Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

L & Y Medical Associates P.C.

Q: What type of organization is L & Y Medical Associates P.C.?

L & Y Medical Associates P.C. is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).

Internal Medicine Physician in Huntington Station, NY · enumerated 2006 · authorized official Ellen Liang, Internal Medicine.

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

National Provider Identifier

1154406676

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Registry record

Entity type Organization (Type 2)

Legal business name L & Y Medical Associates P.C.

Practice address 33 Walt Whitman Rd, #217, Huntington Station, NY, 11746

Phone (718) 321-3262

Fax (718) 321-3263

Enumeration date Oct 25, 2006

Last updated in NPPES Oct 25, 2007

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 207115 (NY) Primary

Authorized official

Name Ellen Liang

Title Internal Medicine

Phone (718) 321-3262

Other identifiers

Identifier	Type	State	Issuer
01850100	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.

Read the full guide → Validate an NPI →

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 L & Y Medical Associates P.C.?

L & Y Medical Associates P.C. is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-25.