Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Lucas Readinger, MD

Individual provider Family Medicine Physician · NPI 1598714933

Dr. Lucas Readinger, MD is registered under Family Practice in Onalaska, Wisconsin. Graduated from University of Iowa, Rj & L Carver College of Medicine in 2003, 23 years ago. Practices with Gundersen Lutheran Medical Center Inc, a 896-clinician group and accepts Medicare assignment. Licensed in Minnesota and Wisconsin.

Years since qualifying
23
Trained at
University of Iowa, Rj & L Carver College of Medicine
Licensed in
MN, WI
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3111 Gundersen Dr
Onalaska, WI 54650-8447
Phone: (608) 775-8100
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 54144 (WI)
Family Medicine Physician Taxonomy 207Q00000X · Licence 47079 (MN)

Record details

NPI number1598714933
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 10, 2006
Last updated in NPPESFebruary 2, 2026
Certification dateFebruary 2, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE
Graduated 2003 (23 years in practice)
Group practice Gundersen Lutheran Medical Center Inc — 896 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients166
Services billed 172 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Gundersen Lutheran Medical Center Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 896 clinicians in the practice; 12 are shown here.

Other providers in Onalaska