GREGORY VANWIENEN MD
NPI 1194771972
Family Medicine in Jenison, MI
About Gregory Vanwienen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY VANWIENEN MD (NPI 1194771972) is an individual family medicine provider in Jenison, Michigan, licensed in Michigan (4301063899) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Mercy Health Saint Mary's, and is a graduate of Michigan State University College Of Human Medicine (1994).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
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
Gregory Vanwienen Md 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 Reassignment
Medicare enrollment records show Gregory Vanwienen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Hudsonville, MI 49426
- Reassigned Medicare billing, Michigan enrollment
- 737 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
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Health Saint Mary's
Acute Care Hospitals · Grand Rapids, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49428 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.
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 Gregory Vanwienen's NPI number?
The NPI number for Gregory Vanwienen is 1194771972. It was assigned to this individual provider in the NPPES registry on May 25, 2006.
Where is Gregory Vanwienen located?
Gregory Vanwienen practices at 7780 20th Ave, Jenison, MI 49428. The listed phone number is (616) 685-8700.
What is Gregory Vanwienen's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Gregory Vanwienen enrolled in Medicare?
Yes. Gregory Vanwienen 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 organization bills Medicare for Gregory Vanwienen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Vanwienen reassigns Medicare benefits to Advantage Health/Saint Mary's Medical Group (Hudsonville, MI). The 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 Gregory Vanwienen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Vanwienen accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, Oscar Insurance Company and Priority Health list Gregory Vanwienen 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 Gregory Vanwienen affiliated with any hospitals?
According to CMS data, Gregory Vanwienen is affiliated with Mercy Health Saint Mary's.
When was this NPI record last updated?
The NPPES record for Gregory Vanwienen was last updated on December 28, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Gregory Vanwienen, MD · NPI 1194771972
Family Medicine physician in Jenison, Michigan. Individual provider, active in the CMS NPPES registry since May 25, 2006.
## Identity
- **NPI:** 1194771972 (Entity type: Individual)
- **Enumerated:** May 25, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 4301063899 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 7780 20TH AVE, Jenison, MI 49428-8524
- **Phone:** (616) 685-8700 · **Fax:** (616) 457-5567
## 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:** Advantage Health/Saint Mary's Medical Group (NPI 1538430533, Hudsonville, MI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Michigan State University College Of Human Medicine, class of 1994
## Record status
- **NPPES last updated:** December 28, 2021
- **Other identifiers:** Medicaid 4876870 (MI); Medicaid 4155666 (MI); Medicaid 3358029 (MI); and 1 more
---
Source: [NPI Profile](https://npiprofile.com/npi/1194771972) · Data from the CMS NPPES public registry.