Provider profile · NPI 1558491944

Steven Allen

Internal Medicine, Hematology & Oncology · Lake Success, NY · NPI 1558491944 · No federal exclusion match

✔ Verified against the public CMS NPPES registry & HHS-OIG LEIE as of Jun 21, 2026. Source-linked, daily-refreshed. Public data only — no PHI.

Registry details

Type

Individual

Primary specialty

Internal Medicine, Hematology & Oncology

Enumerated

Mar 6, 2007

License(s)

134652 (NY)

Addresses on file

PurposeAddressCity/StatePhone
MAILING450 LAKEVILLE ROAD THE MONTER CANCER CENTERLake Success, NY 11042516-734-8959
LOCATION450 LAKEVILLE ROAD THE MONTER CANCER CENTERLake Success, NY 11042516-734-8959

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