Individual provider Active NPI

Kim C Mackey, MD

  • Obstetrics & Gynecology Physician
  • Marshfield, WI
National Provider Identifier
1285603431
Registry record updated May 29, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X
License
43887 Issued in WI
Practice address
1000 N Oak Ave
Marshfield, WI 54449-5703
Phone
(715) 387-5511
NPI assigned
Mar 17, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 29, 2026

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Obstetrics & Gynecology Physician 207V00000X 43887 WI Primary
Obstetrics & Gynecology Physician 207V00000X ME180291 FL
Obstetrics & Gynecology Physician 207V00000X MD61604924 WA
Hospitalist Physician 208M00000X MD61604924 WA

Addresses

Primary practice location

1000 N Oak Ave
Marshfield, WI 54449-5703

Mailing address

1700 Tuttle St
Baraboo, WI 53913-3319
Phone (608) 355-3800

Other practice location 1

22 Roulston Rd
Windham, NH 03087-1209
Phone (608) 575-4519

Other practice location 2

400 S 43rd St
Renton, WA 98055-5714
Phone (425) 690-1000

Other identifiers 2

IdentifierTypeStateIssuer
1285603431MedicaidWI
2298975MedicaidWA

Electronic endpoints 5

TypeEndpointUseAffiliation
Direct Messaging Address KMACKEY261561@DIRECT-EHR-SSMHC.COM Direct Southwest Health Center, Inc
FHIR URL https://fhir.ssmhc.com/fhir/api/FHIR/DSTU2/ Other
Direct Messaging Address kmackey261561@direct-ehr-ssmhc.com Direct
Direct Messaging Address kmackey261561@direct-ehr-ssmhc.com Direct
FHIR URL https://fhir.ssmhc.com/fhir/api/FHIR/DSTU2/ Other

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WI, MN, WA, NJ, WV, MT, FL, IN8 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 8

Enrollment IDStateProvider typePAC IDDetails
I20040212000090 WI Practitioner - Obstetrics/Gynecology 4981598604 Reassigns benefits to 14 organizations
I20241004000383 MN Practitioner - Obstetrics/Gynecology 4981598604 Reassigns benefits to 1 organization
I20241010004178 WA Practitioner - Obstetrics/Gynecology 4981598604 Reassigns benefits to 2 organizations
I20250128001877 NJ Practitioner - Obstetrics/Gynecology 4981598604 Reassigns benefits to 1 organization
I20250430000312 WV Practitioner - Obstetrics/Gynecology 4981598604 Reassigns benefits to 1 organization
I20251029003127 MT Practitioner - Obstetrics/Gynecology 4981598604 Reassigns benefits to 1 organization
I20260429000282 FL Practitioner - Obstetrics/Gynecology 4981598604 Reassigns benefits to 1 organization
I20260508003571 IN Practitioner - Obstetrics/GynecologyPractitioner - Hospitalist 4981598604 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Obstetrics/Gynecology
Education
Other, 1995
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
City Hospital IncGroup PAC ID 3375444524, 155 clinicians
Valley Medical Group-RentonGroup PAC ID 4183753965, 419 clinicians
Billings ClinicGroup PAC ID 6002993516, 814 clinicians

Practice addresses (Care Compare)

2500 Hospital Dr
Martinsburg, WV 25401-3402
Phone (304) 260-1443

400 S 43Rd St
Renton, WA 98055-5714
Phone (425) 228-3450

801 N 29TH St
Billings, MT 59101-0905
Phone (406) 238-2500

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
ME180291FLMDObstetrics & Gynecology Physician
43887WIMDObstetrics & Gynecology Physician
MD61604924WAMDHospitalist Physician

Practice roles

OrganizationSpecialtyStatusNew patients
OB Hospitalist Services New Jersey, PA Obstetrics & Gynecology CurrentSince Aug 21, 2024 Accepting new patients
Centracare Clinic CurrentSince Sep 1, 2024 Accepting new patients
Dean Health Systems, Inc Hospitalist CurrentSince Jan 28, 2021 Accepting new patients
Froedtert &the Medical College of Wisconsin Community Physicians, Inc. CurrentSince Oct 10, 2023 Accepting new patients
Southwest Health Center, Inc. CurrentSince Sep 16, 2013 Accepting new patients
City Hospital Inc Current Accepting new patients
Obhg Wisconsin, S.C. Obstetrics & Gynecology CurrentSince Mar 16, 2024 Accepting new patients
City Hospital, Inc. Obstetrics & Gynecology CurrentSince Jun 5, 2025 Accepting new patients
Obhg Washington, PC Obstetrics & Gynecology CurrentSince Aug 29, 2024 Accepting new patients
Southwest Health Center, Inc CurrentSince Sep 16, 2013 Accepting new patients
Reedsburg Area Medical Center, Inc. CurrentSince Dec 1, 2023 Accepting new patients
Dean Health Systems, Inc. CurrentSince Jan 28, 2021 Accepting new patients
Billings Clinic CurrentSince Oct 15, 2025 Accepting new patients
Billings Clinic Current Accepting new patients
Centracare Clinic Current Accepting new patients
Froedtert &the Medical College of Wisconsin Community Physicians, Inc. CurrentSince Oct 10, 2023 Accepting new patients
Billings Clinic CurrentSince Oct 15, 2025 Accepting new patients
Valley Medical Group-Renton Hospitalist CurrentSince Jan 4, 2026 Accepting new patients
St Luke'S Methodist Hospital Current Accepting new patients
Reedsburg Area Medical Center, Inc. Current Accepting new patients
Reedsburg Area Medical Center Inc CurrentSince Dec 1, 2023 Accepting new patients
Billings Clinic Past Accepting new patients
St. Cloud Hospital Past Accepting new patients
Centracare Clinic Past Accepting new patients
Providence Health & Services-Wa Past Accepting new patients
City Hospital, Inc Past Accepting new patients

