Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Casandra Lynn Mensing Grube, D.O.

Pediatrics Physician in Onalaska, WI · enumerated 2007 · practices at Mayo Clinic Health System-Southwest Wisconsin Region, Inc..

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1033319694

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Registry record

Entity type Individual (Type 1)

Name Casandra Lynn Mensing Grube

Credential D.O.

Sex Female

Practice address 191 Theater Rd, Onalaska, WI, 54650

Phone (608) 392-5000

Enumeration date Jul 23, 2007

Last updated in NPPES Jan 2, 2024

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 34009530 (OH) Secondary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 56088 (WI) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How do I verify Casandra Grube's NPI record?

Cross-check NPI 1033319694 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1033319694 active?

Yes, as of the latest NPPES snapshot, NPI 1033319694 is active (record last updated 2024-01-02).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-02.