Individual provider Active NPI

Ludovicus Dekeyser, MD

  • Endocrinology, Diabetes & Metabolism Physician
  • Michigan City, IN
National Provider Identifier
1972598787
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X
License
01043064A Issued in IN
Practice address
1501 Wabash
Suite #400B
Michigan City, IN 46360
Phone
(219) 877-1298
Fax
(219) 877-1016
NPI assigned
Sep 19, 2005
Last updated
Jul 13, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Endocrinology, Diabetes & Metabolism Physician 207RE0101X 01043064A IN Primary

Addresses

Primary practice location

1501 Wabash
Suite #400B
Michigan City, IN 46360

Mailing address

PO Box 2000
Dyer, IN 46311-0900
Phone (219) 864-2107

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
01043064AINMDEndocrinology, Diabetes & Metabolism Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Healthpartners Medical Group, LLC Past Accepting new patients
Community Care Network Inc Past Accepting new patients
Lakeshore Anesthesia, P.C. Past Accepting new patients
Franciscan Physician Network Past Accepting new patients

Organizations & group practices 4

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": "1127088000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1972598787",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 2000",
            "city": "DYER",
            "state": "IN",
            "postal_code": "463110900",
            "telephone_number": "219-864-2107",
            "fax_number": "219-864-2649"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1501 WABASH",
            "address_2": "SUITE #400B",
            "city": "MICHIGAN CITY",
            "state": "IN",
            "postal_code": "46360",
            "telephone_number": "219-877-1298",
            "fax_number": "219-877-1016"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DEKEYSER",
        "first_name": "LUDOVICUS",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-09-19",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "IN",
            "license": "01043064A",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Michigan City, IN

Sources for this page

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