DR. MATTHEW WILLIAM EWY MD, RD, CNSC
NPI 1487045696
Internal Medicine - Gastroenterology in Madison, WI
About Dr. Matthew William Ewy Md, Rd, Cnsc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MATTHEW WILLIAM EWY MD, RD, CNSC (NPI 1487045696) is an individual gastroenterology provider in Madison, Wisconsin, licensed in Wisconsin (81693) and active in the NPI registry since February 2015. He is enrolled in Medicare PECOS, is affiliated with University Of Wi Hospitals & Clinics Authority, and is a graduate of Medical College Of Wisconsin (2020).
NPPES Registry Identity
Specialties & Licenses 3
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
Dr. Matthew William Ewy Md, Rd, Cnsc 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 Matthew Ewy reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Middleton, WI 53562
- Reassigned Medicare billing, Wisconsin enrollment
- 2,832 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Of Wi Hospitals & Clinics Authority
Acute Care Hospitals · Madison, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53792 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MADISON, WI 53792
MADISON, WI 53792
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 Matthew Ewy's NPI number?
The NPI number for Matthew Ewy is 1487045696. It was assigned to this individual provider in the NPPES registry on February 10, 2015.
Where is Matthew Ewy located?
Matthew Ewy practices at 600 Highland Ave, Madison, WI 53792. The listed phone number is (608) 263-0572.
What is Matthew Ewy's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Matthew Ewy enrolled in Medicare?
Yes. Matthew Ewy 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 Matthew Ewy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Ewy reassigns Medicare benefits to University Of Wisconsin Medical Foundation, Inc (Middleton, 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 Matthew Ewy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Matthew Ewy accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, Group Health Cooperative-SCW, HealthPartners and Quartz list Matthew Ewy 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 Matthew Ewy affiliated with any hospitals?
According to CMS data, Matthew Ewy is affiliated with University Of Wi Hospitals & Clinics Authority.
When was this NPI record last updated?
The NPPES record for Matthew Ewy was last updated on June 27, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Dr. Matthew William Ewy, MD, RD, CNSC · NPI 1487045696
Gastroenterology physician in Madison, Wisconsin. Individual provider, active in the CMS NPPES registry since February 10, 2015.
## Identity
- **NPI:** 1487045696 (Entity type: Individual)
- **Enumerated:** February 10, 2015
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 81693 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 600 HIGHLAND AVE, Madison, WI 53792-0001
- **Phone:** (608) 263-0572
## 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:** University Of Wisconsin Medical Foundation, Inc (NPI 1598784555, Middleton, WI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Medical College Of Wisconsin, class of 2020
## Record status
- **NPPES last updated:** June 27, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1487045696) · Data from the CMS NPPES public registry.