Individual provider Active NPI

Timothy S Chen, M.D.

  • Diagnostic Radiology Physician
  • Appleton, WI
National Provider Identifier
1841234937
Registry record updated Jan 11, 2012
On this page

Key facts

NPPES NPI Registry
Primary specialty
Diagnostic Radiology PhysicianTaxonomy code 2085R0202X
License
48268 Issued in WI
Practice address
4321 W College Ave
Ste 300
Appleton, WI 54914-3966
Phone
(920) 739-5642
Fax
(920) 968-0259
NPI assigned
Jun 16, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 11, 2012

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Diagnostic Radiology Physician 2085R0202X 48268 WI Primary

Addresses

Primary practice location

4321 W College Ave
Ste 300
Appleton, WI 54914-3966

Mailing address

PO Box 117
Appleton, WI 54912-0117
Phone (920) 739-5642

Other identifiers 1

IdentifierTypeStateIssuer
34655900MedicaidWI

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WI, MN, MI3 enrollments
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 3

Enrollment IDStateProvider typePAC IDDetails
I20050622000857 WI Practitioner - Diagnostic Radiology 3173568979 Reassigns benefits to 9 organizations
I20260326000727 MN Practitioner - Diagnostic Radiology 3173568979 Reassigns benefits to 1 organization
I20260514001786 MI Practitioner - Diagnostic Radiology 3173568979 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Diagnostic Radiology
Education
Indiana University School of Medicine, 1999
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Radiology Associates of Appleton SCGroup PAC ID 6002851862, 31 clinicians
Premier Radiology Wisconsin LLCGroup PAC ID 9537595533, 111 clinicians
Medical X-Ray Consultants LTDGroup PAC ID 3274447313, 38 clinicians
Tomah Memorial Hospital IncGroup PAC ID 6901897016, shared by 4 NPIs, 54 clinicians

Practice addresses (Care Compare)

100 County Rd B
Shawano, WI 54166-7072
Phone (920) 358-1520

10180 Washington Ave
Mount Pleasant, WI 53177-1604
Phone (414) 973-7830

1120 Pine St
Stanley, WI 54768-1297
Phone (715) 644-5571

1818 N Meade St
Appleton, WI 54911-3454
Phone (920) 358-1520

201 W Northland Ave
Suite a
Appleton, WI 54911-2600
Phone (920) 996-0724

4130 State Rd
Suite 93
Eau Claire, WI 54701-7806
Phone (715) 830-9507

501 Gopher Dr
Tomah, WI 54660-4513
Phone (608) 372-2181

900 W Clairemont Ave
Eau Claire, WI 54701-6122
Phone (715) 858-1777

Hospital & facility affiliations

  • Ascension All Saints Hospital Hospital, Racine, WI, CCN 520096
  • Ascension Columbia St Marys Hospital Milwaukee Hospital, Milwaukee, WI, CCN 520051
  • Spooner Health System Hospital, Spooner, WI, CCN 521332
  • Cumberland Memorial Hospital Hospital, Cumberland, WI, CCN 521353
  • Winona Health Services Hospital, Winona, MN, CCN 240044

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
48268WIMDDiagnostic Radiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Premier Radiology Wisconsin, LLC Diagnostic Radiology CurrentSince Apr 23, 2025 Accepting new patients
Black River Health Inc CurrentSince Feb 2, 2026 Accepting new patients
Medical X-Ray Consultants, LTD Diagnostic Radiology CurrentSince Sep 1, 2025 Accepting new patients
Radiology Associates of Appleton, S.C. Diagnostic Radiology CurrentSince Aug 1, 2005 Accepting new patients
Tomah Memorial Hospital Inc CurrentSince Nov 1, 2025 Accepting new patients
Tomah Memorial Hospital Inc CurrentSince Jul 1, 2025 Accepting new patients
Black River Health Inc CurrentSince Feb 2, 2026 Accepting new patients
Wisconsin Radiology Specialists, S C CurrentSince Apr 23, 2025 Accepting new patients
Tomah Memorial Hospital Inc Diagnostic Radiology CurrentSince Jul 1, 2025 Accepting new patients
Radiology Associates of Appleton, S.C. PastSince Mar 26, 2023 Accepting new patients
Medical Xray Consultants, LTD PastSince May 16, 2021 Accepting new patients

Locations (25 of 29)

1000 Oakleaf Way
Altoona, WI 54720
Phone (715) 831-8130

1818 N Meade St
Appleton, WI 54911
Phone (920) 731-4101

225 Memorial Dr
Berlin, WI 54923
Phone (920) 361-1313

610 W Adams St
Blk River Fls, WI 54615
Phone (715) 284-4311

711 W Adams St
Blk River Fls, WI 54615
Phone (715) 284-1302

19333 W North Ave
Brookfield, WI 53045
Phone (262) 785-2000

1705 16th Ave
Cumberland, WI 54829
Phone (715) 822-7222

1720 Harding Ave
Eau Claire, WI 54701

900 W Clairemont Ave
Eau Claire, WI 54701
Phone (715) 717-4121

10101 S 27th St
Franklin, WI 53132
Phone (414) 325-4700

375 W River Woods Pkwy
Glendale, WI 53212
Phone (414) 326-1500

257 W Saint George Ave
Grantsburg, WI 54840
Phone (715) 463-5353

N88W14275 Main St
Menomonee Fls, WI 53051
Phone (262) 415-2001

12831 N Port Washington Rd
Mequon, WI 53097
Phone (262) 643-1300

3237 S 16th St
Milwaukee, WI 53215
Phone (414) 647-5000

2301 N Lake Dr
Milwaukee, WI 53211
Phone (414) 270-4932

4935 S 76th St
Milwaukee, WI 53220
Phone (414) 567-3211

5000 W Chambers St
Milwaukee, WI 53210
Phone (414) 447-2089

3803 Spring St
Mount Pleasant, WI 53405
Phone (262) 687-3973

10180 Washington Ave
Ste 101
Mount Pleasant, WI 53177
Phone (414) 973-7830

10180 Washington Ave
Mount Pleasant, WI 53177
Phone (414) 769-4040

130 2nd St
Neenah, WI 54956
Phone (920) 729-2063

100 Cty Road B
Shawano, WI 54166
Phone (715) 524-2161

113 4th Ave
Shell Lake, WI 54871
Phone (715) 468-7833

1280 Chandler Dr
Spooner, WI 54801
Phone (715) 635-2111

Organizations & group practices 14

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.

View all 14

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": "1150416000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1326240000000",
    "number": "1841234937",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 117",
            "city": "APPLETON",
            "state": "WI",
            "postal_code": "549120117",
            "telephone_number": "920-739-5642",
            "fax_number": "920-968-0259"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4321 W COLLEGE AVE",
            "address_2": "STE 300",
            "city": "APPLETON",
            "state": "WI",
            "postal_code": "549143966",
            "telephone_number": "920-739-5642",
            "fax_number": "920-968-0259"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHEN",
        "first_name": "TIMOTHY",
        "middle_name": "S",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-16",
        "last_updated": "2012-01-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "WI",
            "license": "48268",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "34655900",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Appleton, WI

Sources for this page

Verify at the official NPI Registry.