Marissa De Freese

Marissa De Freese, MD, FACS


Member of: Stamford Health Medical Group

About Me

Dr. De Freese joined the general surgery/ trauma team at Stamford Hospital in 2012. She is fellowship-trained in critical care with expertise in geriatric trauma and traumatic brain injury.

Dr. De Freese is involved in the education of surgical residents at Stamford Hospital and is the Director of Surgical Clerkship for Columbia University medical students. She provides trauma education throughout the region as an instructor for Advanced Trauma Life Support and Advanced Trauma Operative Management.

Her book chapter, “Pulmonary Anatomy,” is included in the first and second edition of Geriatric Trauma and Critical Care.

She is an active member of the Society of Critical Care Medicine, American College of Surgeons, Eastern Association for the Surgery of Trauma and Association of Women Surgeons.


English and Spanish


  • General Surgery
  • Trauma Surgery
  • Surgical Critical Care


Medical School

Robert Wood Johnson Medical School


Staten Island University Hospital


Yale New Haven Hospital

Board Certifications

  • Surgery - American Board of Surgery
  • Surgical Critical Care - American Board of Surgery

Insurance Accepted

The below is a list of all insurance plans accepted by Stamford Health Medical Group. Please be sure to confirm insurance coverage with your provider before scheduling your appointment.

If you are in need of emergency care, call 911.

The majority of the physicians on the Stamford Hospital Medical Staff are not employees or agents of the Hospital. They are independent practitioners who have been granted the privilege of using the Hospital's facilities for the care and treatment of their patients. This includes, but is not limited to, emergency department physicians, anesthesiologists, radiologists, surgeons, cardiologists, obstetricians, pathologists and other consultants who may treat patients.

Insurance listings are subject to change at any time. Please verify insurance plan acceptance when scheduling an appointment with a healthcare provider.