What is Joni Sternberg's NPI number?

Joni Sternberg's National Provider Identifier (NPI) is 1598636342, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Joni Sternberg's specialty?

Joni Sternberg is listed in the NPPES registry with a primary specialty of Adult Companion (Nursing Service Related Providers).

Where is Joni Sternberg located?

Joni Sternberg's practice location on file with NPPES is 760 S Auburn St Ste C, Grass Valley, CA 95945-4318.

What is Joni Sternberg's phone number?

The practice phone number listed in the NPPES registry for Joni Sternberg is (530) 265-5811.

Is Joni Sternberg's NPI active?

Yes — Joni Sternberg's NPI (1598636342) is active in the NPPES registry as of the last update on 2025-09-15.

IndividualActive

Joni Sternberg

NPI 1598636342 · Adult Companion · Grass Valley, CA

Joni Sternberg is a Adult Companion provider in Grass Valley, CA (NPI 1598636342).

Provider details

NPI number: 1598636342
Entity type: Individual
Primary specialty: Adult CompanionNursing Service Related Providers
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Adult CompanionPrimary372600000X
Nursing Service Related Providers

Profile Score

Basic profile(47/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in registry
Profile completeness38% of score
83% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

760 S Auburn St Ste C

Grass Valley, CA 95945-4318

Phone: (530) 265-5811

Street-level locationGet directions

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Mailing address