Dr. Klaus Dittmar is a hematologist in New Hyde Park, New York and is affiliated with multiple hospitals in the area, including NYU Langone Hospitals and North Shore University Hospital at Northwell Health. He received his medical degree from University of Heidelberg Faculty of Medicine and has been in practice for more than 20 years. Dr. Klaus Dittmar has expertise in treating chronic leukemia, lymphoma, among other conditions - see all areas of expertise. Dr. Klaus Dittmar accepts Medicare, Aetna, Humana, Cigna, Blue Cross, United Healthcare - see other insurance plans accepted.