Janine Marie Ahrens, APNP

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

1559 Issued in WI

Practice address

1260 Sentry Dr Ste 140
Waukesha, WI 53186-5990

Phone

(262) 524-1024

Fax

(262) 524-8767

NPI assigned

Jul 19, 2006

Last updated

Feb 5, 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

Other identifiers 1

Other names 1

• Janine Marie Lapp Former name

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, 1999

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Nephrology Associates SCGroup PAC ID 7416841663, 8 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Ascension Columbia St Marys Hospital Milwaukee Hospital, Milwaukee, WI, CCN 520051
• Waukesha Memorial Hospital Hospital, Waukesha, WI, CCN 520008
• Aurora Medical Center Hospital, Grafton, WI, CCN 520207

Merit-based Incentive Payment System (MIPS)

Final score

84.73 of 100Reported as group

Quality

65.3

Promoting interoperability

65

Improvement activities

40

Cost

82.4

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jahrens43477@direct.davitaphysiciansolutions.com
• Direct secure messaging: janine.ahrens@milwaukeenephrologists.directbygreenway.com

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.

• Nephrology Associates SC

  dba Nephrology Associates of Waukesha, SC - Fort Atkinson

  • Specialist
  • Fort Atkinson, WI
  • NPI 1326222423
  Medicare reassignment Care Compare group NPD
• Aurora Advanced Healthcare, Inc.

  • Family Medicine Physician
  • Milwaukee, WI
  • NPI 1265629133
  Medicare reassignment NPD
• Aurora Medical Group, Inc.

  • Certified Registered Nurse Anesthetist
  • Milwaukee, WI
  • NPI 1427271378
  Medicare reassignment NPD
• Aurora Advanced Healthcare Inc

  • Durable Medical Equipment & Medical Supplies
  • Summit, WI
  • NPI 1477186633
  NPD
• Aurora Medical Group, Inc.

  • Durable Medical Equipment & Medical Supplies
  • Oshkosh, WI
  • NPI 1326858044
  NPD
• Nephrology Associates SC

  • Specialist
  • Waukesha, WI
  • NPI 1871679514
  NPD
• Aurora Quick Care, LLC

  • Nurse Practitioner
  • Mequon, WI
  • NPI 1609820729
  NPD (past)
• Childrens Medical Group Inc

  • Pediatrics Physician
  • Milwaukee, WI
  • NPI 1790732410
  NPD (past)
• Garfield Dialysis Venture LLC

  dba Humboldt Ridge Dialysis Center

  • Clinic/Center
  • Milwaukee, WI
  • NPI 1043491194
  NPD (past)

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

• Aurora Medical Center Grafton, LLC

  • General Acute Care Hospital
  • Grafton, WI
  • NPI 1265740195
  Care Compare affiliation
• Columbia St. Mary's Hospital Milwaukee, Inc.

  dba Ascension Columbia St Mary's Hospital Milwaukee Campus

  • General Acute Care Hospital
  • Milwaukee, WI
  • NPI 1871656082
  Care Compare affiliation
• Prohealth Waukesha Memorial Hospital, Inc.

  • General Acute Care Hospital
  • Waukesha, WI
  • NPI 1629056890
  Care Compare affiliation

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

{
    "created_epoch": "1153267200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770249600000",
    "number": "1659390896",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1260 SENTRY DR STE 140",
            "city": "WAUKESHA",
            "state": "WI",
            "postal_code": "531865990",
            "telephone_number": "262-524-1024",
            "fax_number": "262-524-8767"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1260 SENTRY DR STE 140",
            "city": "WAUKESHA",
            "state": "WI",
            "postal_code": "531865990",
            "telephone_number": "262-524-1024",
            "fax_number": "262-524-8767"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "AHRENS",
        "first_name": "JANINE",
        "middle_name": "MARIE",
        "credential": "APNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-07-19",
        "last_updated": "2026-02-05",
        "certification_date": "2026-02-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "WI",
            "license": "1559",
            "primary": true
        },
        {
            "code": "363LA2200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Adult Health",
            "state": "WI",
            "license": "1559-33",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "43911800",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "JANINE",
            "last_name": "LAPP",
            "middle_name": "MARIE",
            "credential": "APNP",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

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• Tracy Albergo
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• Nurse Practitioner in Waukesha, WI
• Providers in Waukesha, WI by specialty
• Nurse Practitioner in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 5, 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.