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Dr. Donald S. Krieff, Long Island Neurosurgeon


Dr Donald Krieff
Donald S. Krieff, D.O., F.A.C.O.S., is a board certified neurosurgeon at Neurological Surgery P.C. in West Islip on Long Island, NY with over 16 years experience. The F.A.C.O.S. designation after Dr. Krieff’s name signifies that he is a Fellow of the American College of Osteopathic Surgeons and meets their stringent standards in the areas of education and training, competence as a surgeon, professional credentials and ethical conduct.

The Long Island neurosurgeon treats adult and pediatric patients and is proficient in complex cranial and spinal surgery. He has special interests in computer-assisted resection of brain tumors and the management of traumatic injuries to the brain and spine.

Dr. Krieff’s Long Island neurosurgery group sees a high volume of patients. As a result, he and his fellow neurosurgeons have extensive experience treating both common and rare neurological diseases with the latest minimally invasive techniques and nonsurgical alternatives.

A highly acclaimed neurosurgeon, Dr. Krieff is down-to-earth with his patients and has a common-sense approach to medical problems. “People with back and neck problems have often been in pain for a long time and are seeking relief,” he explains. “We’re not looking to operate on patients just because we can. We just want patients to get better and if that requires nonsurgical management, that’s great.”

Dr. Krieff appreciates being associated with Neurological Surgery P.C., because it’s a full-service organization for neurological care, offering imaging studies, pain management and other nonsurgery alternatives.

Dr. Donald S. Krieff’s Neurosurgery Education and Experience

Dr. Krieff received his undergraduate degree in Biological Science from Florida International University and obtained his medical degree from Nova Southeastern University of the Health Sciences. He served his internship at Palmetto General Hospital and then completed his neurological surgery residency at Long Island Jewish Medical Center. In his last year of training, Dr. Krieff served as Neurological Surgery Chief Resident at Long Island Jewish Medical Center and North Shore University Hospital-Manhasset.

Upon completion of his training in 1998, Dr. Krieff began his neurosurgery practice in Fort Lauderdale, FL. He and his partner were the primary neurosurgeons at Broward General Medical Center. During the subsequent five years, Dr. Krieff developed expertise in treating traumatic brain injury as well as complex spinal injuries requiring stabilization and instrumentation. He served as the Chief of Neurosurgery at Broward General from 2000 until his move back to Long Island in 2003. After relocating to Long Island, Dr. Krieff was appointed Chief of Neurosurgery at Nassau University Medical Center, Nassau County’s busiest Level I trauma center.

Dr. Donald S. Krieff’s Neurosurgery Honors

Dr. Krieff has received several honors including:

  • First-place ranking in achievements with the Annual Clinical Assembly of Osteopathic Specialists and American College of Osteopathic Surgeons
  • Recipient of the “Annual Resident Achievement Award”
  • Recipient of the “Robert C. Erwin Literary Achievement Award”

 Throughout his career he has been involved in training medical students and residents. Dr. Krieff sits on the American Osteopathic Board of Surgery. He is intimately involved with the training, testing and board certification of young neurosurgeons.

Dr. Donald S. Krieff’s current appointments include:

  • Clinical Adjunct Professor in Neurosurgery at New York College of Osteopathic Medicine
  • Residency Evaluation and Standards Committee member for the American College of Osteopathic Surgeons
  • American Osteopathic Board of Surgery member
  • Neurological Surgery Board Examiner
  • Clinical Instructor in Neurosurgery, Nova Southeastern University College of Osteopathic Medicine.

Dr. Krieff has lectured at surgical and pediatric departments as well as the Nassau County Paramedics on many topics including:

  • “The Role of the Neurosurgeon on the Stroke Team”
  • “Contemporary Management of Head Injury”
  • “Contemporary Management of Traumatic Spinal Injuries”
  • “Diagnosis and Treatment of Brain Abscesses”
  • “Current Management of Hydrocephalus”
  • “When to Call a Neurosurgeon”

He is a Fellow in the American College of Osteopathic Surgeons and current member of the American Medical Association and the American Osteopathic Association.  

Interview video with Donald S. Krieff, D.O., F.A.C.O.S


"Within ten hours of the surgery I was walking pain-free" - Phil Dedora
A Visit to the ER Becomes the Road to Recovery for a Huntington Man NSPC Neurosurgeon, Dr. Donald Krieff, provides much-needed relief from a herniated disc. Read Story

" Dr. Krieff is AMAZING,
with capital letters. He went above and beyond the call of duty and gave me back my hearing when he removed my brain tumor.
- Patient, Ida DiLorenzo (read feature)

“I’m Living As Normal A Life As Anyone Else ... I Feel Good.”Remarkable care allows a young woman to recover from near-fatal traumatic brain injury (TBI) 
A near fatal accident resulted in severe bleeding and swelling in the left side of Jenna’s brain.   Read feature




Dr. Krieff is affiliated with the following hospitals

  • Winthrop University Hospital
  • South Nassau Communities Hospital
  • Mercy Medical Center
  • North Shore University Hospital
  • Huntington Hospital
  • Plainview Hospital
  • Franklin Hospital
  • Glen Cove Hospital
  • Syosset Hospital
  • Long Island Jewish Medical Center
  • St. Francis Hospital
  • Good Samaritan Hospital Medical Center
  • St. Catherine of Siena Medical Center
  • Southside Hospital
  • Nassau County Medical Center


(800) 775-7784 | (516) 300-1281

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