NPIMap

Organization Active NPI

CS Pacs 3 Il, S.C.

  • Hospitalist Physician
  • Park Ridge, IL
National Provider Identifier
1598577124
Registry record updated Jun 16, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
Legal business name
CS PACS 3 IL, S.C.
Practice address
1001 N Greenwood Ave
Park Ridge, IL 60068-2054
Phone
(847) 692-5600
NPI assigned
Jan 21, 2025
Last updated
Jun 16, 2025By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Jun 16, 2025

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

Authorized official

Name
Dr. Elmer Choi, MD
Title
Owner/President/Director
Phone
(865) 693-1000

Specialties & licenses 5

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207R00000X
General Practice PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 208D00000X
Hospitalist PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 208M00000X Primary
Physician AssistantGroup: 193200000X MULTI-SPECIALTY GROUP 363A00000X
Nurse PractitionerGroup: 193200000X MULTI-SPECIALTY GROUP 363L00000X

Addresses

Primary practice location

1001 N Greenwood Ave
Park Ridge, IL 60068-2054

Mailing address

1643 NW 136TH Avenue
BLDG H, Suite 100
Sunrise, FL 33323-2857
Phone (865) 500-1325

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20250225002678 IL Part B Supplier - Clinic/Group Practice 3577083278 Receives reassigned benefits from 43 practitioners

National Provider Directory

National Provider Directory

Locations

4437 S Cicero Ave
Chicago, IL 60632
Phone (773) 284-1421

4815 S Western Blvd
Chicago, IL 60609
Phone (312) 380-1379

940 Maple Rd
Homewood, IL 60430
Phone (708) 799-0244

1006 N Lowden Rd
Mount Carroll, IL 61053
Phone (815) 244-7715

Practitioners & affiliated clinicians

Practitioners 43

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

View all 43

NPI Registry JSON

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

{
    "created_epoch": "1737417600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1750032000000",
    "number": "1598577124",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1643 NW 136TH AVENUE",
            "address_2": "BLDG H, SUITE 100",
            "city": "SUNRISE",
            "state": "FL",
            "postal_code": "333232857",
            "telephone_number": "865-500-1325"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1001 N GREENWOOD AVE",
            "city": "PARK RIDGE",
            "state": "IL",
            "postal_code": "600682054",
            "telephone_number": "847-692-5600"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "CS PACS 3 IL, S.C.",
        "organizational_subpart": "NO",
        "enumeration_date": "2025-01-21",
        "last_updated": "2025-06-16",
        "certification_date": "2025-06-16",
        "status": "A",
        "authorized_official_last_name": "CHOI",
        "authorized_official_first_name": "ELMER",
        "authorized_official_title_or_position": "OWNER/PRESIDENT/DIRECTOR",
        "authorized_official_telephone_number": "865-693-1000",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "208D00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "General Practice",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Hospitalist",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Physician Assistant",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Nurse Practitioner",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Park Ridge, IL

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 16, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.