Sharon Castellanos, WHNP, CNS
NPI 1841300233 · Community Health Registered Nurse · Santa Clara, CA
Sharon Castellanos, WHNP, CNS is a Community Health Registered Nurse provider in Santa Clara, CA (NPI 1841300233).
Provider details
- NPI number
- 1841300233
- Entity type
- Individual
- Primary specialty
- Community Health Registered NurseNursing Service Providers
- Credential
- WHNP, CNS
- Sex
- Female
- Sole proprietor
- No
- License
- 3773 (CA)
Specialties & taxonomies
Nursing Service Providers
Nursing Service Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$23 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-30
- Last updated
- 2025-09-11
Frequently asked questions
- What is Sharon Castellanos's NPI number?
- Sharon Castellanos's National Provider Identifier (NPI) is 1841300233, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sharon Castellanos's specialty?
- Sharon Castellanos is listed in the NPPES registry with a primary specialty of Community Health Registered Nurse (Nursing Service Providers).
- Where is Sharon Castellanos located?
- Sharon Castellanos's practice location on file with NPPES is 710 Lawrence Expy, Santa Clara, CA 95051-5173.
- What is Sharon Castellanos's phone number?
- The practice phone number listed in the NPPES registry for Sharon Castellanos is (408) 851-3551.
- Is Sharon Castellanos's NPI active?
- Yes — Sharon Castellanos's NPI (1841300233) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.