Sarah Jane Williams, NP

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

11635 Issued in WI

Practice address

420 E Division St
Fond Du Lac, WI 54935-4560

Phone

(920) 926-7400

NPI assigned

Feb 1, 2022

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in WI

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, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Agnesian Healthcare IncGroup PAC ID 1658289624, 392 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• SSM Health St Agnes Hospital-Fond Du Lac Hospital, Fond Du Lac, WI, CCN 520088
• Aspirus Divine Savior Hospital Hospital, Portage, WI, CCN 520041

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: shalfmann540029@direct-ehr-ssmhc.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.

• Agnesian Healthcare, Inc

  • General Acute Care Hospital
  • Fond Du Lac, WI
  • NPI 1346228541
  Medicare reassignment Care Compare group NPD
• Agnesian Healthcare Inc

  • Community/Retail Pharmacy
  • Waupun, WI
  • NPI 1366417917
  NPD
• Agnesian Healthcare Inc

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Fond Du Lac, WI
  • NPI 1841320884
  NPD

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

• Agnesian Healthcare, Inc

  • General Acute Care Hospital
  • Fond Du Lac, WI
  • NPI 1346228541
  Care Compare affiliation
• Divine Savior Healthcare, Inc.

  • General Acute Care Hospital
  • Portage, WI
  • NPI 1124083894
  Care Compare affiliation

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

{
    "created_epoch": "1643673600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782259200000",
    "number": "1285387134",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "420 E DIVISION ST",
            "city": "FOND DU LAC",
            "state": "WI",
            "postal_code": "549354560",
            "telephone_number": "920-926-7400"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "420 E DIVISION ST",
            "city": "FOND DU LAC",
            "state": "WI",
            "postal_code": "549354560",
            "telephone_number": "920-926-7400"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "SARAH",
        "middle_name": "JANE",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2022-02-01",
        "last_updated": "2026-06-24",
        "certification_date": "2026-06-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "WI",
            "license": "11635",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Terri L Wilkens, LCSW
• William C Mauthe & Associates DDS SC
• Becky L Williams, CTRS
• Gail Williams
• Karen Ann Williams, APNP
• Shaquiorya M Williams
• Tessa Williamson, L.AC
• Angela Lee Williquette, PTA
• David F. Wiltzius, LPC
• Carrie Windorff

• Nurse Practitioner in Fond Du Lac, WI
• Providers in Fond Du Lac, WI by specialty
• Nurse Practitioner in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 24, 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.