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Stephen W. Kopf, M.D., P.C.

Cardiovascular Disease Physician in Ossining, NY · enumerated 2011 · authorized official Stephen Kopf, President.

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

National Provider Identifier

1881990448

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Registry record

Entity type Organization (Type 2)
Legal business name Stephen W. Kopf, M.D., P.C.
Practice address 43 S Highland Ave, Ossining, NY, 10562
Phone (914) 941-0570
Fax (914) 941-0778
Enumeration date Jan 31, 2011
Last updated in NPPES Jan 31, 2011

Taxonomy & classification

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License NY128345 (NY) Primary

Authorized official

Name Stephen Kopf
Title President
Phone (914) 941-0570

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

What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is Stephen W. Kopf, M.D., P.C.?
Stephen W. Kopf, M.D., P.C. is registered in NPPES as a Cardiovascular Disease Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-01-31.