JOHN W WINTERS MD
NPI 1265404495
Anesthesiology in Grand Rapids, MI
About John W Winters Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN W WINTERS MD (NPI 1265404495) is an individual anesthesiology provider in Grand Rapids, Michigan, licensed in Michigan (4301071354) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS and is a graduate of Creighton University School Of Medicine (1989).
NPPES Registry Identity
Specialties & Licenses 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
John W Winters 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 John Winters 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
- 2,446 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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
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 John Winters's NPI number?
The NPI number for John Winters is 1265404495. It was assigned to this individual provider in the NPPES registry on February 2, 2006.
Where is John Winters located?
John Winters practices at 100 Michigan St NE Mc 117, Grand Rapids, MI 49503. The listed phone number is (616) 267-0118.
What is John Winters's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is John Winters enrolled in Medicare?
Yes. John Winters 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 John Winters's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Winters reassigns Medicare benefits to Spectrum Health Primary Care Partners (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 John Winters's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Winters accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and Priority Health list John Winters 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 John Winters 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.
# John W Winters, MD · NPI 1265404495
Anesthesiology physician in Grand Rapids, Michigan. Individual provider, active in the CMS NPPES registry since February 2, 2006.
## Identity
- **NPI:** 1265404495 (Entity type: Individual)
- **Enumerated:** February 2, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 4301071354 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 100 MICHIGAN ST NE, MC 117, Grand Rapids, MI 49503-2560
- **Phone:** (616) 267-0118 · **Fax:** (616) 267-0090
## 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:** Spectrum Health Primary Care Partners (NPI 1326599671, Grand Rapids, MI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Creighton University School Of Medicine, class of 1989
## Record status
- **NPPES last updated:** February 22, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1265404495) · Data from the CMS NPPES public registry.