Diana Marie Stefanik, APN

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

209014143 Issued in IL

Practice address

951 Essington Rd
Joliet, IL 60435-8439

Phone

(630) 323-6116

NPI assigned

Apr 5, 2016

Last updated

Jun 15, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in IL

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 2015

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Illinois Bone and Joint Institute, LLCGroup PAC ID 6002814878, shared by 58 NPIs, 603 clinicians

Health Service Systems, IncGroup PAC ID 2264408699, 63 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Silver Cross Hospital and Medical Centers Hospital, New Lenox, IL, CCN 140213

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

Practice roles

Locations

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.

• Health Service Systems, Inc

  • Internal Medicine Physician
  • New Lenox, IL
  • NPI 1851323257
  Medicare reassignment Care Compare group NPD
• Advocate Health and Hospitals Corporation

  dba Advocate Medical Group

  • Multi-Specialty Clinic/Center
  • Oak Brook, IL
  • NPI 1700824455
  Medicare reassignment NPD
• Advocate Health & Hospitals Corp.

  dba Bethany Hospital

  • Emergency Medicine Physician
  • Chicago, IL
  • NPI 1750315545
  NPD
• Advocate Health and Hospitals Corporation

  dba Advocate Children's Hospital

  • Children's Hospital
  • Oak Lawn, IL
  • NPI 1508315516
  NPD
• Health Service Systems, Inc

  • Urgent Care Clinic/Center
  • Mokena, IL
  • NPI 1578235800
  NPD

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

• Silver Cross Hospital & Medical Centers

  • Rehabilitation Hospital Unit
  • New Lenox, IL
  • NPI 1003933797
  Care Compare affiliation
• Silver Cross Hospital & Medical Centers

  dba Silver Cross Hospital

  • General Acute Care Hospital
  • New Lenox, IL
  • NPI 1568553519
  Care Compare affiliation

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

{
    "created_epoch": "1459814400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781481600000",
    "number": "1881057917",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "951 ESSINGTON RD",
            "city": "JOLIET",
            "state": "IL",
            "postal_code": "604358439",
            "telephone_number": "630-323-6116"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "951 ESSINGTON RD",
            "city": "JOLIET",
            "state": "IL",
            "postal_code": "604358439",
            "telephone_number": "630-323-6116"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "STEFANIK",
        "first_name": "DIANA",
        "middle_name": "MARIE",
        "credential": "APN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-04-05",
        "last_updated": "2026-06-15",
        "certification_date": "2026-06-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "IL",
            "license": "209014143",
            "primary": true
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "IL",
            "license": "209014143",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Crystal Starling
• Jennifer Staros
• State of Il Dept of Human Services
• Kathleen R. Stear, CRNA
• Alexis Stefaniak-Clark, MD
• Paul Michael Steffensen, PHARM.D.
• Douglas E. Steger, CRNA
• Judith Ann Stengele, LCPC
• Stephen P Morimoto, DDS, LTD
• Stepping Stones, Inc

• Nurse Practitioner in Joliet, IL
• Providers in Joliet, IL by specialty
• Nurse Practitioner in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 15, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.