William Edward Harder, D.O.

Primary specialty

Cardiovascular Disease PhysicianTaxonomy code 207RC0000X

License

5101021792 Issued in MI

Practice address

6889 Highland Rd
Waterford, MI 48327-1658

Phone

(248) 666-5200

Fax

(248) 666-5069

NPI assigned

May 19, 2015

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in MI

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

Specialty

Cardiovascular Disease (Cardiology)

Education

Michigan State University College of Osteopathic Medicine, 2015

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Midwest Cardiology Associates PCGroup PAC ID 1759379860, 4 clinicians

Heart Care PCGroup PAC ID 2668363268, 4 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Trinity Health Oakland Hospital Hospital, Pontiac, MI, CCN 230029
• Garden City Hospital Hospital, Garden City, MI, CCN 230244
• Beaumont Hospital - Dearborn Hospital, Dearborn, MI, CCN 230020
• Corewell Health Wayne Hospital Hospital, Wayne, MI, CCN 230142

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: william.harder.1@20439.direct.athenahealth.com
• Direct secure messaging: wharder@mca.ssdirect.aprima.com
• FHIR API: https://api.platform.athenahealth.com/20439/brand/1/csg/1/fhir/r4

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.

• Heart Care PC

  • Cardiovascular Disease Physician
  • Waterford, MI
  • NPI 1518058379
  Medicare reassignment Care Compare group NPD
• Midwest Cardiology Associates, PC

  • Cardiovascular Disease Physician
  • Garden City, MI
  • NPI 1952317646
  Medicare reassignment Care Compare group NPD
• Iha Health Services Corporation

  • Obstetrics & Gynecology Physician
  • Canton, MI
  • NPI 1457408965
  Medicare reassignment NPD
• Heart Care PC

  • Adult Health Nurse Practitioner
  • Waterford, MI
  • NPI 1437305620

  Cardiovascular Disease

  NPD
• Iha Health Service Corporation

  • Obstetrics & Gynecology Physician
  • Ypsilanti, MI
  • NPI 1831053701
  NPD
• Iha Health Services Corporation

  • Hospitalist Physician
  • Ypsilanti, MI
  • NPI 1306121405
  NPD

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

• Oakwood Healthcare Inc

  • Community Health Clinic/Center
  • Dearborn, MI
  • NPI 1790414670

  Hospital

  Care Compare affiliation
• Oakwood Healthcare, Inc.

  • General Acute Care Hospital
  • Wayne, MI
  • NPI 1295785285
  Care Compare affiliation
• Oakwood Healthcare, Inc.

  • General Acute Care Hospital
  • Dearborn, MI
  • NPI 1740230119
  Care Compare affiliation
• Prime Healthcare Services - Garden City LLC

  • General Acute Care Hospital
  • Garden City, MI
  • NPI 1043625940
  Care Compare affiliation
• St Joseph Mercy Hospital-SMHC

  • General Acute Care Hospital
  • Pontiac, MI
  • NPI 1053356352
  Care Compare affiliation

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

{
    "created_epoch": "1431993600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777507200000",
    "number": "1225417660",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6889 HIGHLAND RD",
            "city": "WATERFORD",
            "state": "MI",
            "postal_code": "483271658",
            "telephone_number": "248-666-5200",
            "fax_number": "248-666-5069"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6889 HIGHLAND RD",
            "city": "WATERFORD",
            "state": "MI",
            "postal_code": "483271658",
            "telephone_number": "248-666-5200",
            "fax_number": "248-666-5069"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HARDER",
        "first_name": "WILLIAM",
        "middle_name": "EDWARD",
        "credential": "D.O.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2015-05-19",
        "last_updated": "2026-04-30",
        "certification_date": "2026-04-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "MI",
            "license": "5101021792",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MI",
            "license": "5101021792",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Hanger Prosthetics & Orthotics East Inc
• Andrew James Hanna
• Alicia Hanner
• Vincent Hannosh, MD
• Mary Ann Harchick, DDSPC
• Meghan Hardy, MA, LPC, NCC
• Andrew Hare Hare
• Harmony Haven Home Care LLC
• Alexa R. Harnack, M.A., L.P.C.
• Melissa Harris-Gersten, RN

• Cardiovascular Disease Physician in Waterford, MI
• Providers in Waterford, 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 Apr 30, 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.

Verify at the official NPI Registry.