Active NPI
Mark R Kroll, D.O.
- Emergency Medicine Physician
- Green Bay, WI
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Emergency Medicine Physician
- License
- 30436-21
- Practice address
- 2253 W Mason St
Green Bay, WI 54303-4706 - Phone
- (920) 327-7000
- NPI assigned
- Aug 13, 2006
- Last updated
- May 19, 2026
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| 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
Enrollment records 1
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
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
| License | State | Type | Specialty |
|---|---|---|---|
| 30436-21 | WI | MD | Family Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Bellin Memorial Hospital Inc | Family Medicine | Current | Accepting new patients |
| Oconto Hospital & Medical Center Inc | Family Medicine | Current | Accepting new patients |
| Oconto Hospital & Medical Center Inc | Family Medicine | Current | Accepting new patients |
| Baycare Clinic LLP | Current | Accepting new patients | |
| Bellin Memorial Hospital Inc | Current | Accepting new patients | |
| Baycare Aurora, LLC | Current | Accepting new patients | |
| Aurora Medical Group, Inc. | Current | Accepting new patients | |
| Aurora Medical Group, Inc. | Family Medicine | Current | Accepting new patients |
| Independent Physicians of Wisconsin, LLC | Current | Accepting new patients | |
| Baycare Clinic LLP | Emergency Medicine | Current | Accepting new patients |
| Independent Physicians of Wisconsin, LLC | Family Medicine | Current | 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
- mark.kroll.1@18758.direct.athenahealth.com
- 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.
-
- Internal Medicine Physician
- Milwaukee, WI
- NPI 1871975920
Family Medicine
-
dba Bellin Health Algoma
- Rural Health Clinic/Center
- Algoma, WI
- NPI 1609838473
-
- Emergency Medicine Physician
- Green Bay, WI
- NPI 1588609648
-
dba Emplify Health Oconto Hospital
- Critical Access Hospital
- Oconto, WI
- NPI 1356373302
-
- Durable Medical Equipment & Medical Supplies
- Oshkosh, WI
- NPI 1326858044
-
- Family Medicine Physician
- Milwaukee, WI
- NPI 1427271378
-
- General Acute Care Hospital
- Green Bay, WI
- NPI 1255387726
-
- Durable Medical Equipment & Medical Supplies
- Manitowoc, WI
- NPI 1134490758
-
dba Bellin Health
- Family Medicine Physician
- Green Bay, WI
- NPI 1033172390
-
dba FMC Pediatrics East
- Pediatrics Physician
- De Pere, WI
- NPI 1235192592
-
- Durable Medical Equipment & Medical Supplies
- Kenosha, WI
- NPI 1588255996
-
dba Bellin Health Suring
- Rural Health Clinic/Center
- Suring, WI
- NPI 1104418037
Family Medicine
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Green Bay, WI
- NPI 1255387726
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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 19, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.