Individual provider Active NPI

Michael F Maguire, M.D.

  • Critical Care Medicine (Internal Medicine) Physician
  • Appleton, WI
National Provider Identifier
1124186721
Registry record updated Apr 14, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Critical Care Medicine (Internal Medicine) PhysicianTaxonomy code 207RC0200X
License
36569-020 Issued in WI
Practice address
2500 E Capitol Drive
Suite 1700
Appleton, WI 54911
Phone
(920) 734-9600
Fax
(920) 734-4773
NPI assigned
Dec 5, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 14, 2026

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

Specialties & licenses 5

Specialty (taxonomy)CodeLicenseStatePrimary
Critical Care Medicine (Internal Medicine) Physician 207RC0200X 36569 WI
Sleep Medicine (Internal Medicine) Physician 207RS0012X 36569 WI
Pulmonary Disease Physician 207RP1001X 36569-020 WI
Pulmonary Disease Physician 207RP1001X 36569 WI
Critical Care Medicine (Internal Medicine) Physician 207RC0200X 36569-020 WI Primary

Addresses

Primary practice location

2500 E Capitol Drive
Suite 1700
Appleton, WI 54911

Mailing address

200 Theda Clark Medical PLZ
Suite 480
Neenah, WI 54956-2721
Phone (920) 729-0608

Other identifiers 1

IdentifierTypeStateIssuer
32116400MedicaidWI

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
I20050510001157 WI Practitioner - Pulmonary DiseasePractitioner - Critical Care (Intensivists)Practitioner - Other (Physician) 8729028634 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Pulmonary DiseaseAlso: Critical Care (Intensivists)
Education
Loyola University of Chicago, Stritch School of Medicine, 1989
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Fox Valley Pulmonary Medicine SCGroup PAC ID 6002707320, 12 clinicians

Practice addresses (Care Compare)

130 2ND St
Neenah, WI 54956-2883
Phone (920) 358-1139

1818 N Meade St
Appleton, WI 54911-3454
Phone (920) 358-1139

200 Theda Clark Medical PLZ
Suite 480
Neenah, WI 54956-2790
Phone (920) 358-1139

2500 E Capitol Dr
Suite 2600
Appleton, WI 54911-8735
Phone (920) 358-1139

800 Riverside Dr
Waupaca, WI 54981-1943
Phone (920) 358-1139

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
36569WIMDCritical Care Medicine (Internal Medicine) Physician
36569-020WIMDCritical Care Medicine (Internal Medicine) Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Thedacare, Incorporated CurrentSince May 1, 2020 Accepting new patients
Fox Valley Pulmonary Medicine, LLC Current Accepting new patients
Fox Valley Pulmonary Medicine, S.C. Critical Care Medicine CurrentSince Oct 1, 1999 Accepting new patients

Locations

2500 E Capitol Dr
Ste 1700
Appleton, WI 54911
Phone (920) 734-9600

4480 W Spencer St
Appleton, WI 54914
Phone (920) 738-4800

2500 E Capitol Dr
Ste 2600
Appleton, WI 54911
Phone (920) 358-1139

200 Theda Clark Medical Plz
Ste 480
Neenah, WI 54956
Phone (920) 729-0608

600 N Westhaven Dr
Oshkosh, WI 54904
Phone (920) 237-5000

2500 Garfield St
Two Rivers, WI 54241
Phone (920) 734-9600

Interoperability endpoints

  • Direct secure messaging: mmaguire18322@direct.thedacare.org

Organizations & group practices 3

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.

Hospital & facility affiliations 18

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

View all 18

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1165276800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776124800000",
    "number": "1124186721",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "200 THEDA CLARK MEDICAL PLZ",
            "address_2": "SUITE 480",
            "city": "NEENAH",
            "state": "WI",
            "postal_code": "549562721",
            "telephone_number": "920-729-0608",
            "fax_number": "920-729-2902"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2500 E CAPITOL DRIVE",
            "address_2": "SUITE 1700",
            "city": "APPLETON",
            "state": "WI",
            "postal_code": "54911",
            "telephone_number": "920-734-9600",
            "fax_number": "920-734-4773"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MAGUIRE",
        "first_name": "MICHAEL",
        "middle_name": "F",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-12-05",
        "last_updated": "2026-04-14",
        "certification_date": "2026-04-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "WI",
            "license": "36569",
            "primary": false
        },
        {
            "code": "207RS0012X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Sleep Medicine",
            "state": "WI",
            "license": "36569",
            "primary": false
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "WI",
            "license": "36569-020",
            "primary": false
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "WI",
            "license": "36569",
            "primary": false
        },
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "WI",
            "license": "36569-020",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "32116400",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Appleton, WI

Sources for this page

Verify at the official NPI Registry.