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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

NADER YOUSSEF MD
NPI 1275507436
Pediatrics - Pediatric Gastroenterology in Morristown, NJ

Active since February 15, 2006
100 MADISON AVE, MORRISTOWN, NJ 07960(973) 971-5595 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Nader Youssef Md NPPES

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

NADER YOUSSEF MD (NPI 1275507436) is an individual pediatric gastroenterology provider in Morristown, New Jersey, licensed in New Jersey (25MA07410000) and active in the NPI registry since February 2006.

NPPES Registry Identity

NPI1275507436
Entity TypeIndividualMale
Primary Taxonomy2080P0206X
Provider Legal NameNADER YOUSSEFCredential: MD
Location Address100 MADISON AVEMorristown, NJ 07960-6136
Mailing AddressPo Box 23831Newark, NJ 07189-0001 · (973) 971-5595
Phone(973) 971-5595
Sole ProprietorNo
Enumeration DateFebruary 15, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1275507436 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0206X
License✔ Licensed in NJ · 25MA07410000
Definition
A pediatrician who specializes in the diagnosis and treatment of diseases of the digestive systems of infants, children and adolescents. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using lighted scopes to see internal organs.
100 MADISON AVE, Morristown, NJ 07960
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Other Providers at the Same Location NPPES 20

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

MELISSA LOPES M.D
Anesthesiology
100 MADISON AVE
MORRISTOWN, NJ 07960
Morris County (201) 943-5831
MORRISTOWN MEMORIAL HOSPITAL
General Acute Care Hospital
100 MADISON AVE
MORRISTOWN, NJ 07960
Morris County (888) 250-9947
VINCENT MAIXNER LCSW
Social Worker (Clinical)
100 MADISON AVE
MORRISTOWN, NJ 07960
Morris County (973) 971-5000
MEGAN LYNN CATHEY NP-C
Nurse Practitioner (Adult Health)
100 MADISON AVE
MORRISTOWN, NJ 07960
Morris County (973) 971-5358
ANTHONY RIZZUTI
Nurse Anesthetist, Certified Registered
100 MADISON AVE
MORRISTOWN, NJ 07960
Morris County (800) 991-9133
OMAR MOHAMMED ABDELFATTAH MBBCH
Student in an Organized Health Care Education/Training Program
100 MADISON AVE
MORRISTOWN, NJ 07960
Morris County (973) 971-5000
ALEXANDER CASCAIS MD
Student in an Organized Health Care Education/Training Program
100 MADISON AVE
MORRISTOWN, NJ 07960
Morris County (973) 971-5000
DEVEA RANI DE MD
Student in an Organized Health Care Education/Training Program
100 MADISON AVE
MORRISTOWN, NJ 07960
Morris County (973) 971-5000

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 Nader Youssef's NPI number?

The NPI number for Nader Youssef is 1275507436. It was assigned to this individual provider in the NPPES registry on February 15, 2006.

Where is Nader Youssef located?

Nader Youssef practices at 100 Madison Ave, Morristown, NJ 07960. The listed phone number is (973) 971-5595.

What is Nader Youssef's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Gastroenterology, with taxonomy code 2080P0206X.

When was this NPI record last updated?

The NPPES record for Nader Youssef 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 23 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.