Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Joni Sternberg

Adult Companion in Grass Valley, CA · enumerated 2025.

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

National Provider Identifier

1598636342

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Registry record

Entity type Individual (Type 1)

Name Joni Sternberg

Sex Female

Practice address 760 S Auburn St Ste C, Grass Valley, CA, 95945

Phone (530) 265-5811

Enumeration date Sep 15, 2025

Last updated in NPPES Sep 15, 2025

Taxonomy & licenses

372600000X Adult Companion Nursing Service Related Providers 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.

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Frequently asked questions

What is the NPI number for Joni Sternberg?

The National Provider Identifier (NPI) for Joni Sternberg is 1598636342, a Type 1 (individual) record in the CMS NPPES registry.

Where does Joni Sternberg practice?

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

Other providers at this practice address

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Heather Bullis-Cruz Rehabilitation Practitioner · Grass Valley, CA NPI 1235448606 Wendy Davis Counselor · Grass Valley, CA NPI 1275262370 Montana Clute Adult Companion · Grass Valley, CA NPI 1568177715 Stephanie Paone Adult Companion · Grass Valley, CA NPI 1508732728 Kendra Pepper Adult Companion · Grass Valley, CA NPI 1982532115 Claire Fifer Adult Companion · Grass Valley, CA NPI 1538097175 Nicole Allio Adult Companion · Grass Valley, CA NPI 1093640195

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-15.