Donald Krieff, M.D.

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About Dr. Krieff Donald S. Krieff, D.O., F.A.C.O.S., is a board certified neurosurgeon at Neurological Surgery P.C. based in West Islip, NY with nearly 20 years of experience. The F.A.C.O.S. designation after Dr. Krieffâ??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 both complex cranial and spinal surgery. His career-long experience using microsurgical techniques continues to lead to excellent patient outcomes.