Mohammed Ahmed, MD

Neuropsychiatrist and Medical Director

Hossein Ansari, MD, FAAN, FAHS

Headache and Facial Pain Specialist

Jennifer Sumner, PhD

Neuropsychologist and Licensed Clinical Psychologist Clinical Rehabilitation

Kristoffer Nissinen, MD

Board Certified Neurologist Memory/Cognitive Disorder and Concussion Expert

Collin Liu, MD

Neurologist, Neuroimaging Expert, Specialist in Memory and Headache Disorders

Khashayar Dashtipour, MD, PhD

Movement Disorder Specialist

Robert Fox, MD, PhD

Board Certified Rheumatologist

Shan Siddiqi, MD

Harvard Neuropsychiatrist and Kaizen Advisor

Ida Babakhanyan, PhD


Nicole French, PMHNP

Board Certified Psychiatric Mental Health Nurse Practitioner

Kristoffer Ancho, PMHNP-BC

Board Certified Psychiatric Mental Health Nurse Practitioner (PMHNP-BC)

Marisa Pappas, LCSW

LCSW Licensed Clinical Social Worker

Nelida Vallar

Office Manager


Christine N. Smith, Ph.D.

Cognitive Neuroscientist

Lisa M. Weiss, O.D., F.C.O.V.D.

Primary Care Optometry specializing in Optometric Vision Therapy and Neuro-rehabilitative Optometry