Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ms. Regina Louise Gronewoller, LMSW

Social Worker in Onaga, KS · enumerated 2010.

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

National Provider Identifier

1700197993

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Registry record

Entity type Individual (Type 1)

Name Ms. Regina Louise Gronewoller

Credential LMSW

Sex Female

Practice address Onaga, KS, 66521

Phone (785) 456-3532

Enumeration date Jun 23, 2010

Last updated in NPPES Jun 23, 2010

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 7773 (KS) 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 Regina Gronewoller practice?

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

What is the NPI number for Regina Gronewoller?

The National Provider Identifier (NPI) for Regina Gronewoller is 1700197993, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-06-23.