Mark Harrigan, MD is an interventional neurosurgeon.  He received his medical degree from the University of Washington, did his residency in neurosurgery at the University of Michigan and a fellowship in interventional neuroradiology at the University of Buffalo.  He is Director of Interventional Neuroradiology and also the Interventional Neuroradiology Fellowship Director at the University of Alabama, Birmingham.  He is an author of more than 130 peer-reviewed publications.

John Deveikis, MD is an interventional neuroradiologist who received a medical degree from the University of Massachusetts Medical School in 1982.  Internship in Surgery and residency in Radiology at the University of Massachusetts Medical Center.  He had neuroradiology fellowships at Georgetown University Hospital in Washington, DC and the University of Western Ontario, London, Ontario.  After training he has had a long career performing neurointerventional procedures at various institutions including University of Michigan Medical Center, Medical University of South Carolina, University of Alabama at Birmingham, and Johns Hopkins All Children’s Hospital.  Currently he practices at Bayfront Health Medical Group, Saint Petersburg, Florida.