DR. LUCAS READINGER MD
NPI 1598714933
Family Medicine in Onalaska, WI
About Dr. Lucas Readinger Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LUCAS READINGER MD (NPI 1598714933) is an individual family medicine provider in Onalaska, Wisconsin, licensed in Wisconsin (54144) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Gundersen Lutheran Medical Center, and is a graduate of University Of Iowa, Rj & L Carver College Of Medicine (2003).
NPPES Registry Identity
Specialties & Licenses
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. Lucas Readinger 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
2Medicare enrollment records show Lucas Readinger reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Onalaska, WI 54650
- Reassigned Medicare billing, Wisconsin enrollment
- 1,457 clinicians in this Medicare group
Westby, WI 54667
- Reassigned Medicare billing, Wisconsin enrollment
- 49 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 2
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
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, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54650 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.
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 Lucas Readinger's NPI number?
The NPI number for Lucas Readinger is 1598714933. It was assigned to this individual provider in the NPPES registry on May 10, 2006.
Where is Lucas Readinger located?
Lucas Readinger practices at 3111 Gundersen Dr, Onalaska, WI 54650. The listed phone number is (608) 775-8100.
What is Lucas Readinger's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Lucas Readinger enrolled in Medicare?
Yes. Lucas Readinger 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 Lucas Readinger's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lucas Readinger reassigns Medicare benefits to 2 organizations: Gundersen Lutheran Medical Center, Inc (Onalaska, WI) and Vernon Memorial Healthcare, Inc. (Westby, 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 Lucas Readinger's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Lucas Readinger affiliated with any hospitals?
According to CMS data, Lucas Readinger is affiliated with Gundersen Lutheran Medical Center.
When was this NPI record last updated?
The NPPES record for Lucas Readinger was last updated on February 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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. Lucas Readinger, MD · NPI 1598714933
Family Medicine physician in Onalaska, Wisconsin. Individual provider, active in the CMS NPPES registry since May 10, 2006.
## Identity
- **NPI:** 1598714933 (Entity type: Individual)
- **Enumerated:** May 10, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 54144 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 3111 GUNDERSEN DR, Onalaska, WI 54650-8447
- **Phone:** (608) 775-8100
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Gundersen Lutheran Medical Center, Inc (NPI 1225372923, Onalaska, WI); Vernon Memorial Healthcare, Inc. (NPI 1215933767, Westby, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Iowa, Rj & L Carver College Of Medicine, class of 2003
## Record status
- **NPPES last updated:** February 2, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1598714933) · Data from the CMS NPPES public registry.