NPIMap

Individual provider Active NPI

Kenneth Lee Choi, MD

  • Nephrology Physician
  • Merrillville, IN
National Provider Identifier
1619098571
Registry record updated Apr 29, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nephrology PhysicianTaxonomy code 207RN0300X
License
01063644A Issued in IN
Practice address
90 W 86TH Ave
Nani, LTD
Merrillville, IN 46410-7086
Phone
(219) 791-1555
Fax
(219) 791-1560
NPI assigned
Apr 2, 2007
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 29, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Nephrology Physician 207RN0300X 036111704 IL
Nephrology Physician 207RN0300X 01063644A IN Primary

Addresses

Primary practice location

90 W 86TH Ave
Nani, LTD
Merrillville, IN 46410-7086

Mailing address

120 W 22ND St Ste 200
Oak Brook, IL 60523-1563
Phone (630) 573-5000

Other identifiers 4

IdentifierTypeStateIssuer
000000536207OtherINANTHEM BCBS
200876580MedicaidIN
100082060OtherINMEDICAID GROUP
628850OtherINMEDICARE GROUP

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address credentialing@nephdocs.com Direct

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IN, IL2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20071018000217 IN Practitioner - NephrologyPractitioner - Internal Medicine 0446346753 Reassigns benefits to 1 organization
I20170320002311 IL Practitioner - Nephrology 0446346753 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Nephrology
Education
Northwestern University Feinberg Medical School, 2001
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Nephrology Associates of Northern Indiana PCGroup PAC ID 8921033440, 64 clinicians

Practice addresses (Care Compare)

90 W 86TH Ave
Nephrology Associates of Northern Indiana P
Merrillville, IN 46410-7086
Phone (219) 791-1555

Hospital & facility affiliations

  • FMC - Merrillville Dialysis Center Dialysis facility, Merrillville, IN, CCN 152541
  • FMC - Neomedica - Munster Dialysis facility, Munster, IN, CCN 152562
  • Community Hospital Hospital, Munster, IN, CCN 150125
  • St Catherine Hospital Inc Hospital, East Chicago, IN, CCN 150008
  • St Mary Medical Center Inc Hospital, Hobart, IN, CCN 150034
  • Franciscan Health Crown Point Hospital, Crown Point, IN, CCN 150126
  • Franciscan Health Munster Hospital, Munster, IN, CCN 150165
  • Powers Health Rehabilitation Center Inpatient rehabilitation facility, Crown Point, IN, CCN 153045

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Nephrology Associates of Northern Indiana, Inc Nephrology CurrentSince Jul 1, 2007 Accepting new patients

Locations

120 W 22nd St
Oak Brook, IL 60523

120 W 22nd St
Ste 200
Oak Brook, IL 60523
Phone (630) 575-5000

855 Madison St
Oak Park, IL 60302
Phone (708) 386-1000

569 Tyler St
Gary, IN 46402
Phone (260) 885-3300

90 W 86th Ave
Merrillville, IN 46410
Phone (219) 791-1555

Interoperability endpoints

  • Direct secure messaging: kchoi64203@direct.franciscanalliance.org
  • Direct secure messaging: kchoi41316@direct.acumenmd.com
  • FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/

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 and National Provider Directory roles.

Hospital & facility affiliations 9

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1175472000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1745884800000",
    "number": "1619098571",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "120 W 22ND ST STE 200",
            "city": "OAK BROOK",
            "state": "IL",
            "postal_code": "605231563",
            "telephone_number": "630-573-5000",
            "fax_number": "604-491-5472"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "90 W 86TH AVE",
            "address_2": "NANI, LTD",
            "city": "MERRILLVILLE",
            "state": "IN",
            "postal_code": "464107086",
            "telephone_number": "219-791-1555",
            "fax_number": "219-791-1560"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHOI",
        "first_name": "KENNETH",
        "middle_name": "LEE",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-04-02",
        "last_updated": "2025-04-29",
        "certification_date": "2025-04-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "IL",
            "license": "036111704",
            "primary": false
        },
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "IN",
            "license": "01063644A",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "ANTHEM BCBS",
            "identifier": "000000536207",
            "state": "IN"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "200876580",
            "state": "IN"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICAID GROUP",
            "identifier": "100082060",
            "state": "IN"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE GROUP",
            "identifier": "628850",
            "state": "IN"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "credentialing@nephdocs.com",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "120 W 22nd St Ste 200",
            "city": "Oak Brook",
            "state": "IL",
            "country_code": "US",
            "postal_code": "605231563",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Merrillville, IN

Sources for this page

Verify at the official NPI Registry.