NPPES file of Aug 9, 2026

Sharon Ann Castellanos, WHNP, CNS

Community Health Registered Nurse · Santa Clara, CA

Sharon Ann Castellanos, WHNP, CNS is a community health registered nurse with a practice address in Santa Clara, California, and NPI 1841300233, issued on Aug 30, 2006. Check the license (California 37566, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1841300233
Name
Sharon Ann Castellanos
Credential
WHNP, CNS
Primary taxonomy
Community Health Registered Nurse 163WC1500X
License numbers
37566 CA
2622 CA
3773 CA
378650 CA
Self-reported in NPPES; status is on the state search
Practice location
710 Lawrence Expy, Santa Clara, CA 95051
Phone
(408) 851-3551
Enumerated
Aug 30, 2006
Record last updated
Sep 11, 2025
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest community health registered nurse records → All 1,083 in California → Look up another NPI →

Also registered at 710 Lawrence Expy

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Iype Abraham, M.D.Internal Medicine Physician1578737243
  2. Oren Abramson, MDPediatric Gastroenterology Physician1265511307
  3. Jamie Adiarte, PA-CPhysician Assistant1073824413
  4. Sarah Adut, PHDClinical Psychologist1609484831
  5. Najla Ahmadzia, M.D.Student in an Organized Health Care Education/Training Program1568692580
  6. Farhana Ahmed, MDHospitalist Physician1215110002

Verify Sharon Ann Castellanos in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 37566    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Industry payments in 2024: $22.63

1 payment: food and beverage; the largest payer was Dexcom, Inc. The 43 providers of this specialty with any payment received $112.13 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Sharon Castellanos$22.63
  2. Specialty average$112.13

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Sharon Ann Castellanos among 1,083 community health registered nurse records in California

Sharon Ann Castellanos, WHNP, CNS is one of 1,083 community health registered nurse records with a practice address in California. 2% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 0% of them.

  • NPI issued2006 · 0% of these records are older, 93% newer
  • In a Medicare fileYes · 2% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2025 · 80% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 163WC1500X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Community Health Registered Nurse providers in California

There are 1,083 community health registered nurse records in California.

All 1,083 in California → Every provider in Santa Clara → Community Health Registered Nurse nationwide →

The 8 community health registered nurse records with the nearest ZIP codes

  1. Barbara Allen-Young, RN, BSN, PHNSanta Cruz, CA 950601932421948
  2. Claire AllisonSanta Cruz, CA 950601831383785
  3. Nicole BenjaminSanta Cruz, CA 950601356535587
  4. Y. Corby, CNMSanta Cruz, CA 950601992841258
  5. Nancy DiehlSanta Cruz, CA 950601922291947
  6. Lynda Lewit, RN PHNSanta Cruz, CA 950601710170147
  7. Sandra O'Leary, R.N. P.H.N.Santa Cruz, CA 950601932392362
  8. Danielle Obinger, R.N.Santa Cruz, CA 950601205221538

Common questions

What is Sharon Ann Castellanos, WHNP, CNS's NPI number?

Sharon Ann Castellanos, WHNP, CNS's National Provider Identifier (NPI) is 1841300233, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Sharon Ann Castellanos, WHNP, CNS located?

The NPPES record lists a practice address at 710 Lawrence Expy, Santa Clara, CA, 95051. Phone: (408) 851-3551. Providers update this record themselves, so call before visiting.

How can I verify Sharon Ann Castellanos, WHNP, CNS's license?

NPPES lists California license number 37566, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.