NPPES file of Aug 9, 2026

Chiropractor in California

11,498 NPPES records list chiropractor with a practice address in California, 30 per 100,000 residents, the 22nd 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 149 of 230.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 111N00000X · 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, 531

  1. San Diego531
  2. Los Angeles525
  3. San Jose371
  4. San Francisco326
  5. Sacramento160

Chiropractor records in California

  1. Matthew Nichols, DCFresno, CA 937201437073095
  2. Ryan Nichols, DCCosta Mesa, CA 926261841899812
  3. David Nicklas, D.C.Paso Robles, CA 934461083656052
  4. John Nicola, DCCarson, CA 907451477632644
  5. Gregory Nicosia, D.C.San Diego, CA 921161508244757
  6. Conrad Nieh, D.C.San Francisco, CA 941021447209044
  7. Ea Nielsen, DCSan Jose, CA 951171396939872
  8. Marianne Nielsen, DCLos Gatos, CA 950301437350949
  9. Monty Nielsen, D.C.Atascadero, CA 934221306025952
  10. Kathryn Nielsen-Wines, D.C.Beaumont, CA 922231063503118
  11. Edward NiemanColton, CA 923241518245208
  12. Ruth Niemi, DCFresno, CA 937101013055789
  13. John Nieruchalski, D.C.Riverside, CA 925031750706016
  14. Augustine Nieto, D.C.Irvine, CA 926201891180790
  15. Raja NijimChico, CA 959281043088107
  16. Kulvir Nijjar, DCElk Grove, CA 957581942052121
  17. Osama Nijmeh, D.C.Gilroy, CA 950201770639296
  18. Samad Nik Khahbahrami, DCWoodland Hills, CA 913671932041761
  19. Pantea NikaeenEncino, CA 913161558711929
  20. Rooza Nikaiyn, D.C.Glendale, CA 912031457636607
  21. Marina Nikiforova, D.C.Playa Vista, CA 900941285168955
  22. Siavash NikkhouOntario, CA 917621457957169
  23. Alireza Nikroo, D.C.Irvine, CA 926121841699923
  24. Renee Nikula, D.C.Roseville, CA 956781679698096
  25. Saharut Nilchavee, D.C.Alhambra, CA 918031265506018
  26. Susan Nilmeier, D.C.Pacific Grove, CA 939501790813335
  27. Eric Nilsen, D.C.Carson, CA 907461760755904
  28. Kenneth Nilsson, D.C.Orange, CA 928691962628560
  29. Neda Nima, DCRancho Santa Margarita, CA 926881558171066
  30. Greg Ninberg, D.C.Lemon Grove, CA 919451396156469
  31. Jeffrey Ninberg, D.C.San Diego, CA 921111831129618
  32. Debra Nino, D.C.Westlake Village, CA 913621245321850
  33. Gustavo Nino, D.C.Alhambra, CA 918011568685915
  34. Puneet Nirankari, DCAntioch, CA 945311437940939
  35. Joanne Nishii, DCCorona, CA 928821457189490
  36. Brian Nishimoto, D.C.Los Angeles, CA 900241467438507
  37. Archer NishiokaPorter Ranch, CA 913261548009764
  38. Kent Nishiya, DCRedondo Beach, CA 902781912631383
  39. Brandon Nissen, DCAntioch, CA 945311508565169
  40. Scott Nissenbaum, DCSan Carlos, CA 940701851694541
  41. Golan Nissim, D.C., A.R.T., Q.M.E.Toluca Lake, CA 916021932270147
  42. Roy Nissim, D.C.Toluca Lake, CA 916021164678595
  43. Christopher Nizer, D.C.El Cerrito, CA 945301801285002
  44. Jacqueline Noborikawa, DCArtesia, CA 907011780313957
  45. James Noe, DCLos Angeles, CA 900151215140603
  46. Chad Noel, D.C.Corona, CA 928821659625036
  47. Clayton Noel, DCLaguna Hills, CA 926531447326103
  48. Jonathan Noel, DCMission Viejo, CA 926911124498993
  49. Richard Nohrden, DCWatsonville, CA 950761841235751
  50. William Nojima, DCLos Angeles, CA 900661073544003

Source: CMS NPPES, primary taxonomy 111N00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 22 of 51 per resident

  1. Michigan30
  2. Pennsylvania30
  3. Maine30
  4. California30
  5. Georgia29
  6. Wyoming29
  7. 50 states and D.C.29

Source: CMS NPPES, primary taxonomy 111N00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

7.0% of these records appear in a Medicare file, against 16.9% 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. California7.0%
  2. United States16.9%

Chiropractor records in California, measured

  • In a Medicare file809 of 11,498 · 7.0% here, 16.9% nationally
  • In the CMS Doctors and Clinicians file2,911 · 25.3% here, 39.8% nationally
  • Not updated in five years or more8,830 · 76.8% here, 72.3% nationally
  • Median graduation year1999 · the 2,907 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 111N00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

11,498 NPPES records list chiropractor (111N00000X) as their primary taxonomy with a practice address in California: 30 per 100,000 residents against 29 nationally (50 states and D.C.). San Diego has 531 of them (5%).

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. Texas6,979
  2. Florida6,967
  3. New York4,573
  4. Illinois4,524

States with a similar rate per 100,000

  1. Georgia29.5
  2. Wyoming29.3
  3. Maine29.9
  4. Pennsylvania30.4

The largest states

  1. Texas6,979
  2. Florida6,967
  3. New York4,573
  4. Illinois4,524
  5. Pennsylvania3,934

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.