Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Klaus Dittmar, MD

Individual provider Hematology & Oncology Physician · NPI 1245239664

Dr. Klaus Dittmar, MD is a Hematology/Oncology in New Hyde Park, New York. Qualified in 1957, 69 years ago. Practices with New York University, a 5,884-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
69
Licensed in
NY
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1999 Marcus Ave Ste 306
New Hyde Park, NY 11042-1028
Phone: (516) 627-1221
Fax: (516) 627-6857
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 089981 (NY)

Record details

NPI number1245239664
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 18, 2005
Last updated in NPPESMarch 25, 2021
Certification dateMarch 25, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolOTHER
Graduated 1957 (69 years in practice)
Group practice New York University — 5884 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in New Hyde Park