Individual provider Active NPI

Il Y Yoo, M.D.

  • Emergency Medicine Physician
  • Chicago, IL
National Provider Identifier
1104826254
Registry record updated Jul 8, 2007
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
036-052573 Issued in IL
Practice address
1501 S California Ave
Chicago, IL 60608-1732
Phone
(773) 257-6843
NPI assigned
Jul 29, 2005
Last updated
Jul 8, 2007By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 8, 2007

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 036-052573 IL Primary

Addresses

Primary practice location

1501 S California Ave
Chicago, IL 60608-1732

Mailing address

415 E North Water St
#807
Chicago, IL 60611-5594
Phone (312) 527-4434

Other identifiers 1

IdentifierTypeStateIssuer
036-052573-5MedicaidIL

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
036-052573ILMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Unimed, LTD Past Accepting new patients
Crandon Emergency Physicians LLC Emergency Medicine PastSince Sep 14, 2025 Accepting new patients
New Era Medical Services, LLC Emergency Medicine Past Accepting new patients
Emergency Room Care Providers, S.C. Emergency Medicine PastSince Jul 25, 2019 Accepting new patients
Midway Emergency Physicians, LLC Emergency Medicine Past Accepting new patients
City of Hope Medical Group of Illinois PLLC Past Accepting new patients
Emergency Care Physician Services Emergency Medicine Past Accepting new patients
Emergency Department Associates, P.C. Emergency Medicine Past Accepting new patients
Decatur Emergency Medical Services II S C Past Accepting new patients

Organizations & group practices 9

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": "1122595200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1183852800000",
    "number": "1104826254",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "415 E NORTH WATER ST",
            "address_2": "#807",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606115594",
            "telephone_number": "312-527-4434",
            "fax_number": "312-527-4434"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1501 S CALIFORNIA AVE",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606081732",
            "telephone_number": "773-257-6843"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "YOO",
        "first_name": "IL",
        "middle_name": "Y",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2005-07-29",
        "last_updated": "2007-07-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "IL",
            "license": "036-052573",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "036-052573-5",
            "state": "IL"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Chicago, IL

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 8, 2007; 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.