Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. ROBERT FELDMAN SLIFKIN M.D.
NPI 1366491904
Internal Medicine - Nephrology in Oyster Bay, NY

Q: What is Robert Slifkin's NPI number?

The NPI number for Robert Slifkin is 1366491904. It was assigned to this individual provider in the NPPES registry on May 10, 2006.

Q: What is Robert Slifkin's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Q: When was this NPI record last updated?

The NPPES record for Robert Slifkin was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 33 days 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.

Active since May 10, 2006

1234 THE KNL, OYSTER BAY, NY 11771(516) 626-8947(516) 626-0496 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Dr. Robert Feldman Slifkin M.d. NPPES

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

DR. ROBERT FELDMAN SLIFKIN M.D. (NPI 1366491904) is an individual nephrology provider in Oyster Bay, New York, licensed in New York (110781) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1366491904

Entity TypeIndividualMale

Primary Taxonomy207RN0300X

Provider Legal NameDR. ROBERT FELDMAN SLIFKINCredential: M.D.

Location Address1234 THE KNLOyster Bay, NY 11771-4400

Mailing Address1234 The KnlOyster Bay, NY 11771-4400 · (516) 626-8947 · Fax (516) 626-0496

Phone(516) 626-8947

Fax(516) 626-0496

Sole ProprietorNo

Enumeration DateMay 10, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1366491904 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

License✔ Licensed in NY · 110781

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

1234 THE KNL, Oyster Bay, NY 11771

Open in Google Maps ↗

Other Identifiers 1

Medicaid00198150NY

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 Slifkin's NPI number?

The NPI number for Robert Slifkin is 1366491904. It was assigned to this individual provider in the NPPES registry on May 10, 2006.

Where is Robert Slifkin located?

Robert Slifkin practices at 1234 The Knl, Oyster Bay, NY 11771. The listed phone number is (516) 626-8947.

What is Robert Slifkin's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

When was this NPI record last updated?

The NPPES record for Robert Slifkin was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 33 days 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.