ERIC JAMES WIELHOUWER D.O.
NPI 1790819449
Internal Medicine in Grandville, MI
About Eric James Wielhouwer D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ERIC JAMES WIELHOUWER D.O. (NPI 1790819449) is an individual internal medicine provider in Grandville, Michigan, licensed in Michigan (5101015494) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS, is affiliated with Spectrum Health, and is a graduate of Midwestern University, Chicago College Of Osteopathic Med (2002).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Eric James Wielhouwer D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Eric Wielhouwer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Wyoming, MI 49509
- Reassigned Medicare billing, Michigan enrollment
- 2,446 clinicians in this Medicare group
Grand Rapids, MI 49503
- Reassigned Medicare billing, Michigan enrollment
- 405 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Spectrum Health
Acute Care Hospitals · Grand Rapids, MICorewell Health Pennock Hospital
Critical Access Hospitals · Hastings, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49418 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GRANDVILLE, MI 49418
GRANDVILLE, MI 49418
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Eric Wielhouwer's NPI number?
The NPI number for Eric Wielhouwer is 1790819449. It was assigned to this individual provider in the NPPES registry on March 15, 2007.
Where is Eric Wielhouwer located?
Eric Wielhouwer practices at 3185 Macatawa Dr SW Suite A, Grandville, MI 49418. The listed phone number is (616) 391-4500.
What is Eric Wielhouwer's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Eric Wielhouwer enrolled in Medicare?
Yes. Eric Wielhouwer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Eric Wielhouwer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Eric Wielhouwer reassigns Medicare benefits to 2 organizations: Spectrum Health Primary Care Partners (Wyoming, MI) and Spectrum Health Hospitals (Grand Rapids, MI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Eric Wielhouwer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Eric Wielhouwer accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 1 other insurer list Eric Wielhouwer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Eric Wielhouwer affiliated with any hospitals?
According to CMS data, Eric Wielhouwer is affiliated with Spectrum Health and Corewell Health Pennock Hospital.
When was this NPI record last updated?
The NPPES record for Eric Wielhouwer was last updated on February 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Eric James Wielhouwer, D.O. · NPI 1790819449
Internal Medicine physician in Grandville, Michigan. Individual provider, active in the CMS NPPES registry since March 15, 2007.
## Identity
- **NPI:** 1790819449 (Entity type: Individual)
- **Enumerated:** March 15, 2007
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 5101015494 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 3185 MACATAWA DR SW, SUITE A, Grandville, MI 49418-3163
- **Phone:** (616) 391-4500 · **Fax:** (616) 486-0130
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Spectrum Health Primary Care Partners (NPI 1275190456, Wyoming, MI); Spectrum Health Hospitals (NPI 1558407189, Grand Rapids, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Midwestern University, Chicago College Of Osteopathic Med, class of 2002
## Record status
- **NPPES last updated:** February 22, 2021
- **Other identifiers:** Medicaid 114985130 (MI)
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Source: [NPI Profile](https://npiprofile.com/npi/1790819449) · Data from the CMS NPPES public registry.