NPIMap

Individual provider Active NPI

Nway Le Ko Ko, MBBS

  • Clinical Cardiac Electrophysiology Physician
  • Eau Claire, WI
National Provider Identifier
1649646126
Registry record updated Nov 5, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Cardiac Electrophysiology PhysicianTaxonomy code 207RC0001X
License
83831 Issued in WI
Practice address
1400 Bellinger St
Eau Claire, WI 54703-5222
Phone
(715) 838-5222
NPI assigned
Aug 19, 2015
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 5, 2025

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

Specialties & licenses 5

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Cardiac Electrophysiology Physician 207RC0001X 58265 AZ
Cardiovascular Disease Physician 207RC0000X 58265 AZ
Clinical Cardiac Electrophysiology Physician 207RC0001X 78406 MN
Cardiovascular Disease Physician 207RC0000X 83831 WI
Clinical Cardiac Electrophysiology Physician 207RC0001X 83831 WI Primary

Addresses

Primary practice location

1400 Bellinger St
Eau Claire, WI 54703-5222

Mailing address

PO Box 860912 Mayo Clinic
Minneapolis, MN 55486-0912
Phone (507) 284-2511

Other practice location 1

200 1st St SW
Rochester, MN 55905-0001
Phone (507) 284-2511

Other practice location 2

13400 E Shea Blvd
Scottsdale, AZ 85259-5452
Phone (480) 301-8000

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address nkoko598775@ehrdirect.mayoclinicmsg.org

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WI, MN2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20241008001218 WI Practitioner - Cardiac ElectrophysiologyPractitioner - Cardiovascular Disease (Cardiology) 9032443106 Reassigns benefits to 6 organizations
I20250203001097 MN Practitioner - Cardiac ElectrophysiologyPractitioner - Cardiovascular Disease (Cardiology) 9032443106 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Cardiac ElectrophysiologyAlso: Cardiovascular Disease (Cardiology)
Education
Other, 2014
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Mayo Clinic Health System-Northwest Wisconsin Region IncGroup PAC ID 4385553627, shared by 21 NPIs, 797 clinicians
Mayo ClinicGroup PAC ID 6507778255, 4,829 clinicians

Practice addresses (Care Compare)

1400 Bellinger St
Eau Claire, WI 54703-5222
Phone (715) 838-5222

200 1St St SW
Rochester, MN 55905-0001
Phone (507) 284-2511

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
100 of 100Reported as apm
Quality
96.51
Promoting interoperability
100
Improvement activities
40

Merit-based Incentive Payment System (MIPS)

Final score
86.47 of 100Reported as group
Quality
78.27
Promoting interoperability
100
Improvement activities
40
Cost
76.62

Procedures performed for Medicare patients

ProcedureNumber of procedures
Pacemaker insertion or repair39

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
58265AZMDCardiovascular Disease Physician
83831WIMDClinical Cardiac Electrophysiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Mayo Clinic Health System-Northwest Wisconsin Region, Inc. Current Accepting new patients
Mayo Clinic CurrentSince Dec 19, 2024 Accepting new patients
Mayo Clinic Health System-Northwest Wisconsin Region, Inc. CurrentSince Sep 16, 2024 Accepting new patients
Mayo Clinic Current Accepting new patients
Mayo Clinic Health System-Northwest Wisconsin Region, Inc. Current Accepting new patients
Mayo Clinic Health System-Northwest Wisconsin Region, Inc. Current Accepting new patients
Mayo Clinic Health System-Northwest Wisconsin Region, Inc. Current Accepting new patients
Mayo Clinic CurrentSince Dec 19, 2024 Accepting new patients
Mayo Clinic Health System-Northwest Wisconsin Region, Inc. CurrentSince Sep 16, 2024 Accepting new patients
Mayo Clinic Health System-Northwest Wisconsin Region, Inc. Current Accepting new patients

Locations

5777 E Mayo Blvd
Phoenix, AZ 85054
Phone (480) 342-1800

13400 E Shea Blvd
Scottsdale, AZ 85259

200 1st St SW
Rochester, MN 55905
Phone (507) 266-4850

1222 E Woodland Ave
Barron, WI 54812
Phone (715) 537-3166

1501 Thompson St
Bloomer, WI 54724
Phone (715) 568-2000

1221 Whipple St
Eau Claire, WI 54703
Phone (715) 831-0100

733 W Clairemont Ave
Eau Claire, WI 54701
Phone (715) 838-3806

1400 Bellinger St
Eau Claire, WI 54703
Phone (715) 838-3311

800 West Ave S
La Crosse, WI 54601
Phone (608) 372-5951

2321 Stout Rd
Menomonie, WI 54751
Phone (715) 235-5531

13025 8th St
Osseo, WI 54758
Phone (715) 597-2575

Interoperability endpoints

  • Direct secure messaging: nkoko598775@ehrdirect.mayoclinicmsg.org

Organizations & group practices 11

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 5

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": "1439942400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762300800000",
    "number": "1649646126",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 860912 MAYO CLINIC",
            "city": "MINNEAPOLIS",
            "state": "MN",
            "postal_code": "554860912",
            "telephone_number": "507-284-2511"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1400 BELLINGER ST",
            "city": "EAU CLAIRE",
            "state": "WI",
            "postal_code": "547035222",
            "telephone_number": "715-838-5222"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "200 1st St SW",
            "address_purpose": "LOCATION",
            "city": "Rochester",
            "state": "MN",
            "postal_code": "559050001",
            "country_code": "US",
            "telephone_number": "507-284-2511",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "13400 E Shea Blvd",
            "address_purpose": "LOCATION",
            "city": "Scottsdale",
            "state": "AZ",
            "postal_code": "852595452",
            "country_code": "US",
            "telephone_number": "480-301-8000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KO KO",
        "first_name": "NWAY",
        "middle_name": "LE",
        "credential": "MBBS",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2015-08-19",
        "last_updated": "2025-11-05",
        "certification_date": "2025-11-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Clinical Cardiac Electrophysiology",
            "state": "AZ",
            "license": "58265",
            "primary": false
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "AZ",
            "license": "58265",
            "primary": false
        },
        {
            "code": "207RC0001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Clinical Cardiac Electrophysiology",
            "state": "MN",
            "license": "78406",
            "primary": false
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "WI",
            "license": "83831",
            "primary": false
        },
        {
            "code": "207RC0001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Clinical Cardiac Electrophysiology",
            "state": "WI",
            "license": "83831",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "nkoko598775@ehrdirect.mayoclinicmsg.org",
            "affiliation": "N",
            "address_1": "1400 Bellinger St",
            "city": "Eau Claire",
            "state": "WI",
            "country_code": "US",
            "postal_code": "547035222",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Eau Claire, WI

Sources for this page

Verify at the official NPI Registry.