Individual provider Active NPI

Mark Southard, MD

  • Diagnostic Radiology Physician
  • Eau Claire, WI
National Provider Identifier
1003868811
Registry record updated Jan 5, 2022
On this page

Key facts

NPPES NPI Registry
Primary specialty
Diagnostic Radiology PhysicianTaxonomy code 2085R0202X
License
45008 Issued in WI
Practice address
900 W Clairmont Ave
Eau Claire, WI 54701
Phone
(715) 839-4151
NPI assigned
May 17, 2006
Last updated
Jan 5, 2022By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 5, 2022

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Body Imaging Physician 2085B0100X 45008 WI
Diagnostic Radiology Physician 2085R0202X 45008 WI Primary
Diagnostic Ultrasound Physician 2085U0001X 45008 WI

Addresses

Primary practice location

900 W Clairmont Ave
Eau Claire, WI 54701

Mailing address

2715 West Frank St
Eau Claire, WI 54703
Phone (715) 834-5511

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address msouthard83369@ewd.direct.hshs.org Direct St Vincent Hospital-Hospital Sisters-Third Order of St Francis

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WI, MN, WA, MI4 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 4

Enrollment IDStateProvider typePAC IDDetails
I20060630000059 WI Practitioner - Diagnostic Radiology 7012929417 Reassigns benefits to 10 organizations
I20060905000425 MN Practitioner - Diagnostic Radiology 7012929417 Reassigns benefits to 1 organization
I20240730003038 WA Practitioner - Diagnostic Radiology 7012929417 Reassigns benefits to 1 organization
I20260214000761 MI Practitioner - Diagnostic Radiology 7012929417 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Diagnostic Radiology
Education
Other, 2001
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Hurley Medical CenterGroup PAC ID 2961308481, 336 clinicians
Diagnostic Radiology Associates of Wisconsin SCGroup PAC ID 5799752192, 5 clinicians
Medical X-Ray Consultants LTDGroup PAC ID 3274447313, 38 clinicians
Imaging Associates of Indiana PCGroup PAC ID 1254503345, 293 clinicians
Multicare Health SystemGroup PAC ID 7719899897, 2,312 clinicians
Tomah Memorial Hospital IncGroup PAC ID 6901897016, shared by 4 NPIs, 54 clinicians

Practice addresses (Care Compare)

Woodruff, WI 54568
Phone (906) 449-3000

1 Hurley Plasa
9W Hurley Maternal Fetal Medicine
Flint, MI 48503-5902
Phone (810) 262-4787

1 Hurley PLZ
Flint, MI 48503-5902

1024 N Main St
Rice Lake, WI 54868-1236
Phone (715) 234-8151

1200 Grant Blvd W
Wabasha, MN 55981-1042
Phone (651) 565-5500

2004 High Point Dr
Altoona, WI 54720-3506
Phone (888) 501-6087

300 E 5TH Ave
Spokane, WA 99202-1334

311 S L St
Tacoma, WA 98405-3720

400 E 5TH Ave
Spokane, WA 99202-1334
Phone (509) 838-2531

4700 Point Fosdick Dr
Gig Harbor, WA 98335-1706

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

7770 S Cross Cut TRL
Woodruff, WI 54568-9668
Phone (281) 870-4592

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

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
45008WIMDDiagnostic Ultrasound Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Imaging Associates of Michigan PLLC Diagnostic Radiology CurrentSince Dec 1, 2025 Accepting new patients
Tomah Memorial Hospital Inc CurrentSince Nov 1, 2025 Accepting new patients
Tomah Memorial Hospital Inc CurrentSince Oct 30, 2010 Accepting new patients
Black River Health Inc CurrentSince Dec 30, 2024 Accepting new patients
Black River Health Inc CurrentSince Dec 30, 2024 Accepting new patients
Diagnostic Radiology Associates of Wisconsin SC Diagnostic Radiology CurrentSince Dec 21, 2024 Accepting new patients
Medical X-Ray Consultants, LTD Body Imaging CurrentSince Jul 1, 2006 Accepting new patients
Multicare Health System CurrentSince Jun 28, 2024 Accepting new patients
Multicare Health System Current Accepting new patients
Wisconsin Radiology Specialists, S C CurrentSince Jun 2, 2025 Accepting new patients
Multicare Health System Body Imaging CurrentSince Jun 28, 2024 Accepting new patients
Medical Xray Consultants, LTD CurrentSince May 16, 2021 Accepting new patients
Hurley Medical Center CurrentSince Jan 11, 2026 Accepting new patients
Imaging Associates of Indiana, PC Diagnostic Radiology CurrentSince Jul 12, 2025 Accepting new patients
Black River Health Inc Current Accepting new patients
Hurley Medical Center Diagnostic Radiology CurrentSince Jan 11, 2026 Accepting new patients
Premier Radiology Wisconsin, LLC Diagnostic Radiology CurrentSince Jun 2, 2025 Accepting new patients
Tomah Memorial Hospital Inc Diagnostic Radiology CurrentSince Oct 30, 2010 Accepting new patients
Multicare Health System Past Accepting new patients
Radiology Associates of Canton, Inc. Body Imaging Past Accepting new patients

