Individual provider Active NPI

Loren Weber Kousourou, DO

  • Geriatric Medicine (Internal Medicine) Physician
  • Indianapolis, IN
National Provider Identifier
1427548742
Registry record updated Sep 3, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Geriatric Medicine (Internal Medicine) PhysicianTaxonomy code 207RG0300X
License
02006866A Issued in IN
Practice address
1500 N Ritter Ave
Indianapolis, IN 46219-3027
Phone
(317) 355-9290
NPI assigned
May 11, 2018
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 3, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 02006866A IN
Geriatric Medicine (Internal Medicine) Physician 207RG0300X 02006866A IN Primary
Internal Medicine Physician 207R00000X 68590 CT

Addresses

Primary practice location

1500 N Ritter Ave
Indianapolis, IN 46219-3027

Mailing address

8424 Naab Rd Ste 1L
Indianapolis, IN 46260-1954

Other practice location 1

1000 Oakland Dr
Kalamazoo, MI 49008-1282
Phone (269) 337-6300

Other practice location 2

20 York St
New Haven, CT 06510-3220
Phone (203) 688-4242

Other practice location 3

8424 Naab Rd Ste 1L
Indianapolis, IN 46260-1954
Phone (317) 338-7780

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address loren.weber.1@7598.direct.athenahealth.com St. Vincent Medical Group, Inc.

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IN
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
I20220729000630 IN Practitioner - Internal Medicine 3375808744 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Michigan State University College of Osteopathic Medicine, 2018
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Community Physicians of Indiana IncGroup PAC ID 1759416662, 1,569 clinicians

Practice addresses (Care Compare)

1500 N Ritter Ave
Community Hospital East
Indianapolis, IN 46219-3027
Phone (317) 355-1411

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
68590CTMDInternal Medicine Physician
02006866AINMDGeriatric Medicine (Internal Medicine) Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Community Physicians of Indiana Inc Internal Medicine CurrentSince Oct 1, 2025 Accepting new patients
Community Physicians of Indiana Inc CurrentSince Oct 1, 2025 Accepting new patients

Locations

5819 Reliable Pkwy
Chicago, IL 60686

1500 N Ritter Ave
Indianapolis, IN 46219
Phone (317) 355-5041

7120 Clearvista Dr
Ste 4000
Indianapolis, IN 46256
Phone (317) 621-7444

Interoperability endpoints

  • Direct secure messaging: lweber515509@direct.ynhh.org
  • Direct secure messaging: loren.weber.1@7598.direct.athenahealth.com
  • Direct secure messaging: lkousourou654356@ecommunitydirect.com

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 4

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": "1525996800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1756857600000",
    "number": "1427548742",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8424 NAAB RD STE 1L",
            "city": "INDIANAPOLIS",
            "state": "IN",
            "postal_code": "462601954"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1500 N RITTER AVE",
            "city": "INDIANAPOLIS",
            "state": "IN",
            "postal_code": "462193027",
            "telephone_number": "317-355-9290"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1000 Oakland Dr",
            "address_purpose": "LOCATION",
            "city": "Kalamazoo",
            "state": "MI",
            "postal_code": "490081282",
            "country_code": "US",
            "telephone_number": "269-337-6300",
            "fax_number": "269-337-6222",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "20 York St",
            "address_purpose": "LOCATION",
            "city": "New Haven",
            "state": "CT",
            "postal_code": "065103220",
            "country_code": "US",
            "telephone_number": "203-688-4242",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "8424 Naab Rd Ste 1L",
            "address_purpose": "LOCATION",
            "city": "Indianapolis",
            "state": "IN",
            "postal_code": "462601954",
            "country_code": "US",
            "telephone_number": "317-338-7780",
            "fax_number": "317-338-7907",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KOUSOUROU",
        "first_name": "LOREN",
        "middle_name": "WEBER",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-05-11",
        "last_updated": "2025-09-03",
        "certification_date": "2025-09-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IN",
            "license": "02006866A",
            "primary": false
        },
        {
            "code": "207RG0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Geriatric Medicine",
            "state": "IN",
            "license": "02006866A",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CT",
            "license": "68590",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "loren.weber.1@7598.direct.athenahealth.com",
            "affiliation": "Y",
            "affiliationName": "St. Vincent Medical Group, Inc.",
            "address_1": "8424 Naab Rd Ste 1L",
            "city": "Indianapolis",
            "state": "IN",
            "country_code": "US",
            "postal_code": "462601954",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Indianapolis, IN

Sources for this page

Verify at the official NPI Registry.