NPPES file of Aug 9, 2026

Registered Respiratory Therapist in California

1,082 NPPES records list registered respiratory therapist with a practice address in California, 2.8 per 100,000 residents, the 5th highest rate of 51. Los Angeles and San Diego have the most; each record links to the provider's NPI and the California license search. Page 5 of 22.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 227900000X · 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, 200

  1. Los Angeles200
  2. San Diego66
  3. Santa Clara54
  4. Sacramento36
  5. Downey35

Registered Respiratory Therapist records in California

  1. Rowena CrisostomoLos Angeles, CA 900331821747239
  2. Chadrick CrowellPalo Alto, CA 943041023584794
  3. John Kris CruzSan Francisco, CA 941121033681911
  4. Marinel Cruz, RRTVallejo, CA 945891184188542
  5. Mia Cullen, RCPLos Angeles, CA 900331639696677
  6. Jayson Curammeng, RRT, SDSSan Jose, CA 951191497448989
  7. Theresa Curran, RCP/RRTSanta Rosa, CA 954031336603299
  8. Brianna Cuthbertson, RRT, RCPLos Angeles, CA 900341649758715
  9. Jeffrey DageletSouth San Francisco, CA 940801578034757
  10. Alan DalySan Leandro, CA 945771376016139
  11. Thuc Dam, RTSan Diego, CA 921201720567589
  12. Erin DanforthModesto, CA 953561699239210
  13. Philip DangSanta Clara, CA 950511427528264
  14. Ara DanielyanPanorama City, CA 914021881208072
  15. Nina DardenSanta Clara, CA 950511255801957
  16. Erick Dargin, RCPTorrance, CA 905021013429117
  17. Regina Dashevsky, RRTSan Francisco, CA 941211346341500
  18. Kevin DatorFontana, CA 923351154809895
  19. Paula Daugherty, RRT-NPSOakland, CA 946111356813489
  20. Jellie David, RRT, RCPHarbor City, CA 907101255002689
  21. Lisa Davies, RCP, RRTUnion City, CA 945871255897492
  22. Connie DavilaSacramento, CA 958231407328743
  23. Asheion Davis, RRT-RCPFontana, CA 923351588440887
  24. John Davis, RCP,RRT,RRT-NPS,CPFTAnaheim, CA 928061922341320
  25. Keondra Davis, RRTSan Francisco, CA 941431346860301
  26. Melissa Dayao, RRTSouth San Francisco, CA 940801508338088
  27. Jacqueline De GuzmanSan Diego, CA 921231972083491
  28. Lester De Guzman, RRTFontana, CA 923351467936872
  29. Jacqueline De Haro, RCPBaldwin Park, CA 917061922588326
  30. Denise De La CruzLos Angeles, CA 900331588265953
  31. Trisha De Leon, RESPIRATORY THERAPISVacaville, CA 956881417421397
  32. Kevin De Los SantosPanorama City, CA 914021730664749
  33. Jason De Luna, RCP, RRTArleta, CA 913311740760057
  34. Michael Eugene De Peralta, RCPOakland, CA 946111891267829
  35. Maria DeanDowney, CA 902421649751868
  36. Cheryl Decarlo, RRTWalnut Creek, CA 945961881168037
  37. Elizabeth Deharo, RRT,RCPRiverside, CA 925051063791697
  38. Marlyn Del AguilaLos Angeles, CA 900731104717248
  39. Nicole Del Rosario, RRTSacramento, CA 958171992115117
  40. Ted DelacruzSan Leandro, CA 945771134699457
  41. Janet Delrosario, RCPDowney, CA 902421265046189
  42. Jeffrey DemayoPalo Alto, CA 943041164250593
  43. Jared Dennison, RCPSan Diego, CA 921201770062200
  44. John Derenzy, RRTSanta Rosa, CA 954031861068801
  45. Rachna DesaiSanta Clara, CA 950511013487644
  46. Darren DevosLos Angeles, CA 900331699516385
  47. Andrew Diaz, RRTChula Vista, CA 919111942627609
  48. Jesssica DiazLos Angeles, CA 900331194303313
  49. Lisa Diaz, RRTPanorama City, CA 914021477037471
  50. Ramon DiazDowney, CA 902421740757533

Source: CMS NPPES, primary taxonomy 227900000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 5 of 51 per resident

  1. South Dakota4.1
  2. Alaska3.3
  3. North Dakota2.8
  4. California2.8
  5. Arizona2.6
  6. Florida2.6
  7. 50 states and D.C.1.3

Source: CMS NPPES, primary taxonomy 227900000X 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 under 0.1% 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%

Registered Respiratory Therapist records in California, measured

  • In a Medicare file0 of 1,082 · 0.0% here, under 0.1% nationally
  • In the CMS Doctors and Clinicians file2 · 0.2% here, 0.2% nationally
  • Not updated in five years or more835 · 77.2% here, 62.9% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 227900000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,082 NPPES records list registered respiratory therapist (227900000X) as their primary taxonomy with a practice address in California: 2.8 per 100,000 residents against 1.3 nationally (50 states and D.C.). Los Angeles has 200 of them (18%).

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. Florida582
  2. Texas212
  3. Arizona194
  4. Washington183

States with a similar rate per 100,000

  1. North Dakota2.8
  2. District of Columbia2.5
  3. Alaska3.3
  4. New Mexico2.0

The largest states

  1. Florida582
  2. Texas212
  3. Arizona194
  4. Washington183
  5. North Carolina171

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.