What is Sarah Baltzley's NPI number?

Sarah Baltzley's National Provider Identifier (NPI) is 1558292573, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Sarah Baltzley's specialty?

Sarah Baltzley is listed in the NPPES registry with a primary specialty of Peer Specialist (Other Service Providers).

Where is Sarah Baltzley located?

Sarah Baltzley's practice location on file with NPPES is 333 N San Joaquin St, Stockton, CA 95202-2954.

What is Sarah Baltzley's phone number?

The practice phone number listed in the NPPES registry for Sarah Baltzley is (209) 683-9300.

Is Sarah Baltzley's NPI active?

Yes — Sarah Baltzley's NPI (1558292573) is active in the NPPES registry as of the last update on 2026-05-27.

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Sarah Baltzley, MPSS

NPI 1558292573 · Peer Specialist · Stockton, CA

Sarah Baltzley, MPSS is a Peer Specialist provider in Stockton, CA (NPI 1558292573).

Provider details

NPI number: 1558292573
Entity type: Individual
Primary specialty: Peer SpecialistOther Service Providers
Credential: MPSS
Sex: Female
Sole proprietor: Yes

Specialties & taxonomies

Peer SpecialistPrimary175T00000X
Other Service Providers

Profile Score

Basic profile(46/100 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

333 N San Joaquin St

Stockton, CA 95202-2954

Phone: (209) 683-9300

Street-level locationGet directions

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Mailing address