Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mark R Kahn MD Pllc

Cardiovascular Disease Physician in Syosset, NY · enumerated 2017 · authorized official Mark Kahn, Owner.

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

National Provider Identifier

1346756665

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Registry record

Entity type Organization (Type 2)

Legal business name Mark R Kahn MD Pllc

Practice address 175 Jericho Tpke Ste 204, Syosset, NY, 11791

Phone (516) 496-4141

Fax (516) 496-4393

Enumeration date Dec 21, 2017

Last updated in NPPES Dec 21, 2017

Taxonomy & classification

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 265075 (NY) Primary

Authorized official

Name Mark Kahn

Title Owner

Phone (516) 496-4141

Other identifiers

Identifier	Type	State	Issuer
265075	Other	NY	LICENSE

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.

Read the full guide → Validate an NPI →

Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2017-12-21. Verify at npiregistry.cms.hhs.gov.

Where is Mark R Kahn MD Pllc located?

The practice location on file with NPPES is in Syosset, NY.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-12-21.