Quick answers
- Which hospitals does William E. Harder work at?
- Medicare's official clinician data lists William E. Harder at 5 hospitals: Beaumont Hospital - Dearborn, Corewell Health Wayne Hospital, Garden City Hospital, McLaren Oakland and Trinity Health Oakland Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William E. Harder see patients?
- Medicare's clinician data lists 2 practice locations, including Garden City, MI and Waterford, MI. Call before your visit to confirm the address.
- What is William E. Harder's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does William E. Harder accept Medicare assignment?
- Yes. Medicare's clinician data says William E. Harder accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does William E. Harder offer telehealth?
- Medicare's clinician data says William E. Harder offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for William E. Harder?
- (734) 261-9211, as listed in official Medicare / NPI Registry data.
- What is William E. Harder's NPI number?
- 1225417660. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William E. Harder works
Medicare's Facility Affiliation Data lists William E. Harder at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Beaumont Hospital - DearbornDearborn, MI · Acute Care Hospital · CCN 230020
- Corewell Health Wayne HospitalWayne, MI · Acute Care Hospital · CCN 230142
- Garden City HospitalGarden City, MI · Acute Care Hospital · CCN 230244
- McLaren OaklandPontiac, MI · Acute Care Hospital · CCN 230207
- Trinity Health Oakland HospitalPontiac, MI · Acute Care Hospital · CCN 230029
Practice locations
Addresses where William E. Harder is enrolled with Medicare (CMS data updated 2026-10-02).
- 30626 Ford RdGarden City, MI 48135 (734) 261‑9211
- 6889 Highland RdWaterford, MI 48327
Group practices
Medicare enrollment lists William E. Harder as a member of these groups (CMS data updated 2026-10-02).
- Heart Care PC4 clinicians in the group
- Midwest Cardiology Associates PC4 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Michigan →
Other cardiologists in Garden City
Clinicians with the same Medicare primary specialty in Garden City, MI — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Michigan State University College Of Osteopathic Medicine |
| Graduation year | 2015 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1225417660 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians