NPPES file of Aug 9, 2026

William Swezea, RCP

Neonatal/Pediatric Registered Respiratory Therapist · Downey, CA

William Swezea, RCP is a neonatal/pediatric registered respiratory therapist with a practice address in Downey, California, and NPI 1255813697, issued on Sep 1, 2018. Check the license (California 31642, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1255813697
Name
William Swezea
Credential
RCP
Primary taxonomy
Neonatal/Pediatric Registered Respiratory Therapist 2279P3900X
License number
31642 CA
Self-reported in NPPES; status is on the state search
Practice location
9333 Imperial Highway, Downey, CA 90242
Phone
(562) 657-6959
Enumerated
Sep 1, 2018
Record last updated
Sep 1, 2018 (not updated in 8 years: call before relying on the address or phone)
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 neonatal/pediatric registered respiratory therapist records → All 96 in California → Look up another NPI →

Also registered at 9333 Imperial Highway

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

  1. Christine Chavez-Eslao, D.O.Anesthesiology Physician1043535966
  2. Stephen Chen, M.D.Internal Medicine Physician1083844179

Verify William Swezea 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 31642    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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William Swezea among 96 neonatal/pediatric registered respiratory therapist records in California

William Swezea, RCP is one of 96 neonatal/pediatric registered respiratory therapist records with a practice address in California. 0% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2018, is newer than 32% of them.

  • NPI issued2018 · 32% of these records are older, 28% newer
  • In a Medicare fileNo · 0% of these records are
  • In the CMS Doctors and Clinicians fileNo · 0% of these records are
  • Record last updated2018 · 71% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2279P3900X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neonatal/Pediatric Registered Respiratory Therapist providers in California

There are 96 neonatal/pediatric registered respiratory therapist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 96 in California → Every provider in Downey → Neonatal/Pediatric Registered Respiratory Therapist nationwide →

The 8 neonatal/pediatric registered respiratory therapist records with the nearest ZIP codes

  1. John Bonoan, RTDowney, CA 902421972085314
  2. Mack CarterDowney, CA 902421144087867
  3. Gregory Clinton, RRTDowney, CA 902421730945502
  4. Cathrine Guanzon, RCPDowney, CA 902421881175511
  5. Nilcri Massey, RCP-RRTDowney, CA 902421770341604
  6. Elisa Mendoza, RRT-NPSDowney, CA 902421780441212
  7. Sherryn Ortiga, RRT-NPS, BSDowney, CA 902421124500111
  8. Alan QuirozDowney, CA 902421013489103

Common questions

What is William Swezea, RCP's NPI number?

William Swezea, RCP's National Provider Identifier (NPI) is 1255813697, issued on Sep 1, 2018. An NPI identifies a provider in billing; it is not a license.

Where is William Swezea, RCP located?

The NPPES record lists a practice address at 9333 Imperial Highway, Downey, CA, 90242. Phone: (562) 657-6959. Providers update this record themselves, so call before visiting.

How can I verify William Swezea, RCP's license?

NPPES lists California license number 31642, 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. 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.