What is Chelsey Mills's NPI number?

Chelsey Mills's National Provider Identifier (NPI) is 1609735729, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Chelsey Mills's specialty?

Chelsey Mills is listed in the NPPES registry with a primary specialty of School Social Worker (Behavioral Health & Social Service Providers).

Where is Chelsey Mills located?

Chelsey Mills's practice location on file with NPPES is 1615 Schoolhouse Way, San Marcos, CA 92078-1080.

What is Chelsey Mills's phone number?

The practice phone number listed in the NPPES registry for Chelsey Mills is (760) 290-2600.

Is Chelsey Mills's NPI active?

Yes — Chelsey Mills's NPI (1609735729) is active in the NPPES registry as of the last update on 2026-01-16.

IndividualActive

Chelsey Mills

NPI 1609735729 · School Social Worker · San Marcos, CA

Chelsey Mills is a School Social Worker provider in San Marcos, CA (NPI 1609735729).

Provider details

NPI number: 1609735729
Entity type: Individual
Primary specialty: School Social WorkerBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: No

Specialties & taxonomies

School Social WorkerPrimary1041S0200X
Behavioral Health & Social Service 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

1615 Schoolhouse Way

San Marcos, CA 92078-1080

Phone: (760) 290-2600

Approximate (ZIP-level) locationGet directions

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Mailing address