Individual provider Active NPI

Ellen L Ziaja, MD

  • Radiation Oncology Physician
  • Summit, WI
National Provider Identifier
1104868181
Registry record updated Sep 15, 2023
On this page

Key facts

NPPES NPI Registry
Primary specialty
Radiation Oncology PhysicianTaxonomy code 2085R0001X
License
39952 Issued in WI
Practice address
36500 Aurora Dr
Summit, WI 53066-4899
Phone
(262) 434-1800
Fax
(414) 649-5309
NPI assigned
Jun 12, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 15, 2023

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Radiation Oncology Physician 2085R0001X 39952 WI Primary

Addresses

Primary practice location

36500 Aurora Dr
Summit, WI 53066-4899

Mailing address

11516 N Port Washington Rd
Ste 202
Mequon, WI 53092-3441
Phone (262) 241-5040

Other identifiers 1

IdentifierTypeStateIssuer
32461100MedicaidWI

Medicare participation

Medicare enrollment files
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: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20040719000106 WI Practitioner - Radiation Oncology 9234030180 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Radiation Oncology
Education
Wayne State University School of Medicine, 1993
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Radiation Oncology Associates LTDGroup PAC ID 7618924622, 23 clinicians

Practice addresses (Care Compare)

1222 N 23Rd St
Sheboygan, WI 53081-3171
Phone (920) 457-6800

2845 Greenbrier Rd
Green Bay, WI 54311-6519
Phone (920) 288-4160

2900 W Oklahoma Ave
Milwaukee, WI 53215-4330
Phone (414) 649-6420

36500 Aurora Dr
Summit, WI 53066-4899
Phone (262) 434-1800

6811 118TH Ave
Kenosha, WI 53142-8420
Phone (262) 857-5700

8901 W Lincoln Ave
West Allis, WI 53227-2409
Phone (414) 328-6460

945 N 12TH St
Milwaukee, WI 53233-1305
Phone (414) 219-7140

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
39952WIMDRadiation Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Radiation Oncology Associates, LTD Radiation Oncology CurrentSince Mar 28, 2012 Accepting new patients

Locations

2845 Greenbrier Rd
Green Bay, WI 54311
Phone (920) 288-3388

11516 N Port Washington Rd
Ste 107
Mequon, WI 53092
Phone (262) 241-5040

2900 W Oklahoma Ave
Milwaukee, WI 53215
Phone (414) 385-2590

945 N 12th St
Milwaukee, WI 53233
Phone (414) 219-5800

3809 Spring St
Mount Pleasant, WI 53405
Phone (262) 687-5000

855 N Westhaven Dr
Oshkosh, WI 54904
Phone (920) 451-5643

36500 Aurora Dr
Summit, WI 53066
Phone (262) 434-1000

8901 W Lincoln Ave
West Allis, WI 53227
Phone (414) 328-6000

Organizations & group practices 1

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.

Hospital & facility affiliations 6

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

NPI Registry JSON

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

{
    "created_epoch": "1150070400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1694736000000",
    "number": "1104868181",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "11516 N PORT WASHINGTON RD",
            "address_2": "STE 202",
            "city": "MEQUON",
            "state": "WI",
            "postal_code": "530923441",
            "telephone_number": "262-241-5040",
            "fax_number": "262-251-5261"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "36500 AURORA DR",
            "city": "SUMMIT",
            "state": "WI",
            "postal_code": "530664899",
            "telephone_number": "262-434-1800",
            "fax_number": "414-649-5309"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ZIAJA",
        "first_name": "ELLEN",
        "middle_name": "L",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-06-12",
        "last_updated": "2023-09-15",
        "certification_date": "2023-09-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "WI",
            "license": "39952",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "32461100",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Summit, WI

Sources for this page

Verify at the official NPI Registry.