Active NPI
Mark Riedy, MD
- Critical Care Medicine (Internal Medicine) Physician
- Green Bay, WI
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Critical Care Medicine (Internal Medicine) Physician
- License
- 54662
- Practice address
- 2845 Greenbrier Rd
Suite 210
Green Bay, WI 54311-6519 - Phone
- (920) 288-8100
- NPI assigned
- Jul 7, 2005
- Last updated
- Feb 5, 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 |
|---|---|---|---|---|
| Critical Care Medicine (Internal Medicine) Physician | 207RC0200X | 54662 | WI | Primary |
| Critical Care Medicine (Internal Medicine) Physician | 207RC0200X | 22748 | SC |
Addresses
Primary practice location
2845 Greenbrier Rd
Suite 210
Green Bay, WI 54311-6519
Mailing address
2845 Greenbrier Rd
Suite 210
Green Bay, WI 54311-6519
Phone (920) 288-8100
Other identifiers 9
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 100017364 | Medicaid | WI | |
| 8902914 | Medicaid | NC | |
| GP3912 | Other | SC | MEDICAID GROUP |
| 02914 | Other | NC | BCBS |
| GP1062 | Medicaid | SC | |
| GP4306 | Other | SC | MEDICAID GROUP |
| 227481 | Medicaid | SC | |
| CM7718 | Other | RAILROAD MEDICARE | |
| H503647762 | Other | SC | H503647762 |
Electronic endpoints 2
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| FHIR URL | https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/ | ||
| Direct Messaging Address | mriedy68185@direct.myadvocateaurora.org | Direct |
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
- Critical Care (Intensivists)
- Education
- University of South Carolina School of Medicine, 1994
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
2253 W Mason St
Green Bay, WI 54303-4706
Phone (920) 327-7246
2845 Greenbrier Rd
Green Bay, WI 54311-6519
Phone (920) 288-8000
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Baycare Aurora, LLC | Critical Care Medicine | Current | Accepting new patients |
| Aurora Medical Group, Inc. | Current | Accepting new patients | |
| Aurora Medical Group, Inc. | Current | Accepting new patients | |
| Mercy Health System Corporation | Current | Accepting new patients | |
| Mercy Health System Corporation | Current | Accepting new patients |
Locations
29624 Network Pl
Chicago, IL 60673
Phone (608) 741-7652
2253 W Mason St
Green Bay, WI 54303
Phone (920) 327-7000
2845 Greenbrier Rd
#1
Green Bay, WI 54311
Phone (920) 288-8100
2845 Greenbrier Rd
Ste 210
Green Bay, WI 54311
Phone (920) 288-8100
1000 Mineral Point Ave
Janesville, WI 53548
Phone (608) 261-6868
1020 N 12th St
Milwaukee, WI 53233
Phone (414) 219-3056
2700 W 9th Ave
Oshkosh, WI 54904
Phone (920) 223-0220
Interoperability endpoints
- mriedy68185@direct.myadvocateaurora.org
Organizations & group practices 5
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.
-
- Certified Registered Nurse Anesthetist
- Milwaukee, WI
- NPI 1427271378
-
dba MHS Physician Services
- Multi-Specialty Clinic/Center
- Janesville, WI
- NPI 1598718603
-
- Durable Medical Equipment & Medical Supplies
- Oshkosh, WI
- NPI 1326858044
-
dba Mercy Walworth Hospital and Medical Center
- Critical Access Hospital
- Lake Geneva, WI
- NPI 1699728550
Hospital & facility affiliations 5
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Two Rivers, WI
- NPI 1477508687
-
- General Acute Care Hospital
- Green Bay, WI
- NPI 1255387726
-
dba Door County Medical Center
- Critical Access Hospital
- Sturgeon Bay, WI
- NPI 1093743874
-
dba Door County Medical Center Lab
- Clinical Medical Laboratory
- Sturgeon Bay, WI
- NPI 1811090285
Hospital
-
dba Aurora at Home
- Community Based Hospice Care Agency
- Green Bay, WI
- NPI 1417110214
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1120694400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1770249600000",
"number": "1780681445",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2845 GREENBRIER RD",
"address_2": "SUITE 210",
"city": "GREEN BAY",
"state": "WI",
"postal_code": "543116519",
"telephone_number": "920-288-8100"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2845 GREENBRIER RD",
"address_2": "SUITE 210",
"city": "GREEN BAY",
"state": "WI",
"postal_code": "543116519",
"telephone_number": "920-288-8100"
}
],
"practiceLocations": [],
"basic": {
"last_name": "RIEDY",
"first_name": "MARK",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2005-07-07",
"last_updated": "2026-02-05",
"certification_date": "2026-02-05",
"status": "A"
},
"taxonomies": [
{
"code": "207RC0200X",
"taxonomy_group": "",
"desc": "Internal Medicine, Critical Care Medicine",
"state": "WI",
"license": "54662",
"primary": true
},
{
"code": "207RC0200X",
"taxonomy_group": "",
"desc": "Internal Medicine, Critical Care Medicine",
"state": "SC",
"license": "22748",
"primary": false
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "100017364",
"state": "WI"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "8902914",
"state": "NC"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "MEDICAID GROUP",
"identifier": "GP3912",
"state": "SC"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "BCBS",
"identifier": "02914",
"state": "NC"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "GP1062",
"state": "SC"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "MEDICAID GROUP",
"identifier": "GP4306",
"state": "SC"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "227481",
"state": "SC"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "RAILROAD MEDICARE",
"identifier": "CM7718",
"state": null
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "H503647762",
"identifier": "H503647762",
"state": "SC"
}
],
"endpoints": [
{
"endpointType": "FHIR",
"endpointTypeDescription": "FHIR URL",
"endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
"affiliation": "N",
"address_1": "2845 Greenbrier Rd",
"address_2": "Suite 210",
"city": "Green Bay",
"state": "WI",
"country_code": "US",
"postal_code": "543116519",
"country_name": "United States",
"address_type": "DOM"
},
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "mriedy68185@direct.myadvocateaurora.org",
"affiliation": "N",
"use": "DIRECT",
"useDescription": "Direct",
"address_1": "2845 Greenbrier Rd",
"address_2": "Suite 210",
"city": "Green Bay",
"state": "WI",
"country_code": "US",
"postal_code": "543116519",
"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 Feb 5, 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.