Individual provider Active NPI

Mark R Kroll, D.O.

  • Emergency Medicine Physician
  • Green Bay, WI
National Provider Identifier
1124030499
Registry record updated May 19, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
30436-21 Issued in WI
Practice address
2253 W Mason St
Green Bay, WI 54303-4706
Phone
(920) 327-7000
NPI assigned
Aug 13, 2006
Last updated
May 19, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 19, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X 30436-21 WI
Emergency Medicine Physician 207P00000X 30436-21 WI Primary

Addresses

Primary practice location

2253 W Mason St
Green Bay, WI 54303-4706

Mailing address

2864 Sussex Rd
Green Bay, WI 54311-7475
Phone (920) 680-8000

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address mkroll57617@direct.myadvocateaurora.org

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
I20081110000356 WI Practitioner - Family Practice 5395804025 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Family Practice
Education
Des Moines University of Osteopathic Medicine and Health Sciences, 1988
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Independent Physicians of Wisconsin LLCGroup PAC ID 3274842034, 42 clinicians
Bellin Memorial Hospital IncGroup PAC ID 8820900749, 685 clinicians

Practice addresses (Care Compare)

125 School Creek TRL
Luxemburg, WI 54217-1095
Phone (920) 545-5109

3263 Eaton Rd
Green Bay, WI 54311-6830
Phone (920) 433-6700

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
30436-21WIMDFamily Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Bellin Memorial Hospital Inc Family Medicine CurrentSince Mar 3, 2026 Accepting new patients
Oconto Hospital & Medical Center Inc Family Medicine CurrentSince Mar 3, 2026 Accepting new patients
Oconto Hospital & Medical Center Inc Family Medicine CurrentSince Mar 3, 2026 Accepting new patients
Baycare Clinic LLP CurrentSince Feb 1, 2020 Accepting new patients
Bellin Memorial Hospital Inc CurrentSince Mar 3, 2026 Accepting new patients
Baycare Aurora, LLC CurrentSince Mar 1, 2020 Accepting new patients
Aurora Medical Group, Inc. CurrentSince Dec 1, 2008 Accepting new patients
Aurora Medical Group, Inc. Family Medicine CurrentSince Dec 1, 2008 Accepting new patients
Independent Physicians of Wisconsin, LLC CurrentSince Jun 1, 2022 Accepting new patients
Baycare Clinic LLP Emergency Medicine CurrentSince Feb 1, 2020 Accepting new patients
Independent Physicians of Wisconsin, LLC Family Medicine CurrentSince Jun 1, 2022 Accepting new patients

Locations

1035 Kepler Dr
Green Bay, WI 54311

108 Packerland Dr
Ste D1
Green Bay, WI 54303
Phone (920) 545-5109

123 N Military Ave
Green Bay, WI 54303
Phone (920) 494-3421

1630 Commanche Ave
Green Bay, WI 54313
Phone (920) 430-4700

2253 W Mason St
Green Bay, WI 54303
Phone (920) 327-7000

2581 Development Dr
Green Bay, WI 54311
Phone (920) 347-0400

2733 S Ridge Rd
Green Bay, WI 54304
Phone (920) 497-6200

2845 Greenbrier Rd
Green Bay, WI 54311
Phone (920) 288-3388

2845 Greenbrier Rd
#1
Green Bay, WI 54311
Phone (920) 288-8100

3263 Eaton Rd
Green Bay, WI 54311
Phone (920) 433-6000

4070 Equestrian Ln
Green Bay, WI 54229
Phone (920) 866-6100

125 School Creek Trl
Luxemburg, WI 54217
Phone (920) 545-5109

2820 Roosevelt Rd
Marinette, WI 54143
Phone (715) 330-6171

1020 N 12th St
Milwaukee, WI 53233
Phone (414) 219-3056

5434 W Capitol Dr
Ste 3
Milwaukee, WI 53216
Phone (414) 217-1229

820 Arbutus Ave
Oconto, WI 54153
Phone (920) 835-1100

108 S 10th Ave
Sturgeon Bay, WI 54235
Phone (920) 746-7955

Interoperability endpoints

  • Direct secure messaging: mark.kroll.1@18758.direct.athenahealth.com
  • Direct secure messaging: mkroll57617@direct.myadvocateaurora.org

Organizations & group practices 13

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 13

Hospital & facility affiliations 1

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": "1155427200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779148800000",
    "number": "1124030499",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2864 SUSSEX RD",
            "city": "GREEN BAY",
            "state": "WI",
            "postal_code": "543117475",
            "telephone_number": "920-680-8000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2253 W MASON ST",
            "city": "GREEN BAY",
            "state": "WI",
            "postal_code": "543034706",
            "telephone_number": "920-327-7000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KROLL",
        "first_name": "MARK",
        "middle_name": "R",
        "name_prefix": "Dr.",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-08-13",
        "last_updated": "2026-05-19",
        "certification_date": "2026-05-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "WI",
            "license": "30436-21",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "WI",
            "license": "30436-21",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mkroll57617@direct.myadvocateaurora.org",
            "affiliation": "N",
            "address_1": "2253 W Mason St",
            "city": "Green Bay",
            "state": "WI",
            "country_code": "US",
            "postal_code": "543034706",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Green Bay, WI

Sources for this page

Verify at the official NPI Registry.