NPPES file of Aug 9, 2026

Registered Nurse First Assistant in California

303 NPPES records list registered nurse first assistant with a practice address in California, 0.8 per 100,000 residents, the 17th highest rate of 51. Modesto and Ventura have the most; each record links to the provider's NPI and the California license search. Page 2 of 7.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 163WR0006X · method

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

Modesto has the most, 26

  1. Modesto26
  2. Ventura10
  3. Long Beach9
  4. Newport Beach8
  5. Truckee8

Registered Nurse First Assistant records in California

  1. Yanping ChenArcadia, CA 910071265384093
  2. Christina Christensen, CRNFARedding, CA 960031912079989
  3. Meredith Chubb, RNFALaguna Hills, CA 926531457086944
  4. Veronica Ciaccio, RNFAFresno, CA 937101093896136
  5. Nicole Cleaves, RNFASouth Lake Tahoe, CA 961501154599686
  6. Amanda CoffeyPanorama City, CA 914021730677717
  7. Jamie Conley-Douglas, RNFANapa, CA 945581679863898
  8. Michele Constantine, RNFAFountain Valley, CA 927081598132532
  9. Elaine Cook, RNFAMira Loma, CA 917521245528892
  10. Troy Cook, R.N.F.A., C.N.O.R.Woodland Hills, CA 913671861724841
  11. Irene Cortez, RNFAFresno, CA 937201033383492
  12. Michele Couey, R.N.F.ANewport Beach, CA 926631013128982
  13. Sharon Cummings, RNFAVentura, CA 930031538207774
  14. Regina Cunningham, RNFAVentura, CA 930031255139622
  15. Francis CuyuganBakersfield, CA 933061255226999
  16. Rene DarlingMission Viejo, CA 926921689841306
  17. Sara Davey, RN, CNOR, RNFARedlands, CA 923741235978719
  18. Dale Davis, RN CNOR RNFATruckee, CA 961611952503005
  19. Dianne Davis, RNFAModesto, CA 953551972667798
  20. Sharon Dawson, CRNFAYreka, CA 960971336261890
  21. Maria Renalyn De Gala, RNFASan Pedro, CA 907321073497350
  22. Cecelia Dean, RNFASanta Maria, CA 934541407879190
  23. Deanna Dean, BSN, RN, CNOR, RNASCMammoth Lakes, CA 935461881431369
  24. Joni Decarteret, RNFATruckee, CA 961611255542403
  25. Justin DeffebachClovis, CA 936111265255806
  26. Jomar Deliguin, RN, BSN, RNFA, CNORModesto, CA 953551265297790
  27. Usha Desai, RNFAOrange, CA 928691144357914
  28. Robin Devega, RNFASan Diego, CA 921231255018644
  29. Gary Diep, RN, CNOR, RNFAMurrieta, CA 925631407132442
  30. Natalia Dilday, RNFATustin, CA 927821962914226
  31. Kristen Dorough, RNFAMammoth Lakes, CA 935461730866922
  32. Monica Duran, RN, CNOR, RNFAVentura, CA 930031619269206
  33. Justin DyModesto, CA 953501720119753
  34. Annabelle Edquilang, RNFAMurrieta, CA 925631083181754
  35. Stephanie EhretFountain Valley, CA 927081689171159
  36. Nicholas Eldred, RNFAClovis, CA 936111235950213
  37. Mary Elliff, CRNFASanta Rosa, CA 954041245313477
  38. Norma Emery, RN,CCRN,CNORSanta Paula, CA 930601629101472
  39. Delia Epie, RNFAClovis, CA 936111851673487
  40. Melissa Esprio, RNFADowney, CA 902401538323035
  41. Prince Even Arden Eugenio, RN, CNOR, RNFABakersfield, CA 933061164230561
  42. Napoleon Evangelio, CRNFAModesto, CA 953551790612117
  43. Melody FarnhamTruckee, CA 961611306508536
  44. Ronald Fillmore, CRNFALong Beach, CA 908061003019282
  45. Susan Flax-Heyer, CRNFAChatsworth, CA 913111568440840
  46. Richard Florendo, RNFACorona, CA 928801962679928
  47. Kathleen Fodor, RNFAHuntington Beach, CA 926481104026335
  48. Kimberly Frank, RNFALadera Ranch, CA 926941730499328
  49. Karen Frinzi, RNFANewport Beach, CA 926601174769681
  50. Steve Frisby, RNFAMadera, CA 936361164015046

Source: CMS NPPES, primary taxonomy 163WR0006X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 17 of 51 per resident

  1. Florida1.0
  2. Georgia0.9
  3. Montana0.9
  4. California0.8
  5. Illinois0.7
  6. New York0.6
  7. 50 states and D.C.0.8

Source: CMS NPPES, primary taxonomy 163WR0006X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

2.6% of these records appear in a Medicare file, against 1.9% 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. California2.6%
  2. United States1.9%

Registered Nurse First Assistant records in California, measured

  • In a Medicare file8 of 303 · 2.6% here, 1.9% nationally
  • In the CMS Doctors and Clinicians file0 · 0.0% here, 0.7% nationally
  • Not updated in five years or more206 · 68.0% here, 74.6% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 163WR0006X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

303 NPPES records list registered nurse first assistant (163WR0006X) as their primary taxonomy with a practice address in California: 0.8 per 100,000 residents against 0.8 nationally (50 states and D.C.). Modesto has 26 of them (9%).

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. Texas310
  2. Florida215
  3. New Jersey213
  4. New York127

States with a similar rate per 100,000

  1. Illinois0.7
  2. Montana0.9
  3. Georgia0.9
  4. West Virginia0.6

The largest states

  1. Texas310
  2. Florida215
  3. New Jersey213
  4. New York127
  5. Washington124

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.