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 21 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. Amy Chalker, RDSanta Barbara, CA 931011295366920
  2. Mary Champeny, RDSacramento, CA 958201285354795
  3. Emily Champoux, MPH, RDSan Francisco, CA 941051952943250
  4. Annie Chan, MS, RDSan Francisco, CA 941431487660064
  5. Cecilia Chan, RDMonterey Park, CA 917541205245883
  6. Eliza ChanDublin, CA 945681134294424
  7. Frances Chan, RDNSan Francisco, CA 941211598388787
  8. Ian Lei Chan, REGISTERED DIETITIANAlhambra, CA 918031194296509
  9. Jemimah Chan, RDCampbell, CA 950081982346532
  10. Jenny Chan, RDNewport Beach, CA 926601386133114
  11. Karen Chan, RDN OR RDLos Angeles, CA 900171538866546
  12. Karen Chan, RDTorrance, CA 905021669869277
  13. Mabel Chan, R.D.San Leandro, CA 945771417010406
  14. Melanie Chan, MPH, RD, CNSCSacramento, CA 958171194311084
  15. Michelle Chiu Man Chan, RDRiverside, CA 925051528700622
  16. Olivia ChanBaldwin Park, CA 917061750752127
  17. Onki Chan, MS, RDSunland, CA 910401619446143
  18. Shing Chan, MS, RDNPleasanton, CA 945881366311318
  19. Tamei Chan, RDPalo Alto, CA 943041104840081
  20. Teresa Chan, RDSan Francisco, CA 941101336022607
  21. Trudy Chan, R.D.Woodland, CA 956951073636833
  22. Vickie Chan, MS, RDDuarte, CA 910101366783839
  23. Yuk-Kei Chan, RD, CDEOrange, CA 928681437375599
  24. Gina Chandler, MS, RDNSanta Ynez, CA 934601194850602
  25. Annie Chandy, R.D.San Leandro, CA 945771710267026
  26. Jillian Chaney, RDNSan Clemente, CA 926731376151563
  27. Christy Chang, RDNArcadia, CA 910071295318491
  28. Jennifer Chang, RDLos Angeles, CA 900341275658460
  29. Kelly Chang, RDSanta Monica, CA 904051790335396
  30. Lesley Chang, RDSan Leandro, CA 945771073325544
  31. Lori ChangLos Angeles, CA 900561699208330
  32. Olivia Chang, RDSan Leandro, CA 945771669825758
  33. Rachel Chang, M.S., R.D.South San Francisco, CA 940801922162973
  34. Niramol Chankitwanit, R.D.Los Angeles, CA 900331619218443
  35. Dorothea Chapa, R.D.,CDEMountain View, CA 940401245560754
  36. Kathleen Chapel, RDNGreenbrae, CA 949041881474013
  37. Andrea Chapin, RDLodi, CA 952401477837854
  38. Catherine Chapmon, R.D.Los Angeles, CA 900271659521458
  39. Chassitie Char, RDNPerris, CA 925701992432124
  40. Kathryn Charbonneau, R.D., CNSDVacaville, CA 956881841351756
  41. Sharon Charles, RDTemecula, CA 925911518721810
  42. Olivia Charlton, RD, CDELaguna Hills, CA 926531811138183
  43. Sarah Charton, RDLos Torrance, CA 905031295378552
  44. Jo Chase, RDClovis, CA 936121508907197
  45. Tahara Chatham, RDChula Vista, CA 919111285026856
  46. Lydia Chau, RDLos Angeles, CA 900241821630872
  47. Nhan ChauClovis, CA 936191790626794
  48. Pauline Chau, RD, CDCESBurlingame, CA 940101700477932
  49. Stacey Chau, M.S, RDSan Jose, CA 951191649486473
  50. Lisa Chaudoin, RDLos Gatos, CA 950321093234510

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.