What is Ellen Mason-Foster's NPI number?

Ellen Mason-Foster's National Provider Identifier (NPI) is 1639064934, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Ellen Mason-Foster's specialty?

Ellen Mason-Foster is listed in the NPPES registry with a primary specialty of Peer Specialist (Other Service Providers).

Where is Ellen Mason-Foster located?

Ellen Mason-Foster's practice location on file with NPPES is 1000 Sunset Blvd Ste 140, Rocklin, CA 95765-5482.

What is Ellen Mason-Foster's phone number?

The practice phone number listed in the NPPES registry for Ellen Mason-Foster is (916) 223-9699.

Is Ellen Mason-Foster's NPI active?

Yes — Ellen Mason-Foster's NPI (1639064934) is active in the NPPES registry as of the last update on 2025-06-09.

IndividualActive

Ellen Mason-Foster

NPI 1639064934 · Peer Specialist · Rocklin, CA

Ellen Mason-Foster is a Peer Specialist provider in Rocklin, CA (NPI 1639064934).

Provider details

NPI number: 1639064934
Entity type: Individual
Primary specialty: Peer SpecialistOther Service Providers
Sex: Female
Sole proprietor: Yes
License: MPSS-WCIAHK (CA)

Specialties & taxonomies

Peer SpecialistPrimary175T00000XLicense MPSS-WCIAHK (CA)
Other Service Providers

Profile Score

Established profile(54/100 index)

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

Registry tenure38% of score
1 yr in NPPES registry
Profile completeness38% of score
100% 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

1000 Sunset Blvd Ste 140

Rocklin, CA 95765-5482

Phone: (916) 223-9699

Street-level locationGet directions

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Mailing address