Individual provider Active NPI

Mazen Jamil El-Sayed, MD

  • Emergency Medical Services (Emergency Medicine) Physician
  • Boston, MA
National Provider Identifier
1790820504
Registry record updated Jan 31, 2011
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medical Services (Emergency Medicine) PhysicianTaxonomy code 207PE0004X
License
239542 Issued in MA
Practice address
1 Boston Medical Ctr PL
Emergency Department
Boston, MA 02118-2908
Phone
(617) 638-8000
NPI assigned
Feb 20, 2007
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 31, 2011

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X
Emergency Medical Services (Emergency Medicine) Physician 207PE0004X 239542 MA Primary

Addresses

Primary practice location

1 Boston Medical Ctr PL
Emergency Department
Boston, MA 02118-2908

Mailing address

1 Boston Medical Ctr PL
Emergency Department
Boston, MA 02118-2908
Phone (617) 638-8000

Other identifiers 1

IdentifierTypeStateIssuer
110083543AMedicaidMA

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
239542MAMDEmergency Medical Services (Emergency Medicine) Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Boston Emergency Physician Foundation, Inc. Past Accepting new patients

Organizations & group practices 1

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1171929600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1296432000000",
    "number": "1790820504",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1 BOSTON MEDICAL CTR PL",
            "address_2": "EMERGENCY DEPARTMENT",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021182908",
            "telephone_number": "617-638-8000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 BOSTON MEDICAL CTR PL",
            "address_2": "EMERGENCY DEPARTMENT",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021182908",
            "telephone_number": "617-638-8000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "EL-SAYED",
        "first_name": "MAZEN",
        "middle_name": "JAMIL",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-02-20",
        "last_updated": "2011-01-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207PE0004X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine, Emergency Medical Services",
            "state": "MA",
            "license": "239542",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "110083543A",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 31, 2011; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.