COURTNEY R WIRTANEN MD
NPI 1215516661
Internal Medicine in La Crosse, WI
About Courtney R Wirtanen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
COURTNEY R WIRTANEN MD (NPI 1215516661) is an individual internal medicine provider in La Crosse, Wisconsin, licensed in Wisconsin (77464) and active in the NPI registry since April 2021. She is enrolled in Medicare PECOS, is affiliated with Gundersen Lutheran Medical Center, and is a graduate of Other (2021).
NPPES Registry Identity
Specialties & Licenses 2
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
Courtney R Wirtanen 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 Courtney Wirtanen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
La Crosse, WI 54601
- Reassigned Medicare billing, Wisconsin enrollment
- 1,457 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 3
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Gundersen Lutheran Medical Center
Acute Care Hospitals · La Crosse, WIGundersen St Josephs Hospital And Clinics
Critical Access Hospitals · Hillsboro, WICrossing Rivers Health Medical Center
Critical Access Hospitals · Prairie Du Chien, WIVernon Memorial Hospital
Critical Access Hospitals · Viroqua, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54601 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.
LA CROSSE, WI 54601
LA CROSSE, WI 54601
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 Courtney Wirtanen's NPI number?
The NPI number for Courtney Wirtanen is 1215516661. It was assigned to this individual provider in the NPPES registry on April 5, 2021.
Where is Courtney Wirtanen located?
Courtney Wirtanen practices at 1836 South Ave, La Crosse, WI 54601. The listed phone number is (608) 782-7300.
What is Courtney Wirtanen's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Courtney Wirtanen enrolled in Medicare?
Yes. Courtney Wirtanen 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 Courtney Wirtanen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Courtney Wirtanen reassigns Medicare benefits to Gundersen Lutheran Medical Center, Inc (La Crosse, 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 Courtney Wirtanen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Courtney Wirtanen accept?
Health plans from Anthem Blue Cross and Blue Shield list Courtney Wirtanen 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 Courtney Wirtanen affiliated with any hospitals?
According to CMS data, Courtney Wirtanen is affiliated with Gundersen Lutheran Medical Center, Gundersen St Josephs Hospital And Clinics, Crossing Rivers Health Medical Center and Vernon Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Courtney Wirtanen was last updated on April 26, 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.
# Courtney R Wirtanen, MD · NPI 1215516661
Internal Medicine physician in La Crosse, Wisconsin. Individual provider, active in the CMS NPPES registry since April 5, 2021.
## Identity
- **NPI:** 1215516661 (Entity type: Individual)
- **Enumerated:** April 5, 2021
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 77464 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 1836 SOUTH AVE, La Crosse, WI 54601-5429
- **Phone:** (608) 782-7300
## 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:** Gundersen Lutheran Medical Center, Inc (NPI 1619210895, La Crosse, WI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** April 26, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1215516661) · Data from the CMS NPPES public registry.