1. Home
  2. Directory
  3. New York
  4. Irvington
  5. Internal Medicine
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. LEONARDO ANDRES SIRULNIK MD PHD
NPI 1104894518
Internal Medicine - Hematology & Oncology in Irvington, NY

Active since March 10, 2006
19 MATTHIESSEN PARK S, IRVINGTON, NY 10533(617) 953-9329(914) 840-1435 Get Directions Write a Review

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

Record update history: Jul 13, 2026, May 22, 2026, May 2, 2026 and 1 more (4 updates tracked since 2026).

About Dr. Leonardo Andres Sirulnik Md Phd NPPES

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

DR. LEONARDO ANDRES SIRULNIK MD PHD (NPI 1104894518) is an individual hematology & oncology provider in Irvington, New York, licensed in New York (287353) and active in the NPI registry since March 2006.

NPPES Registry Identity

NPI1104894518
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameDR. LEONARDO ANDRES SIRULNIKCredential: MD PHD
Location Address19 MATTHIESSEN PARK SIrvington, NY 10533-1507
Mailing Address19 Matthiessen Park SIrvington, NY 10533-1507 · (617) 953-9329 · Fax (914) 840-1435
Phone(617) 953-9329
Fax(914) 840-1435
Sole ProprietorNo
Enumeration DateMarch 10, 2006
Last NPPES UpdateJuly 13, 20264 updates tracked since enumeration
NPPES CertifiedMay 22, 2026
✔ NPI 1104894518 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in NY · 287353
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
19 MATTHIESSEN PARK S, Irvington, NY 10533
Open in Google Maps ↗

Other Identifiers 7

Other219615Tufts
OtherAA2027Hphc
Other2025906Masshealth
Other80313Fallon Community Health P
Other3600312United Health Care
Other3364563Aetna Us Healthcare
Other4107454Cigna

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 Leonardo Sirulnik's NPI number?

The NPI number for Leonardo Sirulnik is 1104894518. It was assigned to this individual provider in the NPPES registry on March 10, 2006.

Where is Leonardo Sirulnik located?

Leonardo Sirulnik practices at 19 Matthiessen Park S, Irvington, NY 10533. The listed phone number is (617) 953-9329.

What is Leonardo Sirulnik's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

When was this NPI record last updated?

The NPPES record for Leonardo Sirulnik 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 26 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.