Cristina Sierra
NPI 1740825827 · Peer Specialist · Los Angeles, CA
Cristina Sierra is a Peer Specialist provider in Los Angeles, CA (NPI 1740825827).
Provider details
- NPI number
- 1740825827
- Entity type
- Individual
- Primary specialty
- Peer SpecialistOther Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Other Service Providers
- Community Health Worker172V00000X
Other Service Providers
- Peer Specialist175T00000X
Other Service Providers
- Peer Specialist175T00000X
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 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
Mailing address
Registry dates
- Enumerated
- 2019-11-12
- Last updated
- 2026-04-29
- Certified
- 2026-04-29
Frequently asked questions
- What is Cristina Sierra's NPI number?
- Cristina Sierra's National Provider Identifier (NPI) is 1740825827, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cristina Sierra's specialty?
- Cristina Sierra is listed in the NPPES registry with a primary specialty of Peer Specialist (Other Service Providers).
- Where is Cristina Sierra located?
- Cristina Sierra's practice location on file with NPPES is 840 N Avenue 66, Los Angeles, CA 90042-1508.
- What is Cristina Sierra's phone number?
- The practice phone number listed in the NPPES registry for Cristina Sierra is (626) 395-7100.
- Is Cristina Sierra's NPI active?
- Yes — Cristina Sierra's NPI (1740825827) is active in the NPPES registry as of the last update on 2026-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.