Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Jeffrey Posen II, M.D.
Specialist in Bethpage, NY · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1992778971
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Registry record
Entity type Individual (Type 1)
Name Jeffrey Posen II
Credential M.D.
Sex Male
Practice address 4295 Hempstead Tpke, New Island Hospital, Bethpage, NY, 11714
Phone (516) 520-2295
Fax (516) 719-3935
Enumeration date Feb 9, 2006
Last updated in NPPES Dec 12, 2008
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 55R511 | Other | NY | BLUE CROSS PROVIDER# |
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.
Frequently asked questions
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Jeffrey Posen?
Jeffrey Posen is registered in NPPES with the primary taxonomy of Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Karen Cox Anesthesiology Physician · Bethpage, NY NPI 1871596221 Brian Cook Anesthesiology Physician · Bethpage, NY NPI 1972509990 Wsnchs North, Inc. General Acute Care Hospital · Bethpage, NY NPI 1013998426 Brendan Keys Nurse Practitioner · Bethpage, NY NPI 1043296833 Frances Brady Nurse Practitioner · Bethpage, NY NPI 1700863032 Howard Sussman Surgery Physician · Bethpage, NY NPI 1518946300 Daniel Zaldivar Surgical Physician Assistant · Bethpage, NY NPI 1386672194 Island Medical Physicians, PC Emergency Medicine Physician · Bethpage, NY NPI 1538198197
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-12-12.