NPIMap

Individual provider Active NPI

Joseph A Kowalczyk, MD

  • Internal Medicine Physician
  • Oak Lawn, IL
National Provider Identifier
1831166255
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
Practice address
4340 W 95TH St
Oak Lawn, IL 60453
Phone
(708) 636-1601
Fax
(708) 636-1825
NPI assigned
Mar 3, 2006
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
Internal Medicine Physician 207R00000X IL Primary

Addresses

Primary practice location

4340 W 95TH St
Oak Lawn, IL 60453

Mailing address

4340 W 95TH St
Oak Lawn, IL 60453
Phone (708) 636-1601

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20090415000381 IL Practitioner - Internal Medicine 0547317216 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Rush Medical College of Rush University, 1990
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Adult Primary Care Center LTDGroup PAC ID 4284781956, 5 clinicians

Practice addresses (Care Compare)

5851 W 95TH St
Suite 100
Oak Lawn, IL 60453-2415
Phone (708) 636-1601

Hospital & facility affiliations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Dr Dale S Raines & Associates LTD CurrentSince Jan 1, 2009 Accepting new patients
Aliya of Palos Park LLC PastSince Aug 1, 2023 Accepting new patients

Locations

10837 S Cicero Ave
Ste 320
Oak Lawn, IL 60453
Phone (708) 636-1601

4340 W 95th St
Oak Lawn, IL 60453
Phone (708) 425-5656

Ownership & related parties

All facility ownership & control disclosures 2

Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.

FacilityTypeRoleSince
Avantara Chicago RidgeChicago Ridge, IL, CCN 145700 Skilled nursing facility Operational/Managerial Control
Adp of the SNF		 Jun 18, 2021
Jun 18, 2021
Aliya of Palos ParkPalos Park, IL, CCN 146053 Skilled nursing facility W-2 Managing Employee Aug 1, 2023

Owned or controlled facilities with NPI records 2

Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.

Organizations & group practices 3

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.

Hospital & facility affiliations 17

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

View all 17

NPI Registry JSON

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

{
    "created_epoch": "1141344000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1831166255",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4340 W 95TH ST",
            "city": "OAK LAWN",
            "state": "IL",
            "postal_code": "60453",
            "telephone_number": "708-636-1601",
            "fax_number": "708-636-1825"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4340 W 95TH ST",
            "city": "OAK LAWN",
            "state": "IL",
            "postal_code": "60453",
            "telephone_number": "708-636-1601",
            "fax_number": "708-636-1825"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KOWALCZYK",
        "first_name": "JOSEPH",
        "middle_name": "A",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-03-03",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Oak Lawn, IL

Sources for this page

Verify at the official NPI Registry.