Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

James Karls

Q: What is the NPI number for James Karls?

The National Provider Identifier (NPI) for James Karls is 1659107597, a Type 1 (individual) record in the CMS NPPES registry.

Family Nurse Practitioner in Beloit, WI · enumerated 2024.

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

National Provider Identifier

1659107597

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Registry record

Entity type Individual (Type 1)

Name James Karls

Sex Male

Practice address 1969 W Hart Rd, Beloit, WI, 53511

Phone (608) 364-5011

Enumeration date Sep 9, 2024

Last updated in NPPES Sep 9, 2024

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 227145-30 (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 James Karls practice?

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

What is the NPI number for James Karls?

The National Provider Identifier (NPI) for James Karls is 1659107597, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-09.