Brian-Fred M. Fitzsimmons, MD

Associate Professor


  • Neurosciences - Froedtert Hospital Clinic
  • 900 N. 92nd St.
  • Milwaukee, WI 53226


  • Neurology

Neuroscience Center - Froedtert Hospital Specialty Clinics

Dr. Fitzsimmons' research interests include the application and development of novel endovascular techniques for the treatment of acute stroke and cerebral aneurysms, with the intention of improving the safety and efficacy of such treatments, and increasing the number of patients who may be eligible to benefit from these treatments.

Voted one of the Best Doctors in America®


Diseases and Conditions

  • Brain Aneurysm
  • Carotid Artery Disease
  • Stroke
  • Transient Ischemic Attack
  • Carotid Cavernous Fistula (CCF)
  • Arteriovenous Malformation (AVM), Brain
  • Arteriovenous Malformation (AVM), Spinal
  • Nosebleeds
  • Dural Venous Sinus Stenosis
  • Intracranial Arterial Stenosis

Treatments and Services

  • Acute Stroke Therapy
  • Intracranial Angioplasty and Stenting
  • Pre-Operative Embolization of Head, Neck and Spine Tumors
  • Wada Test
  • Cerebral Aneurysm Embolization
  • Nosebleed Embolization
  • Carotid Angioplasty and Stenting
  • Dural Sinus Angioplasty and Stenting
  • Inferior Petrosal Sinus Sampling
  • Arteriovenous Malformation (AVM) Embolization
  • Vertebral Artery Angioplasty and Stenting
  • Interventional Neuroradiology
  • Pre-Operative Tumor Embolization
  • Virtual Visit

Patients Ages Seen

  • Infant
  • Child
  • Adolescent
  • Adult
  • Senior


  • English

Hospital Affiliations

  • Froedtert Hospital – Milwaukee

Board Certifications

  • Neurology
  • Vascular Neurology

Clinic Locations


Dr. Fitzsimmons is an Interventional Neurologist who specializes in the endovascular treatment of neurovascular disorders, including stroke, carotid and intracranial arterial stenosis, brain aneurysms and arterial venous malformation of the brain and spine. He completed fellowship training in stroke and neurocritical care at the Neurological Institute of New York at Columbia University Medical Center, and in interventional neuroradiology at New York University Medical Center.

Education and Training

Doctor of Medicine - University of Florida College of Medicine - Gainesville, FL (1996)
Fellowship in Interventional Neuroradiology - New York University Medical Center - New York City, NY (2004-2006)
Fellowship in Neurological Intensive Care - Columbia University Medical Center - New York, NY (2001-2002)
Fellowship in Stroke and Cerebrovascular Diseases - Columbia University Medical Center - New York, NY (2000-2001)
Residency in Neurology - Columbia University Medical Center - New York, NY (1997-2000)
Internship in Internal Medicine - Massachusetts General Hospital - Boston, MA (1996-1997)