Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Catherine Jane O'Leary-Bauman, APNP

Critical Care Neonatal Nurse Practitioner in Middleton, WI · enumerated 2022.

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

National Provider Identifier

1730835588

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Registry record

Entity type Individual (Type 1)

Name Catherine Jane O'Leary-Bauman

Credential APNP

Sex Female

Practice address 1411 Parmenter St, Middleton, WI, 53562

Phone (608) 289-5311

Enumeration date Mar 1, 2022

Last updated in NPPES Mar 16, 2026

Taxonomy & licenses

363LN0005X Critical Care Neonatal Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 11910-33 (WI) Primary

363LN0005X Critical Care Neonatal Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 104407118 (WI) Secondary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Catherine O'Leary-Bauman?

The National Provider Identifier (NPI) for Catherine O'Leary-Bauman is 1730835588, a Type 1 (individual) record in the CMS NPPES registry.

Where does Catherine O'Leary-Bauman practice?

The practice location on file with NPPES is in Middleton, WI. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-16.