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MAHMOUD MOUSSA HASSANEIN MD
NPI 1801812094
Pediatrics - Pediatric Infectious Diseases in Flushing, NY

Active since July 14, 2006PECOS Enrolled
5645 MAIN ST, NEW YORK HOSPITAL OF QUEENS, DEPARTMENT OF PEDIATRICS., FLUSHING, NY 11355(718) 670-1033(718) 240-6602 Get Directions Write a Review

NPPES record last updated: April 21, 2009. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mahmoud Moussa Hassanein Md NPPES

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

MAHMOUD MOUSSA HASSANEIN MD (NPI 1801812094) is an individual pediatric infectious diseases provider in Flushing, New York, licensed in New York (200336) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1801812094
Entity TypeIndividualMale
Primary Taxonomy2080P0208X
Provider Legal NameMAHMOUD MOUSSA HASSANEINCredential: MD
Location Address5645 MAIN ST, NEW YORK HOSPITAL OF QUEENS, DEPARTMENT OF PEDIATRICS.Flushing, NY 11355-5045
Mailing Address224 95th StBrooklyn, NY 11209-6810 · (718) 748-4630 · Fax (718) 240-6602
Phone(718) 670-1033
Fax(718) 240-6602
Sole ProprietorYes
Enumeration DateJuly 14, 2006
Last NPPES UpdateApril 21, 2009
✔ NPI 1801812094 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric Infectious DiseasesAllopathic & Osteopathic Physicians
Taxonomy Code2080P0208X
License✔ Licensed in NY · 200336
Definition
A pediatrician trained to care for children in the diagnosis, treatment and prevention of infectious diseases. This specialist can apply specific knowledge to affect a better outcome for pediatric infections with complicated courses, underlying diseases that predispose to unusual or severe infections, unclear diagnoses, uncommon diseases and complex or investigational treatments.
5645 MAIN ST, Flushing, NY 11355
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Other Identifiers 1

Medicare UPINH53882NY

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mahmoud Moussa Hassanein Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Mahmoud Hassanein reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

New York Queens Medicine And Surgery, P.C.
Same address
Multi-Specialty
5645 MAIN ST
Flushing, NY 11355
  • Reassigned Medicare billing, New York enrollment
  • 645 clinicians in this Medicare group
NPI 1740792233 (718) 661-8706
Interfaith Professional Physician Services, P.C.
7.6 mi
Surgery
1545 ATLANTIC AVENUE, FACULTY PRACTICE
Brooklyn, NY 11213
  • Reassigned Medicare billing, New York enrollment
  • Medicare enrollment name: Interfaith Professional Physician Services PC
  • 635 clinicians in this Medicare group
NPI 1457643991 (718) 240-8352
Brookdale Hospital Medical Center
8.8 mi
General Acute Care Hospital
1 BROOKDALE PLZ STE 666
Brooklyn, NY 11212
  • Reassigned Medicare billing, New York enrollment
  • 782 clinicians in this Medicare group
NPI 1720028772 (718) 240-8352

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

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.

ANA M GHELECHKHANI PA
Physician Assistant (Medical)
5645 MAIN ST
FLUSHING, NY 11355
Queens County (718) 670-2608
PEDRO XAVIER PALACIOS PA-C
Physician Assistant (Medical)
5645 MAIN ST
FLUSHING, NY 11355
Queens County (718) 670-1000
DR. OSCAR ROLDAN
Anesthesiology
5645 MAIN ST
FLUSHING, NY 11355
Queens County (646) 962-9930
ALEXIS TORRES RODRIGUEZ
Internal Medicine (Infectious Disease)
5645 MAIN ST
FLUSHING, NY 11355
Queens County (718) 670-1507
DR. BRENT HOCHSTEIN DO
Student in an Organized Health Care Education/Training Program
5645 MAIN ST
FLUSHING, NY 11355
Queens County (718) 670-2000
DR. PRINCIE NANDINI ROY MD
Student in an Organized Health Care Education/Training Program
5645 MAIN ST
FLUSHING, NY 11355
Queens County (718) 670-2000
ERIC CHROSTOWSKI
Student in an Organized Health Care Education/Training Program
5645 MAIN ST
FLUSHING, NY 11355
Queens County (718) 670-2000
PETER JAESUNG JO
Nurse Practitioner (Family)
5645 MAIN ST
FLUSHING, NY 11355
Queens County (917) 340-4637

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 Mahmoud Hassanein's NPI number?

The NPI number for Mahmoud Hassanein is 1801812094. It was assigned to this individual provider in the NPPES registry on July 14, 2006.

Where is Mahmoud Hassanein located?

Mahmoud Hassanein practices at 5645 Main St New York Hospital Of Queens, Department Of Pediatrics., Flushing, NY 11355. The listed phone number is (718) 670-1033.

What is Mahmoud Hassanein's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Infectious Diseases, with taxonomy code 2080P0208X.

Is Mahmoud Hassanein enrolled in Medicare?

Yes. Mahmoud Hassanein is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Mahmoud Hassanein's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mahmoud Hassanein reassigns Medicare benefits to 3 organizations: New York Queens Medicine And Surgery, P.C. (Flushing, NY), Interfaith Professional Physician Services, P.C. (Brooklyn, NY) and Brookdale Hospital Medical Center (Brooklyn, NY). Each 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 Mahmoud Hassanein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mahmoud Hassanein was last updated on April 21, 2009. 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.