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ROBERT I RATTINER MD PLLC
NPI 1962719310
Internal Medicine - Cardiovascular Disease in Williston Park, NY

Active since September 07, 2010
99 HILLSIDE AVENUE, SUITE T, WILLISTON PARK, NY 11596(516) 498-1965(516) 504-0235 Get Directions Write a Review

NPPES record last updated: June 23, 2014. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Robert I Rattiner Md Pllc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ROBERT I RATTINER MD PLLC (NPI 1962719310) is a healthcare organization registered as a cardiovascular disease in Williston Park, New York and active in the NPI registry since September 2010. The organization lists Robert I Rattiner, President & Ceo, as its authorized official.

NPPES Registry Identity

NPI1962719310
Entity TypeOrganization
Primary Taxonomy207RC0000X
Legal Business NameROBERT I RATTINER MD PLLC
Location Address99 HILLSIDE AVENUE, SUITE TWilliston Park, NY 11596
Mailing Address99 Hillside Avenue, Suite TWilliston Park, NY 11596 · (516) 498-1965 · Fax (516) 504-0235
Phone(516) 498-1965
Fax(516) 504-0235
Organization SubpartNo
Authorized OfficialRobert I RattinerPresident & Ceo · (516) 498-1965
Enumeration DateSeptember 7, 2010
Last NPPES UpdateJune 23, 2014
✔ NPI 1962719310 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License✔ Licensed in NY · 194753
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
99 HILLSIDE AVENUE, Williston Park, NY 11596
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Other Identifiers 3

Medicare PINA100050430NY
Medicare UPING70913NY
Medicaid02116952NY

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Robert I Rattiner Md Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by December 31, 2026

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateNew YorkEnrollment IDO20110629000132Non-DME Part B · Clinic/Group PracticeDue dateDecember 31, 2026
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Robert I Rattiner MD PLLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Robert Rattiner, M.D.
Cardiovascular Disease (Cardiology)
NPI 1881738375
99 HILLSIDE AVENUE SUITE T
Williston Park, NY 11596
(516) 498-1965
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Robert I Rattiner MD PLLC's NPI number?

The NPI number for Robert I Rattiner MD PLLC is 1962719310. It was assigned to this organization in the NPPES registry on September 7, 2010.

Where is Robert I Rattiner MD PLLC located?

Robert I Rattiner MD PLLC is located at 99 Hillside Avenue Suite T, Williston Park, NY 11596. The listed phone number is (516) 498-1965.

What is Robert I Rattiner MD PLLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Robert I Rattiner MD PLLC enrolled in Medicare?

Yes. Robert I Rattiner MD PLLC is registered in the Medicare PECOS enrollment system.

When is Robert I Rattiner MD PLLC's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (New York, Clinic/Group Practice) is due for revalidation by December 31, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Robert I Rattiner MD PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Cardiovascular Disease (Cardiology)) reassigns their Medicare billing to Robert I Rattiner MD PLLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Robert I Rattiner MD PLLC was last updated on June 23, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.