NPPES file of Aug 9, 2026

Certified Respiratory Therapist in California

368 NPPES records list certified respiratory therapist with a practice address in California, 0.9 per 100,000 residents, the 6th highest rate of 48. Los Angeles and Irvine have the most; each record links to the provider's NPI and the California license search. Page 8 of 8.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 227800000X · method

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

Los Angeles has the most, 55

  1. Los Angeles55
  2. Irvine20
  3. Downey19
  4. Torrance19
  5. French Camp16

Certified Respiratory Therapist records in California

  1. Scott WilliamsTorrance, CA 905021467957415
  2. Ayesha WilliamsonTorrance, CA 905021831601194
  3. Ann WloszekMartinez, CA 945531881158038
  4. Linda WongSouth San Francisco, CA 940801982175964
  5. Thanh WongLos Angeles, CA 900331487178463
  6. Danny Woolever, RCPRichmond, CA 948011558833897
  7. Adam Wren, C.R.T.French Camp, CA 952311245459676
  8. Randy Wren, C.R.TFrench Camp, CA 952311891914230
  9. David WrightDowney, CA 902421649705955
  10. Sabrina Wright, RCPPanorama City, CA 914021013498245
  11. Julia WylyBakersfield, CA 933111629121777
  12. Matthew Ybarra, RCP, RRT-NPSRoseville, CA 956781295207157
  13. Victor Yee, RCPSan Francisco, CA 941211063507366
  14. Michael YinIrvine, CA 926181710466917
  15. Frances YniguezLos Angeles, CA 900331063936011
  16. Yonghong YuLos Angeles, CA 900271528542875
  17. Frank Zeledon, RTMurrieta, CA 925621659993566
  18. Cherry ZhangLos Angeles, CA 900271245715341

Source: CMS NPPES, primary taxonomy 227800000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 6 of 48 per resident

  1. Arizona1.1
  2. North Carolina1.0
  3. Arkansas1.0
  4. California0.9
  5. Wyoming0.9
  6. Florida0.8
  7. 50 states and D.C.0.5

Source: CMS NPPES, primary taxonomy 227800000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

0.0% of these records appear in a Medicare file, against 0.0% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. California0.0%
  2. United States0.0%

Certified Respiratory Therapist records in California, measured

  • In a Medicare file0 of 368 · 0.0% here, 0.0% nationally
  • In the CMS Doctors and Clinicians file0 · 0.0% here, 0.3% nationally
  • Not updated in five years or more309 · 84.0% here, 80.7% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 227800000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

368 NPPES records list certified respiratory therapist (227800000X) as their primary taxonomy with a practice address in California: 0.9 per 100,000 residents against 0.5 nationally (50 states and D.C.). Los Angeles has 55 of them (15%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Florida187
  2. North Carolina111
  3. Texas81
  4. Arizona80

States with a similar rate per 100,000

  1. Arkansas1.0
  2. Tennessee0.8
  3. Puerto Rico0.6
  4. Oklahoma0.5

The largest states

  1. Florida187
  2. North Carolina111
  3. Texas81
  4. Arizona80
  5. Nevada63

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record is not a license.

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.