MAZEN JAMIL EL-SAYED MD
NPI 1790820504
Emergency Medicine - Emergency Medical Services in Boston, MA

Active since February 20, 2007
1 BOSTON MEDICAL CTR PL, EMERGENCY DEPARTMENT, BOSTON, MA 02118(617) 638-8000 Get Directions Write a Review

NPPES record last updated: January 31, 2011. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mazen Jamil El-sayed Md NPPES

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

MAZEN JAMIL EL-SAYED MD (NPI 1790820504) is an individual emergency medical services provider in Boston, Massachusetts, licensed in Massachusetts (239542) and active in the NPI registry since February 2007.

NPPES Registry Identity

NPI1790820504
Entity TypeIndividualMale
Primary Taxonomy207PE0004X
Provider Legal NameMAZEN JAMIL EL-SAYEDCredential: MD
Location Address1 BOSTON MEDICAL CTR PL, EMERGENCY DEPARTMENTBoston, MA 02118-2908
Mailing Address1 Boston Medical Ctr Pl, Emergency DepartmentBoston, MA 02118-2908 · (617) 638-8000
Sole ProprietorNo
Enumeration DateFebruary 20, 2007
Last NPPES UpdateJanuary 31, 2011
NPI 1790820504 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyEmergency Medicine · Emergency Medical ServicesAllopathic & Osteopathic Physicians
Taxonomy Code207PE0004X
License Licensed in MA · 239542
Definition
An emergency medicine physician who specializes in non-hospital based emergency medical services (e.g., disaster site, accident scene, transport vehicle, etc.) to provide pre-hospital assessment, treatment, and transport patients.
1 BOSTON MEDICAL CTR PL, Boston, MA 02118

Other Identifiers 2

Medicare PIN001101601MA
Medicaid110083543AMA

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.

Nurse Anesthetist, Certified Registered
1 BOSTON MEDICAL CTR PL
BOSTON, MA 02118
Physician Assistant
1 BOSTON MEDICAL CTR PL
BOSTON, MA 02118
Psychologist (Clinical)
1 BOSTON MEDICAL CTR PL
BOSTON, MA 02118
Nurse Practitioner (Psychiatric/Mental Health)
1 BOSTON MEDICAL CTR PL
BOSTON, MA 02118
Student in an Organized Health Care Education/Training Program
1 BOSTON MEDICAL CTR PL
BOSTON, MA 02118
Emergency Medicine
1 BOSTON MEDICAL CTR PL, DOWLING 1 SOUTH
BOSTON, MA 02118
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
1 BOSTON MEDICAL CTR PL
BOSTON, MA 02118
Nurse Practitioner
1 BOSTON MEDICAL CTR PL, DOWLING 1 SOUTH
BOSTON, MA 02118

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 Mazen El-sayed's NPI number?

The NPI number for Mazen El-sayed is 1790820504. It was assigned to this individual provider in the NPPES registry on February 20, 2007.

Where is Mazen El-sayed located?

Mazen El-sayed practices at 1 Boston Medical Ctr Pl Emergency Department, Boston, MA 02118. The listed phone number is (617) 638-8000.

What is Mazen El-sayed's specialty?

The primary specialty registered for this NPI is Emergency Medicine, specializing in Emergency Medical Services, with taxonomy code 207PE0004X.

When was this NPI record last updated?

The NPPES record for Mazen El-sayed was last updated on January 31, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.