Locations (25 of 27)

1200 6th Ave N
Saint Cloud, MN 56303
Phone (320) 252-3342

801 N 29th St
Billings, MT 59101
Phone (406) 238-2210

2800 10th Ave N
Billings, MT 59101
Phone (406) 248-3290

1 Clara Maass Dr
Belleville, NJ 07109
Phone (973) 450-2008

718 Teaneck Rd
Teaneck, NJ 07666
Phone (201) 833-3232

1505 W Sherman Ave
Vineland, NJ 08360
Phone (856) 451-6600

777 Lowndes Hill Rd
Bldg 1
Greenville, SC 29607
Phone (864) 908-3736

16850 SE 272nd St
Ste 100
Covington, WA 98042
Phone (253) 395-1971

1700 13th St
Everett, WA 98201
Phone (425) 252-0895

400 S 43rd St
Renton, WA 98055
Phone (425) 228-3450

1800 NW Myhre Rd
Silverdale, WA 98383
Phone (360) 337-8800

1626 Tuttle St
Baraboo, WI 53913
Phone (608) 355-2033

1700 Tuttle St
Baraboo, WI 53913
Phone (608) 355-3800

W168N11237 Western Ave
Germantown, WI 53022
Phone (262) 253-5060

600 Highland Ave
Madison, WI 53792
Phone (608) 263-0325

N74W12501 Leatherwood Ct
Menomonee Falls, WI 53051
Phone (414) 454-4744

W180N8000 Town Hall Rd
Menomonee Falls, WI 53051
Phone (262) 255-2500

2323 N Lake Dr
Milwaukee, WI 53211
Phone (414) 291-1000

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

515 22nd Ave
Monroe, WI 53566
Phone (608) 324-1000

1400 Eastside Rd
Platteville, WI 53818
Phone (608) 342-4712

1450 Eastside Rd
Platteville, WI 53818
Phone (608) 348-2331

2000 N Dewey Ave
Reedsburg, WI 53959
Phone (608) 524-6487

9200 W Wisconsin Ave
Wauwatosa, WI 53226
Phone (414) 259-3000

1155 N Mayfair Rd
Wauwatosa, WI 53226
Phone (414) 955-5990

Interoperability endpoints

  • Direct secure messaging: kmackey261561@direct-ehr-ssmhc.com
  • Direct secure messaging: kmackey264027@direct.unitypoint.org
  • Direct secure messaging: kmackey836864@direct.centracare.com

Organizations & group practices 36

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 36

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1142553600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780012800000",
    "number": "1285603431",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1700 TUTTLE ST",
            "city": "BARABOO",
            "state": "WI",
            "postal_code": "539133319",
            "telephone_number": "608-355-3800",
            "fax_number": "608-355-7001"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1000 N OAK AVE",
            "city": "MARSHFIELD",
            "state": "WI",
            "postal_code": "544495703",
            "telephone_number": "715-387-5511"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "22 Roulston Rd",
            "address_purpose": "LOCATION",
            "city": "Windham",
            "state": "NH",
            "postal_code": "030871209",
            "country_code": "US",
            "telephone_number": "608-575-4519",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "400 S 43rd St",
            "address_purpose": "LOCATION",
            "city": "Renton",
            "state": "WA",
            "postal_code": "980555714",
            "country_code": "US",
            "telephone_number": "425-690-1000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MACKEY",
        "first_name": "KIM",
        "middle_name": "C",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-03-17",
        "last_updated": "2026-05-29",
        "certification_date": "2026-05-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "WI",
            "license": "43887",
            "primary": true
        },
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "FL",
            "license": "ME180291",
            "primary": false
        },
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "WA",
            "license": "MD61604924",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "WA",
            "license": "MD61604924",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1285603431",
            "state": "WI"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2298975",
            "state": "WA"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "KMACKEY261561@DIRECT-EHR-SSMHC.COM",
            "affiliation": "Y",
            "affiliationName": "Southwest Health Center, Inc",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "KMACKEY261561@DIRECT-EHR-SSMHC.COM",
            "address_1": "1450 Eastside Rd",
            "city": "Platteville",
            "state": "WI",
            "country_code": "US",
            "postal_code": "538189800",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://fhir.ssmhc.com/fhir/api/FHIR/DSTU2/",
            "affiliation": "N",
            "use": "OTHER",
            "useDescription": "Other",
            "useOtherDescription": "FHIR API",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CCD",
            "address_1": "1626 Tuttle St",
            "city": "Baraboo",
            "state": "WI",
            "country_code": "US",
            "postal_code": "539131501",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "kmackey261561@direct-ehr-ssmhc.com",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "kmackey261561@direct-ehr-ssmhc.com",
            "address_1": "1626 Tuttle St",
            "city": "Baraboo",
            "state": "WI",
            "country_code": "US",
            "postal_code": "539131501",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "kmackey261561@direct-ehr-ssmhc.com",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "kmackey261561@direct-ehr-ssmhc.com",
            "address_1": "1700 Tuttle St.",
            "city": "Baraboo",
            "state": "WI",
            "country_code": "US",
            "postal_code": "539139800",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://fhir.ssmhc.com/fhir/api/FHIR/DSTU2/",
            "affiliation": "N",
            "use": "OTHER",
            "useDescription": "Other",
            "useOtherDescription": "FHIR API",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CCD",
            "address_1": "1700 Tuttle St.",
            "city": "Baraboo",
            "state": "WI",
            "country_code": "US",
            "postal_code": "539139800",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Marshfield, WI

Sources for this page

Verify at the official NPI Registry.