Individual provider Active NPI

Alla Zilbering, MD

  • Internal Medicine Physician
  • Drexel Hill, PA
National Provider Identifier
1063643468
Registry record updated Feb 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
MD442338 Issued in PA
Practice address
5037 Township Line Rd
Drexel Hill, PA 19026-4821
Phone
(610) 884-1212
Fax
(610) 884-1212
NPI assigned
Aug 3, 2009
Last updated
Feb 13, 2026By the provider in NPPES
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Feb 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X MD442338 PA Primary

Addresses

Primary practice location

5037 Township Line Rd
Drexel Hill, PA 19026-4821

Mailing address

1749 Hamilton Dr
Phoenixville, PA 19460-4625
Phone (610) 884-1212

Other names 1

  • Alla Grinblat Former name

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
MD442338PAMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Az Medical Director PLLC Single Specialty CurrentSince Dec 21, 2025 Accepting new patients
Cogent Healthcare of Pennsylvania, Inc. Single Specialty Past Accepting new patients

Organizations & group practices 2

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

NPI Registry JSON

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

{
    "created_epoch": "1249257600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770940800000",
    "number": "1063643468",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1749 HAMILTON DR",
            "city": "PHOENIXVILLE",
            "state": "PA",
            "postal_code": "194604625",
            "telephone_number": "610-884-1212",
            "fax_number": "610-884-1212"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5037 TOWNSHIP LINE RD",
            "city": "DREXEL HILL",
            "state": "PA",
            "postal_code": "190264821",
            "telephone_number": "610-884-1212",
            "fax_number": "610-884-1212"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ZILBERING",
        "first_name": "ALLA",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2009-08-03",
        "last_updated": "2026-02-13",
        "certification_date": "2026-02-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "PA",
            "license": "MD442338",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "ALLA",
            "last_name": "GRINBLAT",
            "credential": "MD",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Drexel Hill, PA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 13, 2026; 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.