Maren Gregersen, MD, specializes in neurology with a focus in memory and cognitive disorders at Ochsner Health. Dr. Gregersen concentrates on the differences between what could be expected in a typically aging brain versus signs of an underlying pathologic process. She has expertise in diagnosing, treating and managing all types of dementia, including Alzheimer's Disease, vascular dementia, Lewy Body dementia, frontotemporal dementia, primary progressive aphasia and others. She believes that understanding her patient's and family's goals is imperative to determining the optimal diagnostic and treatment path, and she endeavors to provide high-quality, tailored care for each of her patients. 

Dr. Gregersen earned her medical degree from Tulane University School of Medicine in New Orleans in 2020. She completed her adult neurology residency in 2024 at Washington University in St. Louis through Barnes-Jewish Hospital. Dr. Gregersen then completed a fellowship in Aging and Dementia at Washington University in 2025. She actively participates in the American Academy of Neurology to stay updated on medical advancements. She was inducted into the Alpha Omega Alpha honor society while in medical school and remains an active member.  Dr. Gregersen is board-certified in neurology by the American Board of Psychiatry and Neurology. 

Dr. Gregersen is part of a superb care team of social workers, pharmacists, medical assistants and patient care navigators who help support the wide-ranging needs for patients with dementia and their caregivers.  She has been practicing at Ochsner since 2025.