NPPES file of Aug 9, 2026

Dental Hygienist in California

1,874 NPPES records list dental hygienist with a practice address in California, 4.8 per 100,000 residents, the 19th highest rate of 51. San Diego and Los Angeles have the most; each record links to the provider's NPI and the California license search. Page 25 of 38.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 124Q00000X · method

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

San Diego has the most, 110

  1. San Diego110
  2. Los Angeles91
  3. San Jose48
  4. Camp Pendleton35
  5. Loma Linda27

Dental Hygienist records in California

  1. Ngoc Lien Nguyen, RDHSan Jose, CA 951161962354423
  2. Paula NguyenGarden Grove, CA 928411134557978
  3. Quat Nguyen, RDHSan Diego, CA 921111477030211
  4. Thu Nguyen, DHSan Jose, CA 951381679017263
  5. Thu Phuong NguyenSan Jose, CA 951481457073751
  6. Thuy NguyenSacramento, CA 958231669155065
  7. Trang NguyenHawthorne, CA 902501699005280
  8. Truc Nguyen, RDHAPSan Diego, CA 921031487841441
  9. Vivian Nguyen, R.D.HHawthorne, CA 902501669610002
  10. Candace Niccolson, RDHAPNewark, CA 945601942628474
  11. Betzabee Nicolas GutierrezWatsonville, CA 950761053869677
  12. Kory Nieuwkoop, BS, RDH, RDHAPChowchilla, CA 936101720532450
  13. Kathlyn Ninomiya, R.D.H.Long Beach, CA 908221114031523
  14. Lauren Nitschke, RDHBishop, CA 935141235878612
  15. Maryam NorouzLos Angeles, CA 900241790293520
  16. Ana Nouranikhoshkho, RDHSan Jose, CA 951361902737109
  17. Jennifer Nowotney, RDHAPRancho Cucamonga, CA 917301811303357
  18. Irene Nydza, RDHAPWoodland Hills, CA 913641750636585
  19. Lauren O'Keefe, RDHFort Irwin, CA 923101598362253
  20. Ines O'Leary, RDHWalnut Creek, CA 945961104177328
  21. Maria Zholen Obis, RDHSan Leandro, CA 945781548708332
  22. Kimberly Ochoa, RDHAPMerced, CA 953401861558074
  23. Luna Ochoa, RDHHawthorne, CA 902501760814503
  24. Nancy OchoaSan Diego, CA 921021952692253
  25. Rafael Ochoa, RDHTustin, CA 927821063865509
  26. Jan Ochs, RDHAPLake Arrowhead, CA 923521922353929
  27. Ovsanna OdabashianValley Village, CA 916071609131648
  28. Rosa Oezdemir, RDHAP, RDHSaratoga, CA 950701881069979
  29. Joy Ogami Avila, RDHCulver City, CA 902301134014871
  30. Annik OhanessGlendale, CA 912021801521083
  31. Jessica OliverLakeside, CA 920401548117500
  32. Debra Olsen, HAPGlendale, CA 912021871796912
  33. Joan Ong, RDHAPPasadena, CA 911061639959125
  34. Arnold OquendoMurrieta, CA 925631689811127
  35. Nancy OrjiakorHawthorne, CA 902501891331302
  36. Thomas OrmsbyAlbany, CA 947061366394652
  37. Natalia Orosco Beresford, RDHValley Center, CA 920821366012346
  38. Nicole Ortega, R.D.H.A.P.Concord, CA 945191548637184
  39. Allison Ortiz, RDHYreka, CA 960971477998649
  40. Jose Ortiz, RDHParamount, CA 907231558600429
  41. Oscar Ortiz, RDHLos Angeles, CA 900011396507034
  42. Megumi Osakabe, R.D.H.Los Angeles, CA 900641437352481
  43. Maggie Oto, RDHAPSacramento, CA 958311568875136
  44. Amalia Ouzounian, RDHAPCarmichael, CA 956081790012433
  45. Tatevik Ovasapyan, RDHTujunga, CA 910421336786151
  46. Kardea OwensWildomar, CA 925951720812241
  47. Marcia Owens, RDHSan Diego, CA 921021326197328
  48. Patricia Owens, DENTAL HYGIENIST HAPSacramento, CA 958351295973386
  49. Maria Rhodora Pablo, RDHVandenberg Afb, CA 934371366588592
  50. Jennifer Pacheco, RDHTulare, CA 932741013349505

Source: CMS NPPES, primary taxonomy 124Q00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 19 of 51 per resident

  1. Missouri6.0
  2. Maryland5.1
  3. Vermont5.1
  4. California4.8
  5. Massachusetts4.8
  6. Tennessee4.6
  7. 50 states and D.C.4.7

Source: CMS NPPES, primary taxonomy 124Q00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

1.0% of these records appear in a Medicare file, against 1.8% 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. California1.0%
  2. United States1.8%

Dental Hygienist records in California, measured

  • In a Medicare file19 of 1,874 · 1.0% here, 1.8% nationally
  • In the CMS Doctors and Clinicians file2 · 0.1% here, under 0.1% nationally
  • Not updated in five years or more1,221 · 65.2% here, 65.1% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 124Q00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,874 NPPES records list dental hygienist (124Q00000X) as their primary taxonomy with a practice address in California: 4.8 per 100,000 residents against 4.7 nationally (50 states and D.C.). San Diego has 110 of them (6%).

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. Oregon1,167
  2. Colorado1,161
  3. Washington987
  4. Wisconsin935

States with a similar rate per 100,000

  1. Massachusetts4.8
  2. Tennessee4.6
  3. Vermont5.1
  4. Maryland5.1

The largest states

  1. Oregon1,167
  2. Colorado1,161
  3. Washington987
  4. Wisconsin935
  5. Michigan897

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.