Hannah Ellen Williams, FNP-C, APRN

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

209028483 Issued in IL

Practice address

801 S Milwaukee Ave
Libertyville, IL 60048-3204

Phone

(847) 990-5300

NPI assigned

Aug 30, 2023

Last updated

Dec 29, 2025By 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, 2023

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Cepamerica Illinois LLPGroup PAC ID 3274793633, 492 clinicians

Practice addresses (Care Compare)

Merit-based Incentive Payment System (MIPS)

Final score

93.41 of 100Reported as group

Quality

86.81

Improvement activities

40

Cost

77.34

Merit-based Incentive Payment System (MIPS)

Final score

95.19 of 100Reported as apm

Quality

83.05

Promoting interoperability

100

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

State licenses

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.

• Cepamerica Illinois LLP

  • Emergency Medicine Physician
  • Elgin, IL
  • NPI 1912283110
  Medicare reassignment Care Compare group NPD
• Cep America - Illinois, LLP

  • Emergency Medicine Physician
  • Aurora, IL
  • NPI 1164975371
  NPD
• Cepamerica Illinois LLP

  • Emergency Medicine Physician
  • Springfield, IL
  • NPI 1871360297
  NPD
• Integrative Womens Care PC

  dba Midi Health PC

  • Obstetrics & Gynecology Physician
  • Palo Alto, CA
  • NPI 1972266732
  NPD (past)

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

{
    "created_epoch": "1693353600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1766966400000",
    "number": "1922883578",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "10350 HALIGUS RD STE A",
            "city": "HUNTLEY",
            "state": "IL",
            "postal_code": "601429545",
            "telephone_number": "815-338-6600",
            "fax_number": "847-802-7162"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "801 S MILWAUKEE AVE",
            "city": "LIBERTYVILLE",
            "state": "IL",
            "postal_code": "600483204",
            "telephone_number": "847-990-5300"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "111 W Jackson Blvd",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606043589",
            "country_code": "US",
            "telephone_number": "888-731-8994",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "999 18th St Ste 3000",
            "address_purpose": "LOCATION",
            "city": "Denver",
            "state": "CO",
            "postal_code": "802022449",
            "country_code": "US",
            "telephone_number": "888-731-8994",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "10350 Haligus Rd Ste A",
            "address_purpose": "LOCATION",
            "city": "Huntley",
            "state": "IL",
            "postal_code": "601429545",
            "country_code": "US",
            "telephone_number": "815-338-6600",
            "fax_number": "847-802-7162",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "HANNAH",
        "middle_name": "ELLEN",
        "credential": "FNP-C, APRN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2023-08-30",
        "last_updated": "2025-12-29",
        "certification_date": "2025-12-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "IL",
            "license": "209028483",
            "primary": true
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "IL",
            "license": "041.454630",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Beth Anne Wilkowski, MPT
• William a. Martinezmdsc
• Anna Williams
• Carlyn R Williams, MA, LCPC
• Erica R Williams, OTR/L
• Karlee Williams, LSW
• Kristin Williams, LCPC
• Matthew Williams, LCSW
• Willow Oak Pediatrics
• Kristin Wilson, SLP

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

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 29, 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.