NPIMap

Individual provider Active NPI

Nader Honarkhah, MD

  • Internal Medicine Physician
  • Janesville, WI
National Provider Identifier
1851464242
Registry record updated Feb 5, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
42212 Issued in WI
Practice address
3524 E Milwaukee St
Janesville, WI 53546-1626
Phone
(608) 756-7100
NPI assigned
Nov 16, 2006
Last updated
Feb 5, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 5, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 42212 WI Primary

Addresses

Primary practice location

3524 E Milwaukee St
Janesville, WI 53546-1626

Mailing address

3524 E Milwaukee St
Janesville, WI 53546-1626
Phone (608) 756-7100

Other identifiers 1

IdentifierTypeStateIssuer
33336100MedicaidWI

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20100312000865 WI Practitioner - Internal Medicine 3274668405 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Medical College of Ohio, 1997
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Mercy Health System CorporationGroup PAC ID 7416860440, 749 clinicians

Practice addresses (Care Compare)

3524 E Milwaukee St
Janesville, WI 53546-1626
Phone (608) 756-7100

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
42212WIMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Mercy Health System Corporation Current Accepting new patients
Mercy Health System Corporation CurrentSince Nov 20, 2000 Accepting new patients
Mercy Health System Corporation CurrentSince Nov 20, 2000 Accepting new patients
Mercy Health System Corporation Past Accepting new patients

Locations

29624 Network Pl
Chicago, IL 60673
Phone (608) 741-7652

1000 Mineral Point Ave
Janesville, WI 53548
Phone (608) 261-6868

3524 E Milwaukee St
Janesville, WI 53546
Phone (608) 756-7100

Interoperability endpoints

  • Direct secure messaging: nhonarkhah3661@direct.mhemail.org

Organizations & group practices 4

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.

Hospital & facility affiliations 7

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": "1163635200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770249600000",
    "number": "1851464242",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3524 E MILWAUKEE ST",
            "city": "JANESVILLE",
            "state": "WI",
            "postal_code": "535461626",
            "telephone_number": "608-756-7100"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3524 E MILWAUKEE ST",
            "city": "JANESVILLE",
            "state": "WI",
            "postal_code": "535461626",
            "telephone_number": "608-756-7100"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HONARKHAH",
        "first_name": "NADER",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-11-16",
        "last_updated": "2026-02-05",
        "certification_date": "2026-02-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "WI",
            "license": "42212",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "33336100",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Janesville, WI

Sources for this page

Verify at the official NPI Registry.