Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ellen Haig, M.D.

Gastroenterology Physician in Rockville Centre, NY · enumerated 2006.

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

National Provider Identifier

1053337311

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Registry record

Entity type Individual (Type 1)

Name Dr. Ellen Haig

Credential M.D.

Sex Female

Practice address 2 Lincoln Ave, Suite 201, Rockville Centre, NY, 11570

Phone (516) 536-0600

Fax (516) 536-0694

Enumeration date Jul 13, 2006

Last updated in NPPES Apr 26, 2024

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 176974-1 (NY) Secondary

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 176974-1 (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
AP512	Other	NY	OXFORD HEALTH PLANS
110106812	Other	NY	RAILROAD MEDICARE
1478104	Other	NY	UNITED HEALTHCARE
03G512	Other	NY	EMPIRE 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.

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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 Ellen Haig?

Ellen Haig is registered in NPPES with the primary taxonomy of Gastroenterology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-26.