NPPES file of Aug 9, 2026

Registered Dietitian in California

7,148 NPPES records list registered dietitian with a practice address in California, 18 per 100,000 residents, the 35th 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 138 of 143.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 133V00000X · 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, 504

  1. San Diego504
  2. Los Angeles487
  3. San Francisco427
  4. Sacramento232
  5. San Jose151

Registered Dietitian records in California

  1. Cheyenne Williams, RDSan Francisco, CA 941041346162237
  2. Elaine Williams, PH.D. R.D.Los Angeles, CA 900621366770067
  3. Frances Williams, DIETITIANFullerton, CA 928381568853307
  4. Katherine WilliamsStockton, CA 952031417844929
  5. Lauren Williams, RDNVallejo, CA 945891164032116
  6. Lisa WilliamsYorba Linda, CA 928861356753263
  7. Margaret Williams, MS, RDSan Jose, CA 951281548439656
  8. Nicole Williams, MS, RDLa Mesa, CA 919411922964154
  9. Peter Williams, R.D.San Diego, CA 921201225225907
  10. Stewart Williams, RD, CSG, LDHealdsburg, CA 954481710426762
  11. Summer Williams, RDHalf Moon Bay, CA 940191013786482
  12. Susanna Williams, RDOceanside, CA 920561659064475
  13. Sybil Williams, RDFrench Camp, CA 952311902501349
  14. Tamal Williams, MS, RD, CDECarson, CA 907451194111716
  15. Tamara Williams, MS, RDNValencia, CA 913551831914894
  16. Gloria Williamson, REGISTERED DIETITIANPasadena, CA 911011053614990
  17. Karen Williamson, RDBaldwin Park, CA 917061639397623
  18. Kelly Wills, MS, RDAtascadero, CA 934221922629385
  19. Amber Wilson, MS, RDSouth Lake Tahoe, CA 961501245548189
  20. Brianna Wilson, MS, RD, CSSDSanta Maria, CA 934541306276613
  21. Jessica Wilson, RD,CDEFountain Valley, CA 927081932727245
  22. Julieanne Wilson, REGISTERED DIETITIANWhittier, CA 906021184247736
  23. Karly Wilson, RD, LDBakersfield, CA 933061750257721
  24. Leah Wilson, MS, RDCupertino, CA 950141851651418
  25. Loyanne WilsonSacramento, CA 958251366688244
  26. Martha Wilson, M.S., R.D.Campbell, CA 950081679781108
  27. Meagan Wilson, MS, RDN, LDConcord, CA 945201922697051
  28. Natalie Wilson, RDNapa, CA 945591144946716
  29. Pamela Wilson, R.D.San Ramon, CA 945831265766414
  30. Roxanne WilsonModesto, CA 953561659098929
  31. Suzanne Wimmer, R.D.Antioch, CA 945311851447940
  32. Krista Winchester, MA, RDOakland, CA 946121366206849
  33. Gregory Wine, MSRDSacramento, CA 958171801023973
  34. Erika Winkler, MS, RD, CNSC, CSOPasadena, CA 911051053947630
  35. Katrina Winsemius, MS, RD, LDSan Francisco, CA 941331730994419
  36. Megan Winslow, R.D.San Ramon, CA 945831346339488
  37. Rosemary Winslow, RDWoodacre, CA 949731437440401
  38. Amber Winter, RDClovis, CA 936111932381712
  39. Gay Winterringer, PHD, RDFremont, CA 945391649617580
  40. Sheila Winters, R.D.Carmichael, CA 956081649482431
  41. Ann Winterton, LCSWRoseville, CA 956611043630148
  42. Joanna Wirkus, RDSacramento, CA 958171215886940
  43. Jan Wirsching, RDSan Diego, CA 921031801612239
  44. Colleen WiseCamarillo, CA 930101366397945
  45. Kati Wise, MS, RD, LDTravis Afb, CA 945351619452018
  46. Kimberly Wisner, RD, LDNSan Diego, CA 921211285028001
  47. David Wiss, M.S., R.D.NBeverly Hills, CA 902111619353067
  48. Kathryn WistubaCarlsbad, CA 920081942165659
  49. Alisha Witham, RDSan Diego, CA 921081083340657
  50. Patricia Wittenberg, RDBeverly Hills, CA 902121972723534

Source: CMS NPPES, primary taxonomy 133V00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 35 of 51 per resident

  1. Hawaii19
  2. Arkansas19
  3. Louisiana19
  4. California18
  5. Maryland18
  6. Nebraska18
  7. 50 states and D.C.20

Source: CMS NPPES, primary taxonomy 133V00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

5.4% of these records appear in a Medicare file, against 7.4% 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. California5.4%
  2. United States7.4%

Registered Dietitian records in California, measured

  • In a Medicare file385 of 7,148 · 5.4% here, 7.4% nationally
  • In the CMS Doctors and Clinicians file531 · 7.4% here, 9.8% nationally
  • Not updated in five years or more3,904 · 54.6% here, 56.3% nationally
  • Median graduation year2014 · the 529 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 133V00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

7,148 NPPES records list registered dietitian (133V00000X) as their primary taxonomy with a practice address in California: 18 per 100,000 residents against 20 nationally (50 states and D.C.). San Diego has 504 of them (7%).

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. Texas5,099
  2. New York4,724
  3. Florida3,443
  4. Pennsylvania3,083

States with a similar rate per 100,000

  1. Maryland18.2
  2. Louisiana18.5
  3. Nebraska18.1
  4. Michigan18.1

The largest states

  1. Texas5,099
  2. New York4,724
  3. Florida3,443
  4. Pennsylvania3,083
  5. Illinois2,870

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.