CASANDRA LYNN MENSING GRUBE D.O.
NPI 1033319694
Pediatrics in Onalaska, WI
About Casandra Lynn Mensing Grube D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CASANDRA LYNN MENSING GRUBE D.O. (NPI 1033319694) is an individual pediatrics provider in Onalaska, Wisconsin, licensed in Wisconsin (56088) and active in the NPI registry since July 2007. She is enrolled in Medicare PECOS and maintains a secondary practice location in Onalaska.
NPPES Registry Identity
Specialties & Licenses
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)
Casandra Lynn Mensing Grube D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Casandra Grube reassigns Medicare billing to 3 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
La Crosse, WI 54603
- Reassigned Medicare billing, Wisconsin enrollment
- 928 clinicians in this Medicare group
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.
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 Casandra Grube's NPI number?
The NPI number for Casandra Grube is 1033319694. It was assigned to this individual provider in the NPPES registry on July 23, 2007.
Where is Casandra Grube located?
Casandra Grube practices at 191 Theater Rd, Onalaska, WI 54650. The listed phone number is (608) 392-5000.
What is Casandra Grube's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Casandra Grube enrolled in Medicare?
Yes. Casandra Grube is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Casandra Grube's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Casandra Grube reassigns Medicare benefits to 3 organizations: Gundersen Lutheran Medical Center, Inc (Onalaska, WI), Gundersen Clinic Ltd (La Crosse, 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 Casandra Grube's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Casandra Grube accept?
Health plans from Anthem Blue Cross and Blue Shield and Security Health Plan list Casandra Grube 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 Casandra Grube was last updated on January 2, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Casandra Lynn Mensing Grube, D.O. · NPI 1033319694
Pediatrics physician in Onalaska, Wisconsin. Individual provider, active in the CMS NPPES registry since July 23, 2007.
## Identity
- **NPI:** 1033319694 (Entity type: Individual)
- **Enumerated:** July 23, 2007
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** 56088 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 191 THEATER RD, Onalaska, WI 54650-8679
- **Phone:** (608) 392-5000
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Gundersen Lutheran Medical Center, Inc (NPI 1225372923, Onalaska, WI); Gundersen Clinic Ltd (NPI 1952915639, La Crosse, WI); Mayo Clinic Health System-Southwest Wisconsin Region, Inc. (NPI 1629056049, La Crosse, WI) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 2, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1033319694) · Data from the CMS NPPES public registry.