Philip J Kostka, MD – Emergency Medicine Physician

Key facts

NPI: 1720646409
Entity type: Individual (NPI type 1)
Primary specialty: Emergency Medicine Physician 207P00000X
License: 80089-20 (WI)
Practice address: 3400 Ministry Pkwy
Weston, WI 54476-5220
Phone: (715) 393-1000
NPI assigned: May 29, 2019
Sex: Male
Sole proprietor: No

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 and National Provider Directory roles.

Aspirus Stevens Point Hospital & Clinics, Inc. General Acute Care Hospital · Stevens Point, WI · NPI 1538112230

Medicare reassignment Care Compare group NPD EMERGENCY MEDICINE · WI
Aspirus Eagle River Hospital & Clinics, Inc. Critical Access Hospital · Eagle River, WI · NPI 1346204385

Medicare reassignment NPD WI
Aspirus Merrill Hospital & Clinics, Inc. Critical Access Hospital · Merrill, WI · NPI 1124084678

Medicare reassignment NPD WI
Aspirus Rhinelander & Tomahawk Hospitals & Clinics, Inc. Clinic/Center · Stevens Point, WI · NPI 1144991340

Medicare reassignment NPD WI
Beaver Dam Community Hospitals Inc Clinic/Center · Beaver Dam, WI · NPI 1972188555

Medicare reassignment NPD WI
Flambeau Hospital Inc Clinic/Center · Park Falls, WI · NPI 1194317966

Medicare reassignment NPD WI
Flambeau Hospital Inc Critical Access Hospital · Park Falls, WI · NPI 1700963048

Medicare reassignment NPD WI
Lakeview Medical Center Inc of Rice Lake Clinic/Center · Rice Lake, WI · NPI 1093201832

Medicare reassignment NPD WI
Marshfield Clinic Inc Clinic/Center · Marshfield, WI · NPI 1952347981

Medicare reassignment NPD WI
MCHS Hospitals Inc Clinic/Center · Marshfield, WI · NPI 1093221434

Medicare reassignment NPD EMERGENCY MEDICINE · WI
MCHS Hospitals Inc Critical Access Hospital · Ladysmith, WI · NPI 1952890873

Medicare reassignment NPD WI
Memorial Hospital Inc Critical Access Hospital · Neillsville, WI · NPI 1346239373

Medicare reassignment NPD WI
The Howard Young Medical Center, Inc. General Acute Care Hospital · Woodruff, WI · NPI 1184673352

Medicare reassignment NPD EMERGENCY MEDICINE · WI
Aspirus Eagle River Hospital, Inc. Emergency Medicine Physician · Eagle River, WI · NPI 1699728915

NPD EMERGENCY MEDICINE
Aspirus Merrill Hospital & Clinics, Inc. Medicare Defined Swing Bed Hospital Unit · Merrill, WI · NPI 1407096266

NPD
Aspirus Rhinelander & Tomahawk Hospitals & Clinics, Inc. General Acute Care Hospital · Rhinelander, WI · NPI 1356391247

NPD
Aspirus Stevens Point Hospital & Clinics, Inc. General Practice Physician · Stevens Point, WI · NPI 1184082745

NPD
Aspirus Stevens Point Hospital & Clinics, Inc. Clinic/Center · Stevens Point, WI · NPI 1679706022

NPD
Beaver Dam Community Hospitals Inc Pharmacy · Beaver Dam, WI · NPI 1295771780

NPD
MCHS Hospitals Inc Durable Medical Equipment & Medical Supplies · Eau Claire, WI · NPI 1558230847

NPD
MCHS Hospitals Inc Clinic/Center · Minocqua, WI · NPI 1942854716

NPD
Memorial Hospital Inc Clinic/Center · Neillsville, WI · NPI 1033701800

NPD
Memorial Hospital Inc Rural Health Clinic/Center · Neillsville, WI · NPI 1619966793

NPD (past)

Hospital & facility affiliations 3

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

Aspirus Stevens Point Hospital & Clinics, Inc. General Practice Physician · Stevens Point, WI · NPI 1184082745

Care Compare affiliation Hospital
Aspirus Stevens Point Hospital & Clinics, Inc. General Acute Care Hospital · Stevens Point, WI · NPI 1538112230

Care Compare affiliation Hospital
MCHS Hospitals Inc General Acute Care Hospital · Weston, WI · NPI 1902437650

Care Compare affiliation Hospital

Medicare Care Compare profile

Specialty: Emergency Medicine
Education: Medical College of Wisconsin, 2019
Medicare assignment: Accepts the Medicare-approved amount as payment in full
Group practices: Aspirus Stevens Point Hospital and Clinics, Inc. (136 clinicians)

Practice addresses (Care Compare)

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

Hospital & facility affiliations

Aspirus Stevens Point Hospital & Clinics, Inc. Hospital · Stevens Point, WI · CCN 520002
Marshfield Medical Center - Weston Hospital · Weston, WI · CCN 520202

Merit-based Incentive Payment System (MIPS)

Final score: 87.15 of 100 (group)
Quality: 73.7
Promoting interoperability: 100
Improvement activities: 40
Cost: 76.71

Merit-based Incentive Payment System (MIPS)

Final score: 80.58 of 100 (group)
Quality: 55.5
Promoting interoperability: 100
Improvement activities: 40
Cost: 71.46

Medicare participation

Medicare fee-for-service enrollment: Enrolled in WI
Eligible to order & refer: Part B services: Yes · DME: Yes · Home health: Yes · Power mobility devices: Yes · Hospice: Yes

Medicare enrollment records

Enrollment ID	State	Provider type	PAC ID	Details
I20220722002077	WI	Practitioner - Emergency Medicine	9830570761	Reassigns benefits to 15 organizations

National Provider Directory

Medicare enrollment (NPD): Yes
Credentials: Doctor of Medicine

State licenses

License	State	Type	Specialty
80089-20	WI	MD	Emergency Medicine Physician

Practice roles

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

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

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

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

Specialties & licenses

Specialty (taxonomy)	Code	License	State	Primary
Emergency Medicine Physician	207P00000X	80089-20	WI	Yes

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

Type	Endpoint	Use	Affiliation
Direct Messaging Address	him@marshfieldclinichealthsystem.cernerdirect.com

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API JSON format, last updated by the provider on Aug 20, 2025.

{
    "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

All providers in Weston, WI · Emergency Medicine Physician in Wisconsin

Sources for this page

NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Record last updated by the provider on Aug 20, 2025. Information in NPPES is self-reported and not verified by CMS.
NUCC Health Care Provider Taxonomy: specialty names.
Medicare Fee-For-Service Public Provider Enrollment (CMS/PECOS): enrollments, PAC IDs and benefit reassignments.
Order and Referring (CMS).
Medicare Care Compare provider data (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.