Individual provider Active NPI

Philip J Kostka, MD

  • Emergency Medicine Physician
  • Weston, WI
National Provider Identifier
1720646409
Registry record updated Aug 20, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
80089-20 Issued in WI
Practice address
3400 Ministry Pkwy
Weston, WI 54476-5220
Phone
(715) 393-1000
NPI assigned
May 29, 2019
Last updated
Aug 20, 2025By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 20, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X 80089-20 WI Primary

Addresses

Primary practice location

3400 Ministry Pkwy
Weston, WI 54476-5220

Mailing address

1000 N Oak Ave
Marshfield, WI 54449-5703
Phone (715) 387-5511

Other practice location 1

900 Illinois Ave
Stevens Point, WI 54481-3114
Phone (715) 346-5000

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address him@marshfieldclinichealthsystem.cernerdirect.com

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
I20220722002077 WI Practitioner - Emergency Medicine 9830570761 Reassigns benefits to 15 organizations

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
Medical College of Wisconsin, 2019
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

900 Illinois Ave
Stevens Point, WI 54481-3114
Phone (715) 346-5000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
87.15 of 100Reported as group
Quality
73.7
Promoting interoperability
100
Improvement activities
40
Cost
76.71

Merit-based Incentive Payment System (MIPS)

Final score
80.58 of 100Reported as group
Quality
55.5
Promoting interoperability
100
Improvement activities
40
Cost
71.46

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Memorial Hospital Inc CurrentSince Aug 8, 2022 Accepting new patients
Lakeview Medical Center Inc of Rice Lake Emergency Medicine CurrentSince Aug 8, 2022 Accepting new patients
MCHS Hospitals Inc Emergency Medicine Current Accepting new patients
Aspirus Merrill Hospital & Clinics, Inc. CurrentSince Aug 20, 2024 Accepting new patients
Aspirus Rhinelander & Tomahawk Hospitals & Clinics, Inc. CurrentSince Aug 20, 2024 Accepting new patients
Aspirus Stevens Point Hospital & Clinics, Inc. CurrentSince Aug 20, 2024 Accepting new patients
The Howard Young Medical Center, Inc. Emergency Medicine CurrentSince Aug 20, 2024 Accepting new patients
Flambeau Hospital Inc CurrentSince Aug 8, 2022 Accepting new patients
Beaver Dam Community Hospitals Inc CurrentSince Aug 8, 2022 Accepting new patients
Aspirus Eagle River Hospital & Clinics, Inc. CurrentSince Aug 20, 2024 Accepting new patients
Memorial Hospital Inc CurrentSince Aug 8, 2022 Accepting new patients
Aspirus Rhinelander & Tomahawk Hospitals & Clinics, Inc. CurrentSince Aug 20, 2024 Accepting new patients
Aspirus Merrill Hospital & Clinics, Inc. CurrentSince Aug 20, 2024 Accepting new patients
Aspirus Stevens Point Hospital & Clinics, Inc. Emergency Medicine Current Accepting new patients
MCHS Hospitals Inc CurrentSince Aug 8, 2022 Accepting new patients
Aspirus Stevens Point Hospital & Clinics, Inc. CurrentSince Aug 20, 2024 Accepting new patients
Aspirus Eagle River Hospital, Inc. Emergency Medicine CurrentSince Aug 20, 2024 Accepting new patients
Flambeau Hospital Inc CurrentSince Aug 8, 2022 Accepting new patients
MCHS Hospitals Inc Emergency Medicine CurrentSince Aug 8, 2022 Accepting new patients
Marshfield Clinic Inc Emergency Medicine CurrentSince Aug 8, 2022 Accepting new patients
MCHS Hospitals Inc Current Accepting new patients
Beaver Dam Community Hospitals Inc CurrentSince Aug 8, 2022 Accepting new patients
Memorial Hospital Inc Past Accepting new patients

Locations

29980 Network Pl
Chicago, IL 60673

705 S University Ave
Beaver Dam, WI 53916
Phone (920) 885-6090

400 W Glen St
Crandon, WI 54520
Phone (715) 478-3318

201 Hospital Rd
Eagle River, WI 54521
Phone (715) 477-3000

3501 Golf Rd
Eau Claire, WI 54701
Phone (715) 858-4200

1000 N Oak Ave
Marshfield, WI 54449
Phone (715) 387-5111

1102 S Center Ave
Merrill, WI 54452
Phone (715) 536-3399

601 S Center Ave
Merrill, WI 54452
Phone (715) 536-5511

N3708 River Ave
Neillsville, WI 54456
Phone (715) 743-3101

2251 N Shore Dr
Ste 100
Rhinelander, WI 54501
Phone (715) 361-2074

1700 W Stout St
Rice Lake, WI 54868
Phone (715) 236-6133

4100 State Highway 66
Stevens Point, WI 54482
Phone (715) 343-7700

900 Illinois Ave
Stevens Point, WI 54481
Phone (715) 342-7500

401 W Mohawk Dr
Ste 100
Tomahawk, WI 54487
Phone (715) 453-7700

3400 Ministry Pkwy
Weston, WI 54476
Phone (715) 393-1000

240 Maple St
Woodruff, WI 54568
Phone (715) 356-8000

Interoperability endpoints

  • Direct secure messaging: him@marshfieldclinichealthsystem.cernerdirect.com
  • Direct secure messaging: philip.kostka@marshfieldclinichealthsystem.cernerdirect.com

Organizations & group practices 23

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 23

Hospital & facility affiliations 3

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": "1559088000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755648000000",
    "number": "1720646409",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1000 N OAK AVE",
            "city": "MARSHFIELD",
            "state": "WI",
            "postal_code": "544495703",
            "telephone_number": "715-387-5511"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3400 MINISTRY PKWY",
            "city": "WESTON",
            "state": "WI",
            "postal_code": "544765220",
            "telephone_number": "715-393-1000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "900 Illinois Ave",
            "address_purpose": "LOCATION",
            "city": "Stevens Point",
            "state": "WI",
            "postal_code": "544813114",
            "country_code": "US",
            "telephone_number": "715-346-5000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KOSTKA",
        "first_name": "PHILIP",
        "middle_name": "J",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-05-29",
        "last_updated": "2025-08-20",
        "certification_date": "2025-08-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "WI",
            "license": "80089-20",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "him@marshfieldclinichealthsystem.cernerdirect.com",
            "affiliation": "N",
            "address_1": "3400 Ministry Pkwy",
            "city": "Weston",
            "state": "WI",
            "country_code": "US",
            "postal_code": "544765220",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Weston, WI

Sources for this page

Verify at the official NPI Registry.