DR. THOMAS R WALLHAUS MD
NPI 1215900022
Internal Medicine - Cardiovascular Disease in Madison, WI
About Dr. Thomas R Wallhaus Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. THOMAS R WALLHAUS MD (NPI 1215900022) is an individual cardiovascular disease provider in Madison, Wisconsin, licensed in Wisconsin (32393-20) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Unitypoint Health - Meriter, and is a graduate of Southern Illinois University School Of Medicine (1990).
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
Dr. Thomas R Wallhaus 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 Reassignments
4Medicare enrollment records show Thomas Wallhaus reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Middleton, WI 53562
- Reassigned Medicare billing, Wisconsin enrollment
- 2,832 clinicians in this Medicare group
Fort Atkinson, WI 53538
- Reassigned Medicare billing, Wisconsin enrollment
- 298 clinicians in this Medicare group
Wisconsin Dells, WI 53965
- Reassigned Medicare billing, Wisconsin enrollment
- 189 clinicians in this Medicare group
Westfield, WI 53964
- Reassigned Medicare billing, Wisconsin enrollment
- 280 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 21
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Unitypoint Health - Meriter
Acute Care Hospitals · Madison, WISauk Prairie Hospital
Acute Care Hospitals · Prairie Du Sac, WIUniversity Of Wi Hospitals & Clinics Authority
Acute Care Hospitals · Madison, WIMile Bluff Medical Center
Acute Care Hospitals · Mauston, WIRichland Hospital
Critical Access Hospitals · Richland Center, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53713 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 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MADISON, WI 53713
MADISON, WI 53713
MADISON, WI 53713
MADISON, WI 53713
MADISON, WI 53713
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 Thomas Wallhaus's NPI number?
The NPI number for Thomas Wallhaus is 1215900022. It was assigned to this individual provider in the NPPES registry on February 10, 2006.
Where is Thomas Wallhaus located?
Thomas Wallhaus practices at 2601 W Beltline Hwy Ste 200, Madison, WI 53713. The listed phone number is (608) 287-2434.
What is Thomas Wallhaus's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Thomas Wallhaus enrolled in Medicare?
Yes. Thomas Wallhaus 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 organizations bill Medicare for Thomas Wallhaus's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Wallhaus reassigns Medicare benefits to 4 organizations: University Of Wisconsin Medical Foundation, Inc (Middleton, WI), Fort Healthcare, Inc. (Fort Atkinson, WI), Mile Bluff Medical Center Inc (Wisconsin Dells, WI) and Moundview Memorial Hospital & Clinics, Inc. (Westfield, WI). Each 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 Thomas Wallhaus's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Thomas Wallhaus accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, Group Health Cooperative-SCW, HealthPartners and Quartz and 1 other insurer list Thomas Wallhaus 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 Thomas Wallhaus affiliated with any hospitals?
According to CMS data, Thomas Wallhaus is affiliated with Unitypoint Health - Meriter, Sauk Prairie Hospital, University Of Wi Hospitals & Clinics Authority, Mile Bluff Medical Center and Richland Hospital.
When was this NPI record last updated?
The NPPES record for Thomas Wallhaus was last updated on August 3, 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.