Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Carol Ballweg, APNP

Family Nurse Practitioner in Fitchburg, WI · enumerated 2007.

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

National Provider Identifier

1609990381

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Registry record

Entity type Individual (Type 1)

Name Carol Ballweg

Credential APNP

Sex Female

Practice address 3051 Cahill Main, Fitchburg, WI, 53711

Phone (608) 661-7200

Enumeration date Mar 19, 2007

Last updated in NPPES Sep 8, 2011

Taxonomy & licenses

163WD0400X Diabetes Educator Registered Nurse Nursing Service Providers · License 126927-030 (WI) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 4542 (WI) Primary

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

Where does Carol Ballweg practice?

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

What is the NPI number for Carol Ballweg?

The National Provider Identifier (NPI) for Carol Ballweg is 1609990381, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-09-08.