Dr. Vinay K. Nijhawan

Matthew T. Walker, MD, a neuroradiologist at Endeavor Health, specializes in interpreting advanced imaging of the brain, spine and nervous system. Dr. Walker collaborates with referring clinicians to support timely diagnosis and guide treatment planning through accurate radiologic assessment. Dr. Walker is rated as a Distinguished provider by MediFind in the treatment of Fibromuscular Dysplasia (FMD). His top areas of expertise are Meningioma, Stroke, Cerebral Arteriovenous Malformation, Subarachnoid Hemorrhage, and Hormone Replacement Therapy (HRT).

Rajeev Sai Polasani, MD, a neuroradiologist at Endeavor Health, specializes in interpreting advanced imaging of the brain, spine and nervous system. He provides diagnostic expertise that supports timely evaluation and treatment of neurological conditions. Dr. Polasani is rated as a Distinguished provider by MediFind in the treatment of Fibromuscular Dysplasia (FMD). His top areas of expertise are Stroke, Cerebral Arteriovenous Malformation, Vertigo, and Herniated Disk.

Sidney Regalado, MD, an interventional radiologist at Endeavor Health, performs minimally invasive procedures using advanced imaging guidance. He specializes in diagnosing and treating a variety of conditions through targeted techniques that support faster recovery and reduced risk. Dr. Regalado is rated as a Distinguished provider by MediFind in the treatment of Fibromuscular Dysplasia (FMD). His top areas of expertise are Ascites, Peritonitis, Secondary Peritonitis, Bone Graft, and Vertebroplasty.