Natalie Castellanos, MSW
NPI 1396337978 · Clinical Social Worker · San Bernardino, CA
Natalie Castellanos, MSW is a Clinical Social Worker provider in San Bernardino, CA (NPI 1396337978).
Provider details
- NPI number
- 1396337978
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
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
5 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
- 2021-02-05
- Last updated
- 2025-06-04
- Certified
- 2025-06-04
Frequently asked questions
- What is Natalie Castellanos's NPI number?
- Natalie Castellanos's National Provider Identifier (NPI) is 1396337978, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Natalie Castellanos's specialty?
- Natalie Castellanos is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Natalie Castellanos located?
- Natalie Castellanos's practice location on file with NPPES is 1481 Windsor Dr, San Bernardino, CA 92404-5416.
- What is Natalie Castellanos's phone number?
- The practice phone number listed in the NPPES registry for Natalie Castellanos is (909) 433-9300.
- Is Natalie Castellanos's NPI active?
- Yes — Natalie Castellanos's NPI (1396337978) is active in the NPPES registry as of the last update on 2025-06-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.