Dr. Kreitzman received his medical degree from Saint George’s University School of Medicine in 1998, and then completed a medical internship at MCP/Hahnemann University Hospitals in Philadelphia, Pennsylvania. His Neurology training was obtained at the University of Massachusetts/Memorial Health Care Center under Dr. David Drachman, where he subsequently was named Chief Resident in 2001-02.

From 2002-2003 Dr. Kreitzman was a Clinical Instructor of Neurology at the Boston University School of Medicine, Boston, Massachusetts. There he gained fellowship training in Parkinson’s Disease and Movement disorders under Drs. J. Stephen Fink, Robert Feldman, Samuel Ellias, Peter Novak, and Director of the Movement disorders program, Marie Saint-Hilaire.

He served as a clinician in their very busy Parkinson’s Disease and Movement Disorders Center and helped launch their comprehensive deep brain stimulator program. Additionally he was a Co-Investigator in several clinical trials as well as epidemiological research studies.

In 2003 he relocated back to his hometown on Long Island, where he established the Parkinson’s Disease and Movement Disorders Center of Long Island.

He is a member of the Movement Disorders Society, the Movement Disorders Section of the American Academy of Neurology, and the American Academy of Neurology. He has published articles and abstracts in journals of his profession, and has given scientific presentations at national and international meetings on Parkinson's Disease.

Dr. Kreitzman also is a frequent speaker at local support groups, for physician continuing education, and serves on a number of pharmaceutical advisory boards.

In the fall of 2005 Dr. Kreitzman received an appointment as Assistant Professor of Neurology (Voluntary) at the State University of New York, Stony Brook. His activities include lectures to colleagues, residents, and medical students. Additionally, residents rotate through the center, to train in the care of Parkinson’s Disease and other movement disorders.

Currently Dr. Kreitzman and his staff are implementing comprehensive modalities for the treatment of Parkinson's Disease, tremor, dystonia, and other movement disorders at the center and expanding the center's activities to provide extensive supportive services; patient, caregiver, and community education; and access to clinical research studies. The center is actively enrolling patients in several clinical trials.