Individual provider Active NPI

Susan Mezey Leib, MD

  • Pediatrics Physician
  • Philadelphia, PA
National Provider Identifier
1376515395
Registry record updated Oct 24, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatrics PhysicianTaxonomy code 208000000X
License
25MA12694000 Issued in NJ
Practice address
5501 Old York Rd
Paley 1
Philadelphia, PA 19141-3018
Phone
(215) 456-7170
Fax
(215) 456-4923
NPI assigned
Feb 3, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 24, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatrics Physician 208000000X MD439546 PA
Pediatrics Physician 208000000X 25MA12694000 NJ Primary

Addresses

Primary practice location

5501 Old York Rd
Paley 1
Philadelphia, PA 19141-3018

Mailing address

PO Box 8500-8735
Philadelphia, PA 19178-0001
Phone (215) 456-7000

Other identifiers 1

IdentifierTypeStateIssuer
001306465MedicaidCT

Other names 1

  • Susan Mezey Former name

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address susan.leib@direct.einstein.edu Direct

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in PA
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20150219000122 PA Practitioner - Pediatric Medicine 3072748607 Reassigns benefits to 1 organization

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
25MA12694000NJMDPediatrics Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Einstein Practice Plan Inc Current Accepting new patients
Einstein Practice Plan Inc CurrentSince Dec 16, 2014 Accepting new patients
Einstein Practice Plan Inc Pediatrics CurrentSince Dec 16, 2014 Accepting new patients

Locations

5501 York Rd
Ste 1
Philadelphia, PA 19141
Phone (215) 456-6500

5501 York Rd
Philadelphia, PA 19141
Phone (215) 456-7405

5501 York Rd
Ste 202
Philadelphia, PA 19141
Phone (215) 254-2630

Interoperability endpoints

  • Direct secure messaging: susan.leib@direct.einstein.edu

Organizations & group practices 3

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": "1138924800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761264000000",
    "number": "1376515395",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 8500-8735",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191780001",
            "telephone_number": "215-456-7000",
            "fax_number": "215-254-3289"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5501 OLD YORK RD",
            "address_2": "PALEY 1",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191413018",
            "telephone_number": "215-456-7170",
            "fax_number": "215-456-4923"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LEIB",
        "first_name": "SUSAN",
        "middle_name": "MEZEY",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-02-03",
        "last_updated": "2025-10-24",
        "certification_date": "2025-10-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "PA",
            "license": "MD439546",
            "primary": false
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "NJ",
            "license": "25MA12694000",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "001306465",
            "state": "CT"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "susan.leib@direct.einstein.edu",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "5501 Old York Rd",
            "city": "Philadelphia",
            "state": "PA",
            "country_code": "US",
            "postal_code": "191413018",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "SUSAN",
            "last_name": "MEZEY",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Philadelphia, PA

Sources for this page

Verify at the official NPI Registry.