Individual provider Active NPI

Robert Joseph Lesniak, M.D.

  • Vascular & Interventional Radiology Physician
  • Waukesha, WI
National Provider Identifier
1407841018
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Vascular & Interventional Radiology PhysicianTaxonomy code 2085R0204X
License
40187-020 Issued in WI
Practice address
725 American Ave
Waukesha, WI 53188-5031
Phone
(262) 928-2400
Fax
(262) 928-7621
NPI assigned
Sep 20, 2005
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Vascular & Interventional Radiology Physician 2085R0204X 40187-020 WI Primary

Addresses

Primary practice location

725 American Ave
Waukesha, WI 53188-5031

Mailing address

725 American Ave
Waukesha, WI 53188-5031
Phone (262) 928-2400

Other identifiers 1

IdentifierTypeStateIssuer
34340600MedicaidWI

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
I20041013000707 WI Practitioner - Diagnostic RadiologyPractitioner - Interventional Radiology 4688634777 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Diagnostic RadiologyAlso: Interventional Radiology
Education
Medical College of Wisconsin, 1997
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Prohealth Medical Group IncGroup PAC ID 3476465188, 475 clinicians
Radiology Waukesha SCGroup PAC ID 3274520648, 29 clinicians

Practice addresses (Care Compare)

1011 Spring City Dr
Suite 250
Waukesha, WI 53186-5934
Phone (262) 928-0370

1185 Corporate Ctr Dr
Suite 175
Oconomowoc, WI 53066-4889
Phone (262) 928-8400

18905 W Capitol Dr
Suite 110
Brookfield, WI 53045-2752
Phone (866) 432-7855

195 Discovery Dr
Brookfield, WI 53045-2862
Phone (262) 513-7100

2130 Big Bend Rd
Waukesha, WI 53189-7624
Phone (262) 928-7555

240 Maple Ave
Mukwonago, WI 53149-8475
Phone (262) 928-1900

725 American Ave
Waukesha, WI 53188-5031
Phone (262) 928-2400

N16W24131 Riverwood Dr
Waukesha, WI 53188-1106
Phone (262) 696-0808

N17W24100 Riverwood Dr
Waukesha, WI 53188-1127
Phone (262) 928-4704

S69W15472 Janesville Rd
Muskego, WI 53150-9330
Phone (262) 928-7000

Hospital & facility affiliations

  • Waukesha Memorial Hospital Hospital, Waukesha, WI, CCN 520008
  • Watertown Memorial Hospital Hospital, Watertown, WI, CCN 520116
  • Oconomowoc Memorial Hospital Hospital, Oconomowoc, WI, CCN 520062

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
40187-020WIMDVascular & Interventional Radiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Prohealth Medical Group Inc CurrentSince Dec 9, 2010 Accepting new patients
Radiology Waukesha S.C. CurrentSince Jul 1, 2003 Accepting new patients
Prohealth Medical Group Inc. CurrentSince Dec 9, 2010 Accepting new patients
Prohealth Medical Group Inc Past Accepting new patients

Locations

791 Summit Ave
Summit, WI 53066
Phone (262) 569-0251

125 Hospital Dr
Watertown, WI 53098
Phone (920) 261-4210

1111 Delafield St
Ste 301
Waukesha, WI 53188
Phone (262) 542-8020

N14W23900 Stone Ridge Dr
Waukesha, WI 53188
Phone (262) 549-3030

725 American Ave
Waukesha, WI 53188
Phone (262) 544-2011

1111 Delafield St
Waukesha, WI 53188
Phone (262) 542-0074

N17W24100 Riverwood Dr
Waukesha, WI 53188
Phone (262) 820-3093

Interoperability endpoints

  • Direct secure messaging: rlesniak14699@direct.phci.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 and National Provider Directory roles.

Hospital & facility affiliations 4

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": "1127174400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1407841018",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "725 AMERICAN AVE",
            "city": "WAUKESHA",
            "state": "WI",
            "postal_code": "531885031",
            "telephone_number": "262-928-2400",
            "fax_number": "262-928-7621"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "725 AMERICAN AVE",
            "city": "WAUKESHA",
            "state": "WI",
            "postal_code": "531885031",
            "telephone_number": "262-928-2400",
            "fax_number": "262-928-7621"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LESNIAK",
        "first_name": "ROBERT",
        "middle_name": "JOSEPH",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-09-20",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0204X",
            "taxonomy_group": "",
            "desc": "Radiology, Vascular & Interventional Radiology",
            "state": "WI",
            "license": "40187-020",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "34340600",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Waukesha, WI

Sources for this page

Verify at the official NPI Registry.