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

ROBERT MATALON, M.D.
NPI 1790991057
Internal Medicine - Nephrology in New York, NY

Active since May 15, 2007
323 E 34TH ST FL 2, NEW YORK, NY 10016(212) 889-0770 Get Directions Write a Review

NPPES record last updated: September 19, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Sep 19, 2026, Aug 22, 2020 (2 updates tracked since 2020).

About Robert Matalon, M.d. NPPES

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

ROBERT MATALON, M.D. (NPI 1790991057) is a healthcare organization registered as a nephrology in New York, New York and active in the NPI registry since May 2007. The organization lists Robert Matalon, Physician, as its authorized official.

NPPES Registry Identity

NPI1790991057
Entity TypeOrganization
Primary Taxonomy207RN0300X
Legal Business NameROBERT MATALON, M.D.
Location Address323 E 34TH ST FL 2New York, NY 10016-4974
Mailing Address530 1st Ave, Suite 4aNew York, NY 10016-6402 · (212) 263-7239
Phone(212) 889-0770
Organization SubpartNo
Authorized OfficialRobert MatalonPhysician · (212) 263-7239
Enumeration DateMay 15, 2007
Last NPPES UpdateSeptember 19, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 19, 2026
✔ NPI 1790991057 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 · 094662
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.
323 E 34TH ST FL 2, New York, NY 10016
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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

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ALBERT MATALON M.D.
Internal Medicine (Nephrology)
323 E 34TH ST FL 2
NEW YORK, NY 10016
New York County (212) 263-7239
ROBERT MATALON M.D.
Internal Medicine (Nephrology)
323 E 34TH ST FL 2
NEW YORK, NY 10016
New York County (212) 263-7239
DANIEL MATALON MD
Internal Medicine (Nephrology)
323 E 34TH ST FL 2
NEW YORK, NY 10016
New York County (212) 263-5654

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 Matalon, M.D.'s NPI number?

The NPI number for Robert Matalon, M.D. is 1790991057. It was assigned to this organization in the NPPES registry on May 15, 2007.

Where is Robert Matalon, M.D. located?

Robert Matalon, M.D. is located at 323 E 34th St Fl 2, New York, NY 10016. The listed phone number is (212) 889-0770.

What is Robert Matalon, M.D.'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 Matalon, M.D. was last updated on September 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.