Sierra Hartsfield
NPI 1043631922 · Clinical Social Worker · Cerritos, CA
Sierra Hartsfield is a Clinical Social Worker provider in Cerritos, CA (NPI 1043631922).
Provider details
- NPI number
- 1043631922
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 19073 (MD)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 16220 Frederick Rd310Gaithersburg, MD 20877-4039Phone: (301) 345-1022
Registry dates
- Enumerated
- 2013-12-19
- Last updated
- 2023-05-11
- Certified
- 2023-05-11
Frequently asked questions
- What is Sierra Hartsfield's NPI number?
- Sierra Hartsfield's National Provider Identifier (NPI) is 1043631922, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sierra Hartsfield's specialty?
- Sierra Hartsfield is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Sierra Hartsfield located?
- Sierra Hartsfield's practice location on file with NPPES is 12900 Park Plaza Dr, Cerritos, CA 90703-9329.
- What is Sierra Hartsfield's phone number?
- The practice phone number listed in the NPPES registry for Sierra Hartsfield is (562) 467-5438.
- Is Sierra Hartsfield's NPI active?
- Yes — Sierra Hartsfield's NPI (1043631922) is active in the NPPES registry as of the last update on 2023-05-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.