Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Leonard Rosmarin, MD

Dermatology Physician in Whitestone, NY · enumerated 2006.

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

National Provider Identifier

1225144694

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Registry record

Entity type Individual (Type 1)

Name Dr. Leonard Rosmarin

Credential MD

Sex Male

Practice address 18-15 Francis Lewis Blvd, Whitestone, NY, 11357

Phone (718) 746-5463

Fax (718) 746-1967

Enumeration date Aug 21, 2006

Last updated in NPPES Sep 5, 2008

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 131183 (NY) Primary

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
4206044	Other	-	AETNA
26003P	Other	-	HIP
DS279	Other	-	OXFORD
0022249	Other	-	GHI
4C8363	Other	-	HEALTHNET
00437861	Medicaid	NY	-
160798	Other	-	ELDERPLAN
39846	Other	-	VYTRAHEALTH
76724	Other	-	US HEALTHCARE
0439789017	Other	-	CIGNA
26A361	Other	-	BCBS

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 do I verify Leonard Rosmarin's NPI record?

Cross-check NPI 1225144694 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1225144694 active?

Yes, as of the latest NPPES snapshot, NPI 1225144694 is active (record last updated 2008-09-05).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-09-05.