NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Donnie Simcha Isseroff, M.D.

Anesthesiology Physician in Manhasset, NY · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1245424613

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Registry record

Entity type Individual (Type 1)
Name Donnie Simcha Isseroff
Credential M.D.
Sex Male
Practice address 300 Community Dr, Dept of Anesthesiology, Manhasset, NY, 11030
Enumeration date Aug 29, 2007
Last updated in NPPES Jun 7, 2011

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 253157 (NY) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is NPI 1245424613 active?
Yes, as of the latest NPPES snapshot, NPI 1245424613 is active (record last updated 2011-06-07).
How do I verify Donnie Isseroff's NPI record?
Cross-check NPI 1245424613 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-06-07.