IndividualActive
Nancy Nieves
NPI 1689388399 · Clinical Social Worker · Antioch, CA
Nancy Nieves is a Clinical Social Worker provider in Antioch, CA (NPI 1689388399).
Provider details
- NPI number
- 1689388399
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- ASW92758 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(59/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 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
2810 Lone Tree Way Ste 9
Antioch, CA 94509-4956
Phone: (925) 391-2435
Street-level locationGet directions
Mailing address
199 Douglas Rd
Oakley, CA 94561-2748
Registry dates
- Enumerated
- 2023-01-09
- Last updated
- 2023-01-09
- Certified
- 2023-01-06
Frequently asked questions
- What is Nancy Nieves's NPI number?
- Nancy Nieves's National Provider Identifier (NPI) is 1689388399, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Nieves's specialty?
- Nancy Nieves is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Nancy Nieves located?
- Nancy Nieves's practice location on file with NPPES is 2810 Lone Tree Way Ste 9, Antioch, CA 94509-4956.
- What is Nancy Nieves's phone number?
- The practice phone number listed in the NPPES registry for Nancy Nieves is (925) 391-2435.
- Is Nancy Nieves's NPI active?
- Yes — Nancy Nieves's NPI (1689388399) is active in the NPPES registry as of the last update on 2023-01-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.