Individual provider Active NPI

Amy Polonsky, MD

  • Emergency Medicine Physician
  • Baltimore, MD
National Provider Identifier
1740229111
Registry record updated Jun 1, 2010
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
D55323 Issued in MD
Practice address
900 Caton Ave
Baltimore, MD 21229-5201
Phone
(904) 805-1300
Fax
(904) 805-1302
NPI assigned
Jun 4, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 1, 2010

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X D55323 MD Primary

Addresses

Primary practice location

900 Caton Ave
Baltimore, MD 21229-5201

Mailing address

PO Box 827426
Philadelphia, PA 19182-7426
Phone (904) 805-1300

Other identifiers 2

IdentifierTypeStateIssuer
933001101MedicaidMD
60609101OtherMDBLUE CROSS

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in DC
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
I20150203001041 DC Practitioner - Pediatric MedicinePractitioner - Emergency Medicine 7416052022 Reassigns benefits to 2 organizations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Cep America LLC Emergency Medicine Current Accepting new patients
Cep America LLC Emergency Medicine CurrentSince Sep 14, 2025 Accepting new patients
Mep Health, LLC Emergency Medicine CurrentSince Dec 1, 2016 Accepting new patients
Cep America LLC Emergency Medicine CurrentSince Sep 14, 2025 Accepting new patients
Maryland Provo-I Medical Services, PC Emergency Medicine Past Accepting new patients
Caton Emergency Physicians Emergency Medicine Past Accepting new patients
Baltimore Emergency Services II, LLC Emergency Medicine Past Accepting new patients

Locations

1601 Cummins Dr
Ste D
Modesto, CA 95358
Phone (510) 851-7423

2041 Georgia Ave NW
Washington, DC 20060
Phone (202) 865-3785

2401 W Belvedere Ave
Baltimore, MD 21215

900 S Caton Ave
Baltimore, MD 21229
Phone (410) 368-3120

900 S Caton Ave
#134
Baltimore, MD 21229
Phone (410) 368-2000

9901 Medical Center Dr
Rockville, MD 20850
Phone (301) 279-6000

1500 Forest Glen Rd
Silver Spring, MD 20910
Phone (301) 754-7230

Interoperability endpoints

  • Direct secure messaging: apolonsky1143872@direct.trinity-health.org

Organizations & group practices 7

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": "1149379200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1275350400000",
    "number": "1740229111",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 827426",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191827426",
            "telephone_number": "904-805-1300",
            "fax_number": "904-805-1302"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "900 CATON AVE",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212295201",
            "telephone_number": "904-805-1300",
            "fax_number": "904-805-1302"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "POLONSKY",
        "first_name": "AMY",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-06-04",
        "last_updated": "2010-06-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "MD",
            "license": "D55323",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "933001101",
            "state": "MD"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE CROSS",
            "identifier": "60609101",
            "state": "MD"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Baltimore, MD

Sources for this page

Verify at the official NPI Registry.