category, American Publishers Awards for Professional and Scholarly Excellence, Seven AVMS: Tenets and Techniques for Resection, 2015
- Top Doctor, Castle Connolly, 2007-present
- Hunt-Wilson Lecture, American Association of Neurological Surgeons, 2013
- Finalist, Ben Franklin Award, Professional and Technical Category, Independent Book Publishers Association, Seven Aneurysms: Tenets and Techniques for Clipping, 2012
- Super Doctor, MSP Communications, 2012
- Patients’ Choice Award, American Registry, 2011
- Award of Merit, Association of Medical Illustrators, Seven Aneurysms: Tenets and Techniques for Clipping, 2011
- Top Doctor, 415 Top Doctors, Marin Magazine, 2011-2017
- Best Doctors in America, Best Doctors, 2007-present
- Diane D. Ralston Clinical and Basic Science Teaching Award, University of California, San Francisco, Department of Neurological Surgery, 2006
- Harold Rosegay Teaching Award, University of California, San Francisco, Department of Neurological Surgery, 2005
- Young Neurosurgeon Award, World Federation of Neurosurgical Societies and International Congress of Neurological Surgery, 1997
- Resident Research Award, Rocky Mountain Neurosurgical Society, 1996-1997
- Sigma Xi, Scientific Research Honor Society, 1986
- Honors in Engineering, Brown University, 1986
- Meiklejohn Society, Brown University, 1984-1986
Ventral Midline Hysterectomy, Ovariectomy, and Ovariohysterectomy in Mus Musculus: A Surgical Protocol.
Date: 02/2025
Authors: Peyton L Nisson, Takuma Maeda, Hiroki Uchikawa, Oscar Cisneros, Michael T Lawton, Tomoki Hashimoto
Abducens Nerve Duplication: Novel Intraoperative and Radiographic Observation of a Rare Anatomical Variant.
Date: 02/2025
Authors: Christopher S Graffeo, Lea Scherschinski, Arnau Benet, Dimitri Benner, Lea M Alhilali, Richard Dortch, Visish M Srinivasan, Michael T Lawton
Vascular Endothelial Growth Factor and the Pathogenesis of Intracranial Aneurysms: A Systematic Review on the Missing Link in a Complex Pathway.
Date: 12/2024
Authors: Peyton L Nisson, Michael T Lawton, Oscar Cisneros, Takuma Maeda, Nestor R Gonzalez, Juhana Frösen, Tomoki Hashimoto
Extracranial-intracranial bypass using a cephalic vein graft for iatrogenic internal carotid artery injury during functional endoscopic sinus surgery: illustrative case.
Date: 10/2024
Authors: Nader Wehbi, Redi Rahmani, Arnau Benet, Jennifer E Kim, Lea Scherschinski, Joshua S Catapano, Austin W Anthony, Ashutosh P Jadhav, Andrew F Ducruet, Felipe C Albuquerque, Andrew S Little, Griffin D Santarelli, Shawn M Stevens, Ameya A Jategaonkar, Michael T Lawton
Extracranial-intracranial bypass using a cephalic vein graft for iatrogenic internal carotid artery injury during functional endoscopic sinus surgery: illustrative case.
Date: 10/2024
Authors: Nader Wehbi, Redi Rahmani, Arnau Benet, Jennifer E Kim, Lea Scherschinski, Joshua S Catapano, Austin W Anthony, Ashutosh P Jadhav, Andrew F Ducruet, Felipe C Albuquerque, Andrew S Little, Griffin D Santarelli, Shawn M Stevens, Ameya A Jategaonkar, Michael T Lawton
- English





