What is Amber Trethewey's NPI number?

Amber Trethewey's National Provider Identifier (NPI) is 1881152098, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Amber Trethewey's specialty?

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

Where is Amber Trethewey located?

Amber Trethewey's practice location on file with NPPES is 16573 Auburn Rd, Grass Valley, CA 95949-8762.

What is Amber Trethewey's phone number?

The practice phone number listed in the NPPES registry for Amber Trethewey is (530) 273-0631.

Is Amber Trethewey's NPI active?

Yes — Amber Trethewey's NPI (1881152098) is active in the NPPES registry as of the last update on 2026-04-14.

IndividualActive

Amber Trethewey

NPI 1881152098 · Adult Companion · Grass Valley, CA

Amber Trethewey is a Adult Companion provider in Grass Valley, CA (NPI 1881152098).

Provider details

NPI number: 1881152098
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

Established profile(60/100 index)

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

Registry tenure38% of score
7 yrs in NPPES 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

16573 Auburn Rd

Grass Valley, CA 95949-8762

Phone: (530) 273-0631

Street-level locationGet directions

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Mailing address