About Me

Dr. Tateshima is fully trained in interventional neuroradiology, CNS endovascular surgery, and endovascular neurosurgery. He specializes in acute stroke interventions, complex vascular malformation, carotid artery disease, and brain aneurysm embolization using state-of-the-art, minimally invasive image-guided techniques. His research interests have focused on the biorheology of brain aneurysms, in vitro treatment simulation, and developing novel low invasive treatments. He has 140 peer-reviewed publications, 50 invited articles, 300 scientific abstracts, and holds several research grants. He has filed various patents on novel endovascular device coating, delivery systems, and a stroke treatment catheter design. He is currently involved in clinical trials of new treatments for stroke in the US. He received multiple awards for his research from national and international scientific societies. Dr. Tateshima is also a professor of radiology and neurosurgery at UCLA Medical Center and School of Medicine.

Areas of Interest: 
  • Brain Aneurysm
  • Brain AVM
  • Carotid Stenosis
  • Stroke


Provider Specialty

Neuroradiology, Radiology



Fellowship - Interventional Neuroradiology

Division of Interventional Neuroradiology, UCLA Medical Center, Los Angeles, CA. Department of Endovascular Neurosurgery

Fellowship - Interventional Neuroradiology

Department of Neurosurgery, Kobe City General Hospital, Kobe, Japan


Department of Neurological Surgery, The Jikei University Hospital, Tokyo, Japan

Medical Education

Tokyo Jikei University School of Medicine

Locations & Affiliations


Memorial Medical Building

2865 Atlantic Avenue

Suite 223

Long Beach, CA

Insurances Accepted

United HealthCare PPO
TriCare West(HN)/TriWest Healthcare(BSC)
Humana PPO
Health Net PPO
Cigna PPO
Blue Shield PPO
Anthem PPO
Aetna PPO
BlueShield Trio Commercial HMO
Clever Care Medicare Advantage HMO
Anthem Vivity HMO
Health Net Commercial HMO
Anthem Commercial HMO
SCAN Medicare Advantage HMO
Cigna Value/Select HMO
Alignment Medicare Advantage HMO
UHC Commercial HMO
Aetna Medicare Advantage HMO
Aetna Commercial HMO
UHC Harmony Commercial HMO
BlueShield Commercial HMO
Centivo ACO
Cigna Commercial HMO
Anthem Pathway HMO