WILLIAM ANTHONY SCHAEFER MD
NPI 1356082333
Family Medicine in Allendale, MI
About William Anthony Schaefer Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM ANTHONY SCHAEFER MD (NPI 1356082333) is an individual family medicine provider in Allendale, Michigan, licensed in Michigan (4351049095) and active in the NPI registry since April 2022. He is enrolled in Medicare PECOS and is a graduate of Other (2022).
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 (PECOS)
William Anthony Schaefer Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show William Schaefer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Wyoming, MI 49519
- Reassigned Medicare billing, Michigan enrollment
- 685 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49401 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 William Schaefer's NPI number?
The NPI number for William Schaefer is 1356082333. It was assigned to this individual provider in the NPPES registry on April 5, 2022.
Where is William Schaefer located?
William Schaefer practices at 4830 Becker Dr, Allendale, MI 49401. The listed phone number is (616) 252-3900.
What is William Schaefer's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is William Schaefer enrolled in Medicare?
Yes. William Schaefer is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for William Schaefer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Schaefer reassigns Medicare benefits to Metropolitan Hospital (Wyoming, 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 William Schaefer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Schaefer accept?
Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list William Schaefer 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.
When was this NPI record last updated?
The NPPES record for William Schaefer was last updated on September 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 42 days 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.
# William Anthony Schaefer, MD · NPI 1356082333
Family Medicine physician in Allendale, Michigan. Individual provider, active in the CMS NPPES registry since April 5, 2022.
## Identity
- **NPI:** 1356082333 (Entity type: Individual)
- **Enumerated:** April 5, 2022
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 4351049095 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 4830 BECKER DR, Allendale, MI 49401-8616
- **Phone:** (616) 252-3900
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Metropolitan Hospital (NPI 1336182542, Wyoming, MI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** September 22, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1356082333) · Data from the CMS NPPES public registry.