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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Lyall Arnold Gorenstein

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Pomona, NY · enumerated 2005.

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

National Provider Identifier

1770580565

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Registry record

Entity type Individual (Type 1)
Name Dr. Lyall Arnold Gorenstein
Sex Male
Practice address 5a Medical Park Dr, Pomona, NY, 10970
Phone (845) 362-0075
Fax (845) 362-1716
Enumeration date Jul 7, 2005
Last updated in NPPES Aug 22, 2013

Taxonomy & licenses

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License 189748 (NY) Primary

Other identifiers

Identifier Type State Issuer
01408933 Medicaid NY -

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 1770580565 active?
Yes, as of the latest NPPES snapshot, NPI 1770580565 is active (record last updated 2013-08-22).
How do I verify Lyall Gorenstein's NPI record?
Cross-check NPI 1770580565 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 2013-08-22.