IndividualActive
Xiomara Perez Sierra
NPI 1649932351 · Social Worker · Costa Mesa, CA
Xiomara Perez Sierra is a Social Worker provider in Costa Mesa, CA (NPI 1649932351).
Provider details
- NPI number
- 1649932351
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- ASW127023 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(61/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs 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
301 Victoria St
Costa Mesa, CA 92627-1995
Phone: (949) 642-2734
Street-level locationGet directions
Mailing address
301 Victoria St
Costa Mesa, CA 92627-1995
Registry dates
- Enumerated
- 2021-10-10
- Last updated
- 2024-12-13
- Certified
- 2024-12-13
Frequently asked questions
- What is Xiomara Perez Sierra's NPI number?
- Xiomara Perez Sierra's National Provider Identifier (NPI) is 1649932351, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Xiomara Perez Sierra's specialty?
- Xiomara Perez Sierra is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Xiomara Perez Sierra located?
- Xiomara Perez Sierra's practice location on file with NPPES is 301 Victoria St, Costa Mesa, CA 92627-1995.
- What is Xiomara Perez Sierra's phone number?
- The practice phone number listed in the NPPES registry for Xiomara Perez Sierra is (949) 642-2734.
- Is Xiomara Perez Sierra's NPI active?
- Yes — Xiomara Perez Sierra's NPI (1649932351) is active in the NPPES registry as of the last update on 2024-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.