BENJAMIN D WILLENBRING MD
NPI 1902160385
Family Medicine in Grand Rapids, MI
About Benjamin D Willenbring Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
BENJAMIN D WILLENBRING MD (NPI 1902160385) is an individual family medicine provider in Grand Rapids, Michigan, licensed in Michigan (4301106839) and active in the NPI registry since June 2012. He is enrolled in Medicare PECOS, is affiliated with Mercy Health Saint Mary's, and is a graduate of University Of Minnesota Medical School (2012).
NPPES Registry Identity
Specialties & Licenses
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
Benjamin D Willenbring 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 Benjamin Willenbring reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Grand Rapids, MI 49503
- 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 2
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 49503 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 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GRAND RAPIDS, MI 49503
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 Benjamin Willenbring's NPI number?
The NPI number for Benjamin Willenbring is 1902160385. It was assigned to this individual provider in the NPPES registry on June 29, 2012.
Where is Benjamin Willenbring located?
Benjamin Willenbring practices at 359 Division Ave S, Grand Rapids, MI 49503. The listed phone number is (616) 685-3800.
What is Benjamin Willenbring's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Benjamin Willenbring enrolled in Medicare?
Yes. Benjamin Willenbring 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 Benjamin Willenbring's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Benjamin Willenbring reassigns Medicare benefits to Advantage Health/Saint Mary's Medical Group (Grand Rapids, 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 Benjamin Willenbring's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Benjamin Willenbring 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 Benjamin Willenbring 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 Benjamin Willenbring affiliated with any hospitals?
According to CMS data, Benjamin Willenbring is affiliated with Mercy Health Saint Mary's.
When was this NPI record last updated?
The NPPES record for Benjamin Willenbring was last updated on August 29, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Benjamin D Willenbring, MD · NPI 1902160385
Family Medicine physician in Grand Rapids, Michigan. Individual provider, active in the CMS NPPES registry since June 29, 2012.
## Identity
- **NPI:** 1902160385 (Entity type: Individual)
- **Enumerated:** June 29, 2012
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 4301106839 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 359 DIVISION AVE S, Grand Rapids, MI 49503-4537
- **Phone:** (616) 685-3800 · **Fax:** (616) 235-0913
## 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 1457863565, Grand Rapids, MI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Minnesota Medical School, class of 2012
## Record status
- **NPPES last updated:** August 29, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1902160385) · Data from the CMS NPPES public registry.