AARON T. OLSON M.D.
NPI 1316156227
Family Medicine in Onalaska, WI

Active since May 21, 2007PECOS Enrolled
3111 GUNDERSEN DR, ONALASKA, WI 54650(608) 775-8100 Get Directions Write a Review

NPPES record last updated: December 4, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Aaron T. Olson M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

AARON T. OLSON M.D. (NPI 1316156227) is an individual family medicine provider in Onalaska, Wisconsin, licensed in Wisconsin (54782) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS and maintains a secondary practice location in Wisconsin Rapids.

NPPES Registry Identity

NPI1316156227
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameAARON T. OLSONCredential: M.D.
Location Address3111 GUNDERSEN DROnalaska, WI 54650
Mailing Address1836 South AveLa Crosse, WI 54601-5429
Sole ProprietorNo
Enumeration DateMay 21, 2007
Last NPPES UpdateDecember 4, 2020
NPPES CertifiedDecember 4, 2020
✔ NPI 1316156227 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses✔ Licensed in WI · 54782✔ Licensed in IA · R-7919✔ Licensed in IA · 37836
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
3111 GUNDERSEN DR, Onalaska, WI 54650

Secondary Practice Location 1

Location 1420 Dewey StWisconsin Rapids, WI 54494-4714 · Phone (715) 421-7474

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)

Aaron T. Olson M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Aaron Olson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Clinic/Center
3111 GUNDERSEN DR
Onalaska, WI 54650
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,457 clinicians in this Medicare group
Multi-Specialty
800 WEST AVE S
La Crosse, WI 54601
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,003 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.

Physician 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.

New Patient
$82.92 typical visit price
range $53.90 – $163.24
Typical copayment $20.73 (range $13.47 – $40.81)
Most-billed visit code 99203
Established Patient
$95.41 typical visit price
range $17.40 – $133.76
Typical copayment $23.85 (range $4.35 – $33.44)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Specialist
3111 GUNDERSEN DR
ONALASKA, WI 54650
Nurse Practitioner (Family)
3111 GUNDERSEN DR
ONALASKA, WI 54650
Physical Therapist
3111 GUNDERSEN DR
ONALASKA, WI 54650
Physical Therapist
3111 GUNDERSEN DR
ONALASKA, WI 54650
Physical Therapist
3111 GUNDERSEN DR
ONALASKA, WI 54650
Physical Therapist
3111 GUNDERSEN DR
ONALASKA, WI 54650
Nurse Practitioner (Adult Health)
3111 GUNDERSEN DR
ONALASKA, WI 54650
Family Medicine
3111 GUNDERSEN DR
ONALASKA, WI 54650

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 Aaron Olson's NPI number?

The NPI number for Aaron Olson is 1316156227. It was assigned to this individual provider in the NPPES registry on May 21, 2007.

Where is Aaron Olson located?

Aaron Olson practices at 3111 Gundersen Dr, Onalaska, WI 54650. The listed phone number is (608) 775-8100.

What is Aaron Olson's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Aaron Olson enrolled in Medicare?

Yes. Aaron Olson is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Aaron Olson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Olson reassigns Medicare benefits to 2 organizations: Gundersen Lutheran Medical Center, Inc (Onalaska, WI) and Mayo Clinic Health System-Southwest Wisconsin Region, Inc. (La Crosse, 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 Aaron Olson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Aaron Olson accept?

Health plans from HealthPartners list Aaron Olson 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 Aaron Olson was last updated on December 4, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.