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

Steven Allen

Individual provider Hematology & Oncology Physician · NPI 1558491944

Steven Allen is a Hematology/Oncology in Lake Success, New York. Graduated from Johns Hopkins University School of Medicine in 1977, 49 years ago. Practices with North Shore Health System Medical Faculty Group Practice Inc, a 158-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
49
Trained at
Johns Hopkins University School of Medicine
Licensed in
NY
In the registry since
2007

Practice location Address checks out

450 Lakeville Road The Monter Cancer Ctr
Lake Success, NY 11042
Phone: (516) 734-8959
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 134652 (NY)

Record details

NPI number1558491944
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedMarch 6, 2007
Last updated in NPPESJuly 8, 2007
Mailing address450 Lakeville Road, The Monter Cancer Center, Lake Success, NY 11042

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolJOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1977 (49 years in practice)
Group practice North Shore Health System Medical Faculty Group Practice Inc — 158 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Lake Success