WINSTON D RYAN MD
NPI 1194886044
Emergency Medicine in Wausau, WI
About Winston D Ryan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WINSTON D RYAN MD (NPI 1194886044) is an individual emergency medicine provider in Wausau, Wisconsin, licensed in Wisconsin (35966) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Winston D Ryan Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Winston Ryan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Wausau, WI 54401
- Reassigned Medicare billing, Wisconsin enrollment
- 633 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 5
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54401 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
WAUSAU, WI 54401
WAUSAU, WI 54401
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 Winston Ryan's NPI number?
The NPI number for Winston Ryan is 1194886044. It was assigned to this individual provider in the NPPES registry on December 13, 2006.
Where is Winston Ryan located?
Winston Ryan practices at 333 Pine Ridge Blvd, Wausau, WI 54401. The listed phone number is (715) 847-2121.
What is Winston Ryan's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Winston Ryan enrolled in Medicare?
Yes. Winston Ryan is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Winston Ryan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Winston Ryan reassigns Medicare benefits to Aspirus Wausau Hospital Inc (Wausau, WI). 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 Winston Ryan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Winston Ryan was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Winston D Ryan, MD · NPI 1194886044
Emergency Medicine physician in Wausau, Wisconsin. Individual provider, active in the CMS NPPES registry since December 13, 2006.
## Identity
- **NPI:** 1194886044 (Entity type: Individual)
- **Enumerated:** December 13, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 35966 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 333 PINE RIDGE BLVD, Wausau, WI 54401-4120
- **Phone:** (715) 847-2121
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicaid 32173200 (WI); Medicare UPIN G15418 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1194886044) · Data from the CMS NPPES public registry.