Quick answers
- Which hospitals does Eric J. Wielhouwer work at?
- Medicare's official clinician data lists Eric J. Wielhouwer at 2 hospitals: Corewell Health Pennock Hospital and Spectrum Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Eric J. Wielhouwer see patients?
- Medicare's clinician data lists 2 practice locations, including Grandville, MI and Grand Rapids, MI. Call before your visit to confirm the address.
- What is Eric J. Wielhouwer's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Pediatric Medicine.
- Does Eric J. Wielhouwer accept Medicare assignment?
- Yes. Medicare's clinician data says Eric J. Wielhouwer 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 Eric J. Wielhouwer offer telehealth?
- Medicare's clinician data says Eric J. Wielhouwer offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Eric J. Wielhouwer?
- (616) 391-4500, as listed in official Medicare / NPI Registry data.
- What is Eric J. Wielhouwer's NPI number?
- 1790819449. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Eric J. Wielhouwer works
Medicare's Facility Affiliation Data lists Eric J. Wielhouwer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Corewell Health Pennock HospitalHastings, MI · Critical Access Hospital · CCN 231339
- Spectrum HealthGrand Rapids, MI · Acute Care Hospital · CCN 230038
Practice locations
Addresses where Eric J. Wielhouwer is enrolled with Medicare (CMS data updated 2026-10-02).
- 3185 Macatawa Dr SW A, Corewell Health Medical Group WestGrandville, MI 49418 (616) 391‑4500
- 3271 Clear Vista Ct NE, Corewell Health Medical Group WestGrand Rapids, MI 49525 (616) 267‑7293
Group practices
Medicare enrollment lists Eric J. Wielhouwer as a member of this group (CMS data updated 2026-10-02).
- Spectrum Health Primary Care Partners2,294 clinicians in the group
Specialties
- Internal Medicineprimary
- Pediatric Medicinealso
Other internal medicine doctors in Michigan
Clinicians with the same Medicare primary specialty in Michigan — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Midwestern University, Chicago College Of Osteopathic Med |
| Graduation year | 2002 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1790819449 |
| 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