Michael C Willoughby, D.O.

Primary specialty

Cardiovascular Disease PhysicianTaxonomy code 207RC0000X

License

036137782 Issued in IL

Practice address

1000 Harrington St
Mount Clemens, MI 48043-2920

Phone

(586) 493-8000

NPI assigned

Jun 27, 2009

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in MI, IL2 enrollments

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 2

Specialty

Cardiac ElectrophysiologyAlso: Cardiovascular Disease (Cardiology)

Education

Michigan State University College of Osteopathic Medicine, 2009

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Northwestern Medical Faculty FoundationGroup PAC ID 4587576814, 4,386 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Palos Community Hospital Hospital, Palos Heights, IL, CCN 140062
• Northwestern Medicine Central Dupage Hospital Hospital, Winfield, IL, CCN 140242

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: cameron.willoughby.p1@direct.cardofmich.nextgenshare.com
• FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/
• Direct secure messaging: mwilloughby533673@direct.hfhs.org

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.

• Northwestern Medical Faculty Foundation

  • Multi-Specialty Clinic/Center
  • Carol Stream, IL
  • NPI 1346235314
  Medicare reassignment Care Compare group NPD
• Cardiology Associates of Michigan, P.C.

  • Cardiovascular Disease Physician
  • Shelby Township, MI
  • NPI 1114942000
  Medicare reassignment NPD
• McLaren Macomb

  • Internal Medicine Physician
  • Mount Clemens, MI
  • NPI 1396014601
  Medicare reassignment NPD
• McLaren Medical Group

  • Family Medicine Physician
  • Lapeer, MI
  • NPI 1346396066

  Internal Medicine

  Medicare reassignment NPD
• McLaren Medical Group

  • Diagnostic Radiology Physician
  • Lapeer, MI
  • NPI 1073650750
  NPD
• McLaren Oakland

  • Family Medicine Physician
  • Pontiac, MI
  • NPI 1053463778

  Internal Medicine

  NPD
• Northwestern Medical Faculty Foundation

  • Durable Medical Equipment & Medical Supplies
  • Chicago, IL
  • NPI 1417718479
  NPD
• Central Dupage Physician Group

  • Family Medicine Physician
  • Carol Stream, IL
  • NPI 1033149844

  Internal Medicine

  NPD (past)

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

• Central Dupage Hospital Association

  • General Acute Care Hospital
  • Winfield, IL
  • NPI 1003864810
  Care Compare affiliation
• Central Dupage Hospital Association

  • Psychiatric Hospital Unit
  • Winfield, IL
  • NPI 1740230895
  Care Compare affiliation
• Palos Community Hospital

  • Psychiatric Hospital Unit
  • Palos Heights, IL
  • NPI 1184699118
  Care Compare affiliation
• Palos Community Hospital

  • General Acute Care Hospital
  • Palos Heights, IL
  • NPI 1851386692
  Care Compare affiliation

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

{
    "created_epoch": "1246060800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755820800000",
    "number": "1457589582",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1000 HARRINGTON ST",
            "city": "MOUNT CLEMENS",
            "state": "MI",
            "postal_code": "480432920"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1000 HARRINGTON ST",
            "city": "MOUNT CLEMENS",
            "state": "MI",
            "postal_code": "480432920",
            "telephone_number": "586-493-8000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "12251 S 80th Ave Ste 1520",
            "address_purpose": "LOCATION",
            "city": "Palos Heights",
            "state": "IL",
            "postal_code": "604631290",
            "country_code": "US",
            "telephone_number": "708-923-4200",
            "fax_number": "708-923-4201",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WILLOUGHBY",
        "first_name": "MICHAEL",
        "middle_name": "C",
        "name_prefix": "Dr.",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2009-06-27",
        "last_updated": "2025-08-22",
        "certification_date": "2025-08-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MI",
            "license": "5101018254",
            "primary": false
        },
        {
            "code": "207RC0001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Clinical Cardiac Electrophysiology",
            "state": "MI",
            "license": "5101018254",
            "primary": false
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "IL",
            "license": "036137782",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Cheryl Williams
• Nicole Cherie Williams, NPC
• Myele Williamson
• Karen Jane Willis, LMSW
• Miranda L Willis
• Dawn Winchell
• Eden Ray Winden
• Chris Patrick Winn, D.C.
• Erin M Wittwer
• Natalie Christine Wojcickij

• Cardiovascular Disease Physician in Mount Clemens, MI
• Providers in Mount Clemens, MI by specialty
• Cardiovascular Disease Physician in Michigan

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 22, 2025; 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.

Verify at the official NPI Registry.