Jacob Jay Adashek, DO

Primary specialty

Hematology & Oncology PhysicianTaxonomy code 207RH0003X

License

81822 Issued in WI

Practice address

W180N11070 River LN
Germantown, WI 53022-3109

Phone

(262) 532-9755

NPI assigned

Mar 24, 2019

Last updated

Jun 9, 2026By the provider in NPPES

Sex

Male

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

Electronic endpoints 2

Medicare fee-for-service enrollment

Enrolled in TX, WI2 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 2

Specialty

Hematology/OncologyAlso: Medical Oncology

Education

Other, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Aurora Health Care Metro, Inc.Group PAC ID 8628986536, 75 clinicians

Aurora Advanced Healthcare, Inc.Group PAC ID 3375625833, 1,107 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Aurora St Lukes Medical Center Hospital, Milwaukee, WI, CCN 520138
• Aurora Medical Center Hospital, Grafton, WI, CCN 520207
• Aurora Medical Ctr Washington County Hospital, Hartford, WI, CCN 520038

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: aadashek@direct.aurora.org
• Direct secure messaging: jadashek428649@direct.myadvocateaurora.org

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.

• Aurora Advanced Healthcare, Inc.

  • Family Medicine Physician
  • Milwaukee, WI
  • NPI 1265629133
  Medicare reassignment Care Compare group NPD
• Aurora Health Care Metro, Inc.

  • General Acute Care Hospital
  • Milwaukee, WI
  • NPI 1861447179

  Hematology & Oncology

  Medicare reassignment Care Compare group NPD
• South Texas Oncology and Hematology, PLLC

  • Hematology & Oncology Physician
  • San Antonio, TX
  • NPI 1770664542
  Medicare reassignment NPD
• Aurora Advanced Healthcare Inc

  • Durable Medical Equipment & Medical Supplies
  • Summit, WI
  • NPI 1477186633
  NPD
• South Texas Oncology and Hematology, PLLC

  dba The START Center Pharmacy

  • Community/Retail Pharmacy
  • San Antonio, TX
  • NPI 1730422098
  NPD

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

• Aurora Health Care Metro, Inc.

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Cudahy, WI
  • NPI 1235355983

  Hospital

  Care Compare affiliation
• Aurora Health Care Metro, Inc.

  • General Acute Care Hospital
  • Milwaukee, WI
  • NPI 1861447179
  Care Compare affiliation
• Aurora Medical Center Grafton, LLC

  • General Acute Care Hospital
  • Grafton, WI
  • NPI 1265740195
  Care Compare affiliation
• Aurora Medical Center of Washington County, Inc.

  • General Acute Care Hospital
  • Hartford, WI
  • NPI 1760420103
  Care Compare affiliation
• Aurora Medical Center of Washington County, Inc.M

  • Clinic/Center
  • Hartford, WI
  • NPI 1306056056

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1553385600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780963200000",
    "number": "1144780107",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 735044",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606735044",
            "telephone_number": "800-326-2250"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "W180N11070 RIVER LN",
            "city": "GERMANTOWN",
            "state": "WI",
            "postal_code": "530223109",
            "telephone_number": "262-532-9755"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ADASHEK",
        "first_name": "JACOB",
        "middle_name": "JAY",
        "name_prefix": "Dr.",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-03-24",
        "last_updated": "2026-06-09",
        "certification_date": "2026-06-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "WI",
            "license": "81822",
            "primary": true
        },
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "WI",
            "license": "8182221",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100322138",
            "state": "WI"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "aadashek@direct.aurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "W180N11070 River Ln",
            "city": "Germantown",
            "state": "WI",
            "country_code": "US",
            "postal_code": "530223109",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "W180N11070 River Ln",
            "city": "Germantown",
            "state": "WI",
            "country_code": "US",
            "postal_code": "530223109",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Aaliyahs Haven LLC
• Acierno Dental SC (County Line Dental)
• Sara R Adams, OTR
• Adaptive Technology Resources, Inc.
• Folake Rose Adeniyi, RN
• Advanced Healthcare, S.C.
• Advanced Healthcare, S.C.
• Affiliated Dermatologists
• Sarah Marie Aita, DPT

• Hematology & Oncology Physician in Germantown, WI
• Providers in Germantown, WI by specialty
• Hematology & Oncology Physician in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 9, 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.