Individual provider Active NPI

Eric R Anderson, MD

  • Rheumatology Physician
  • Oconomowoc, WI
National Provider Identifier
1952763328
Registry record updated Dec 24, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Rheumatology PhysicianTaxonomy code 207RR0500X
License
75798 Issued in WI
Practice address
1185 Corporate Ctr Dr
Oconomowoc, WI 53066-4887
Phone
(262) 785-0777
Fax
(262) 785-8029
NPI assigned
Mar 24, 2016
Last updated
Dec 24, 2025By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 24, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X CO
Rheumatology Physician 207RR0500X 2019018163 MO
Rheumatology Physician 207RR0500X 75798 WI Primary

Addresses

Primary practice location

1185 Corporate Ctr Dr
Oconomowoc, WI 53066-4887

Mailing address

20800 Swenson Dr Ste 175
Waukesha, WI 53186-4000
Phone (262) 785-0777

Other practice location 1

601 N Barker Rd Ste 110
Brookfield, WI 53045-5929
Phone (262) 785-0777

Other practice location 2

20800 Swenson Dr Ste 175
Waukesha, WI 53186-4000
Phone (262) 785-0777

Other identifiers 1

IdentifierTypeStateIssuer
100178361MedicaidWI

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
I20210827001222 WI Practitioner - RheumatologyPractitioner - Internal Medicine 2062707334 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
RheumatologyAlso: Internal Medicine
Education
Other, 2016
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
West Suburban Ctr for ArthritisGroup PAC ID 3274678230, 6 clinicians

Practice addresses (Care Compare)

20800 Swenson Dr
Suite 175
Waukesha, WI 53186-4000
Phone (262) 785-0777

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
2019018163MOMDRheumatology Physician
75798WIMDRheumatology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
West Suburban Ctr for Arthritis Rheumatology CurrentSince Apr 7, 2025 Accepting new patients
West Suburban Ctr for Arthritis PastSince Dec 13, 2022 Accepting new patients

Locations

601 N Barker Rd
Ste 110
Brookfield, WI 53045
Phone (262) 785-0777

1185 Corporate Center Dr
Oconomowoc, WI 53066
Phone (262) 928-8400

20800 Swenson Dr
Ste 175
Waukesha, WI 53186
Phone (262) 785-0777

Interoperability endpoints

  • Direct secure messaging: eanderson173272@direct.phci.org

Organizations & group practices 2

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 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": "1458777600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1766534400000",
    "number": "1952763328",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "20800 SWENSON DR STE 175",
            "city": "WAUKESHA",
            "state": "WI",
            "postal_code": "531864000",
            "telephone_number": "262-785-0777",
            "fax_number": "262-785-0610"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1185 CORPORATE CTR DR",
            "city": "OCONOMOWOC",
            "state": "WI",
            "postal_code": "530664887",
            "telephone_number": "262-785-0777",
            "fax_number": "262-785-8029"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "601 N Barker Rd Ste 110",
            "address_purpose": "LOCATION",
            "city": "Brookfield",
            "state": "WI",
            "postal_code": "530455929",
            "country_code": "US",
            "telephone_number": "262-785-0777",
            "fax_number": "262-785-1829",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "20800 Swenson Dr Ste 175",
            "address_purpose": "LOCATION",
            "city": "Waukesha",
            "state": "WI",
            "postal_code": "531864000",
            "country_code": "US",
            "telephone_number": "262-785-0777",
            "fax_number": "262-785-0610",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ANDERSON",
        "first_name": "ERIC",
        "middle_name": "R",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-03-24",
        "last_updated": "2025-12-24",
        "certification_date": "2025-12-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "CO",
            "license": null,
            "primary": false
        },
        {
            "code": "207RR0500X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Rheumatology",
            "state": "MO",
            "license": "2019018163",
            "primary": false
        },
        {
            "code": "207RR0500X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Rheumatology",
            "state": "WI",
            "license": "75798",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100178361",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Oconomowoc, WI

Sources for this page

Verify at the official NPI Registry.