Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Robert I. Rattiner, M.D.

Cardiovascular Disease Physician in Williston Park, NY · enumerated 2007 · practices at Robert I Rattiner MD Pllc.

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

National Provider Identifier

1881738375

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Registry record

Entity type Individual (Type 1)

Name Robert I. Rattiner

Credential M.D.

Sex Male

Practice address 99 Hillside Avenue, Suite T, Williston Park, NY, 11596

Phone (516) 498-1965

Fax (516) 504-0235

Enumeration date Feb 16, 2007

Last updated in NPPES Jun 23, 2014

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 194753 (NY) Secondary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 194753 (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
02116952	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.

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Frequently asked questions

Where does Robert Rattiner practice?

The practice location on file with NPPES is in Williston Park, NY. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Robert Rattiner?

The National Provider Identifier (NPI) for Robert Rattiner is 1881738375, a Type 1 (individual) record in the CMS NPPES registry.

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Robert I Rattiner MD Pllc Cardiovascular Disease Physician · Williston Park, NY NPI 1962719310

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-06-23.