Locations (25 of 47)

801 S Main St
Clinton, IN 47842
Phone (765) 832-1212

1201 S Main St
Crown Point, IN 46307
Phone (219) 738-2100

24 Joliet St
Dyer, IN 46311
Phone (219) 864-2237

1701 S Creasy Ln
Lafayette, IN 47905
Phone (765) 502-4400

3500 Franciscan Way
Michigan City, IN 46360
Phone (219) 852-1524

1104 E Grace St
Rensselaer, IN 47978
Phone (219) 866-2026

1429 N 6th St
Terre Haute, IN 47807
Phone (812) 242-3115

1606 N 7th St
Terre Haute, IN 47804
Phone (812) 238-7523

221 S 6th St
Terre Haute, IN 47807
Phone (812) 242-3105

4001 Wabash Ave
Terre Haute, IN 47803
Phone (812) 238-7710

5500 S US Highway 41
Terre Haute, IN 47802
Phone (812) 238-4599

567 N 5th St
Terre Haute, IN 47809
Phone (812) 237-3632

2411 Laporte Ave
Valparaiso, IN 46383
Phone (219) 476-7226

1 Hurley Plz
Flint, MI 48503
Phone (810) 257-9000

1200 Grant Blvd W
Wabasha, MN 55981
Phone (651) 565-4531

13333 Northwest Fwy
Ste 540
Houston, TX 77040
Phone (281) 962-3608

4700 Point Fosdick Dr
Ste 104
Gig Harbor, WA 98335
Phone (253) 459-7590

222 State Ave N
Kent, WA 98030
Phone (253) 372-7680

311 S L St
Tacoma, WA 98405
Phone (253) 403-1444

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

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

201 W Northland Ave
Ste A
Appleton, WI 54911
Phone (920) 996-0724

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

Organizations & group practices 22

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.

View all 22

Hospital & facility affiliations 6

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": "1147824000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1641340800000",
    "number": "1003868811",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2715 WEST FRANK ST",
            "city": "EAU CLAIRE",
            "state": "WI",
            "postal_code": "54703",
            "telephone_number": "715-834-5511",
            "fax_number": "715-834-5870"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "900 W CLAIRMONT AVE",
            "city": "EAU CLAIRE",
            "state": "WI",
            "postal_code": "54701",
            "telephone_number": "715-839-4151"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SOUTHARD",
        "first_name": "MARK",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-17",
        "last_updated": "2022-01-05",
        "certification_date": "2022-01-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085B0100X",
            "taxonomy_group": "",
            "desc": "Radiology, Body Imaging",
            "state": "WI",
            "license": "45008",
            "primary": false
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "WI",
            "license": "45008",
            "primary": true
        },
        {
            "code": "2085U0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Ultrasound",
            "state": "WI",
            "license": "45008",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "msouthard83369@ewd.direct.hshs.org",
            "affiliation": "Y",
            "endpointDescription": "Direct Address",
            "affiliationName": "St Vincent Hospital-Hospital Sisters-Third Order of St Francis",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "Direct Address",
            "address_1": "835 S Van Buren St",
            "city": "Green Bay",
            "state": "WI",
            "country_code": "US",
            "postal_code": "543013526",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Eau Claire, WI

Sources for this page

Verify at the official NPI Registry.