Clarissa Lauren Williams

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

209024051 Issued in IL

Practice address

1801 W Taylor St Ste 3D
Chicago, IL 60612-4795

Phone

(866) 600-2273

NPI assigned

Sep 22, 2021

Sex

Female

Sole proprietor

No

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

Specialties & licenses 3

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

Merit-based Incentive Payment System (MIPS)

Final score

93.28 of 100Reported as group

Quality

73.53

Promoting interoperability

100

Improvement activities

40

Cost

70.73

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: cmorrow140125@uihealth.direct-ci.com

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.

• The Board of Trustees of the University of Illinois

  • Anatomic Pathology Physician
  • Chicago, IL
  • NPI 1386863819
  Medicare reassignment NPD
• The Board of Trustees of the University of Illinois

  • Occupational Medicine Physician
  • Chicago, IL
  • NPI 1043727571
  NPD
• The Board of Trustees of the University of Illinois

  • Internal Medicine Physician
  • Chicago, IL
  • NPI 1609094739
  NPD
• The Methodist Hospitals, Inc

  • Internal Medicine Physician
  • Gary, IN
  • NPI 1720290349
  NPD (past)

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

{
    "created_epoch": "1632268800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1738800000000",
    "number": "1619648334",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "31 SIBLEY ST STE A",
            "city": "HAMMOND",
            "state": "IN",
            "postal_code": "463201725",
            "telephone_number": "219-802-8800"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1801 W TAYLOR ST STE 3D",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606124795",
            "telephone_number": "866-600-2273"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "CLARISSA",
        "middle_name": "LAUREN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-09-22",
        "last_updated": "2025-02-06",
        "certification_date": "2025-02-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "IN",
            "license": "28213693A",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "IN",
            "license": "71011689A",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "IL",
            "license": "209024051",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Cassidy Williams, DO
• Charles Emmett Williams Jr., DDS
• Charlie Williams
• Christel Williams
• Christopher Patrick Williams, PH.D.
• Claude E Williams, D.C.
• Cody James Williams, MD
• Connor Williams, LCSW
• Corinne Williams, PA-C
• Cory R Williams, NP

• Family Nurse Practitioner in Chicago, IL
• Providers in Chicago, IL by specialty
• Family Nurse Practitioner in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 6, 2025; 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.