Active NPI
Eric R Anderson, MD
- Rheumatology Physician
- Oconomowoc, WI
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Rheumatology Physician
- License
- 75798
- 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, 2025
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 100178361 | Medicaid | WI |
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
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Rheumatology
- Education
- Other, 2016
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
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
| License | State | Type | Specialty |
|---|---|---|---|
| 2019018163 | MO | MD | Rheumatology Physician |
| 75798 | WI | MD | Rheumatology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| West Suburban Ctr for Arthritis | Rheumatology | Current | Accepting new patients |
| West Suburban Ctr for Arthritis | Past | 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
- 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.
-
- Rheumatology Physician
- Waukesha, WI
- NPI 1407857188
-
- Non-Pharmacy Dispensing Site
- Waukesha, WI
- NPI 1932819505
Hospital & facility affiliations 5
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- Mental Health Clinic/Center (Including Community Mental Health Center)
- Cudahy, WI
- NPI 1235355983
Hospital
-
- General Acute Care Hospital
- Milwaukee, WI
- NPI 1861447179
-
- General Acute Care Hospital
- Oconomowoc, WI
- NPI 1366420531
-
dba ProHealth Pharmacy - Oconomowoc
- Community/Retail Pharmacy
- Oconomowoc, WI
- NPI 1497942205
Hospital
-
- General Acute Care Hospital
- Waukesha, WI
- NPI 1629056890
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": []
}
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- Andrew J. Schroettner, MDSC
- Alexander N Annis, ED.S, M.ED
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Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 24, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.