DR. AILEEN CATHERINE JOHNSON MD
NPI 1437653524
Transplant Surgery in Madison, WI
About Dr. Aileen Catherine Johnson Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. AILEEN CATHERINE JOHNSON MD (NPI 1437653524) is an individual transplant surgery provider in Madison, Wisconsin, licensed in Wisconsin (87731-20) and active in the NPI registry since March 2018. She is enrolled in Medicare PECOS and maintains a secondary practice location in Atlanta.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 1
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)
Dr. Aileen Catherine Johnson Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Aileen Johnson 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.
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 Aileen Johnson's NPI number?
The NPI number for Aileen Johnson is 1437653524. It was assigned to this individual provider in the NPPES registry on March 22, 2018.
Where is Aileen Johnson located?
Aileen Johnson practices at 600 Highland Ave, Madison, WI 53792. The listed phone number is (608) 263-1384.
What is Aileen Johnson's specialty?
The primary specialty registered for this NPI is Transplant Surgery with taxonomy code 204F00000X.
Is Aileen Johnson enrolled in Medicare?
Yes. Aileen Johnson is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Aileen Johnson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Aileen Johnson 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 Aileen Johnson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Aileen Johnson accept?
Health plans from Anthem Blue Cross and Blue Shield and Group Health Cooperative-SCW list Aileen Johnson 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 Aileen Johnson was last updated on July 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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. Aileen Catherine Johnson, MD · NPI 1437653524
Transplant Surgery physician in Madison, Wisconsin. Individual provider, active in the CMS NPPES registry since March 22, 2018.
## Identity
- **NPI:** 1437653524 (Entity type: Individual)
- **Enumerated:** March 22, 2018
- **Primary specialty:** Transplant Surgery · taxonomy 204F00000X
- **State license:** 87731-20 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 600 HIGHLAND AVE, Madison, WI 53792-0001
- **Phone:** (608) 263-1384
## 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:** University Of Wisconsin Medical Foundation, Inc (NPI 1598784555, Middleton, WI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 28, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1437653524) · Data from the CMS NPPES public registry.