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DR. ROBERT J. SEIDEN MD
NPI 1356435606
Internal Medicine in Hewlett, NY

Active since October 03, 2006
286 E ROCKAWAY RD, HEWLETT, NY 11557(516) 569-3838(516) 569-3839 Get Directions Write a Review

NPPES record last updated: September 8, 2008. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Robert J. Seiden Md NPPES

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

DR. ROBERT J. SEIDEN MD (NPI 1356435606) is an individual internal medicine provider in Hewlett, New York, licensed in New York (136325) and active in the NPI registry since October 2006.

NPPES Registry Identity

NPI1356435606
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. ROBERT J. SEIDENCredential: MD
Location Address286 E ROCKAWAY RDHewlett, NY 11557-2753
Mailing Address286 E Rockaway RdHewlett, NY 11557-2753 · (516) 569-3838 · Fax (516) 569-3839
Phone(516) 569-3838
Fax(516) 569-3839
Sole ProprietorYes
Enumeration DateOctober 3, 2006
Last NPPES UpdateSeptember 8, 2008
✔ NPI 1356435606 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NY · 136325
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
286 E ROCKAWAY RD, Hewlett, NY 11557
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Other Identifiers 3

Medicare UPINC11878NY
Medicaid00824873NY
Medicare PIN69A831NY

Other Providers at the Same Location NPPES

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

MRS. KERRY MASTRANGELO NP-BC
Nurse Practitioner (Family)
286 E ROCKAWAY RD
HEWLETT, NY 11557
Nassau County (515) 569-3838

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 Seiden's NPI number?

The NPI number for Robert Seiden is 1356435606. It was assigned to this individual provider in the NPPES registry on October 3, 2006.

Where is Robert Seiden located?

Robert Seiden practices at 286 E Rockaway Rd, Hewlett, NY 11557. The listed phone number is (516) 569-3838.

What is Robert Seiden's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Robert Seiden was last updated on September 8, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.