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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. LESTER KALLUS M.D.
NPI 1154357887
Emergency Medicine in Stony Brook, NY

Active since June 24, 2006
UNIVERSITY HOSPITAL, L4, STONY BROOK, NY 11794(631) 444-2499 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Lester Kallus M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. LESTER KALLUS M.D. (NPI 1154357887) is an individual emergency medicine provider in Stony Brook, New York, licensed in New York (132623) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1154357887
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. LESTER KALLUSCredential: M.D.
Location AddressUNIVERSITY HOSPITAL, L4Stony Brook, NY 11794-0001
Mailing AddressPo Box 1559Stony Brook, NY 11790-0989 · (631) 444-2499
Phone(631) 444-2499
Sole ProprietorNo
Enumeration DateJune 24, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1154357887 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in NY · 132623
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
UNIVERSITY HOSPITAL, L4, Stony Brook, NY 11794
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Other Identifiers 3

Other4539569NY · Aetna
Medicaid01278660NY
Other02F03NY · Empire Bc.bs

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. CHRISTOPHER CARLEO M.D.
Emergency Medicine
UNIVERSITY HOSPITAL, L4
STONY BROOK, NY 11794
Suffolk County (631) 444-2499
DR. ANDREA LIBUTTI M.D.
Emergency Medicine
UNIVERSITY HOSPITAL, L4
STONY BROOK, NY 11794
Suffolk County (631) 444-2499
DR. FREDERICK SCHIAVONE M.D.
Emergency Medicine
UNIVERSITY HOSPITAL, L4
STONY BROOK, NY 11794
Suffolk County (631) 444-2499
DR. ERIKA H NEWTON M.D.
Emergency Medicine
UNIVERSITY HOSPITAL, L4
STONY BROOK, NY 11794
Suffolk County (631) 444-2499
DR. MARK HENRY M.D.
Emergency Medicine
UNIVERSITY HOSPITAL, L4
STONY BROOK, NY 11794
Suffolk County (631) 444-2499
MR. SCOTT MARCHINI P.A.
Physician Assistant
UNIVERSITY HOSPITAL, L4
STONY BROOK, NY 11794
Suffolk County (631) 444-2499
DR. ZENGMIN YAN M.D.
Radiology (Neuroradiology)
UNIVERSITY HOSPITAL, L4
STONY BROOK, NY 11794
Suffolk County (631) 444-6919
DR. SHERI FORD
Radiology (Diagnostic Radiology)
UNIVERSITY HOSPITAL, L4
STONY BROOK, NY 11794
Suffolk County (631) 444-6919

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Lester Kallus's NPI number?

The NPI number for Lester Kallus is 1154357887. It was assigned to this individual provider in the NPPES registry on June 24, 2006.

Where is Lester Kallus located?

Lester Kallus practices at University Hospital, L4, Stony Brook, NY 11794. The listed phone number is (631) 444-2499.

What is Lester Kallus's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

When was this NPI record last updated?

The NPPES record for Lester Kallus was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.