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 94 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. Mei Ng, R.D.San Leandro, CA 945771457418725
  2. Nicole NgBakersfield, CA 933081154712099
  3. Ryan Ng, RDSan Francisco, CA 941331720953672
  4. Tsz-Kan Ng, R.D.Oakland, CA 946071598095739
  5. Maritza Ng DuSan Francisco, CA 941331366908386
  6. Josephine NgaiModesto, CA 953501558037242
  7. Rachel Ngai, RDBakersfield, CA 933011861871816
  8. Cam NgoWestminster, CA 926831891501102
  9. Alexandria Nguyen, RDTorrance, CA 905021922683895
  10. Angel NguyenSan Francisco, CA 941161265994370
  11. Anh Nguyen, RDOrange, CA 928681770263345
  12. Ashley Nguyen, RDSan Francisco, CA 941331245077643
  13. Bangtam Nguyen, R.D.Long Beach, CA 908221750609715
  14. Caitlin NguyenLincoln, CA 956481487070298
  15. Cammie NguyenAnaheim, CA 928071770978348
  16. Danny Nguyen, RDSanta Clara, CA 950511912350174
  17. Diem Nguyen, RDNSimi Valley, CA 930651972000685
  18. Elizabeth Nguyen, RDTustin, CA 927801205312634
  19. Hienanh NguyenLos Angeles, CA 900331922599679
  20. Huong NguyenSan Jose, CA 951211073009502
  21. Janee Nguyen, RDSan Jose, CA 951481881063907
  22. Jenny Nguyen, MS, RDTorrance, CA 905021710458393
  23. Jenny Nguyen, RDNorwalk, CA 906501457614547
  24. Linh Nguyen, RDPalo Alto, CA 943041841056694
  25. Linh Nguyen, RDSan Jose, CA 951111508616541
  26. Linh Nguyen, RDNFrench Camp, CA 952311437876398
  27. Mylinh Nguyen, RDNFallbrook, CA 920281427886290
  28. Thien An Nguyen, MPH, RDRoseville, CA 956611235760372
  29. Tiffany Nguyen, MS, RDSan Francisco, CA 941331720888639
  30. Tina NguyenSan Jose, CA 951121619756541
  31. Tracey Nguyen, RDSanta Clara, CA 950541295221794
  32. Tu Nguyen, RDGarden Grove, CA 928431588090906
  33. Xuanmai NguyenFountain Valley, CA 927081083022941
  34. Valerie Nhan, RDNRedwood City, CA 940621699565598
  35. Kristen Nhial, MS, RDChino Hills, CA 917091174021091
  36. Alexandra Niazi, RDMonte Sereno, CA 950301861119992
  37. Jana Nicholl, MS, RD, IBCLCTorrance, CA 905021346693306
  38. Kathleen Nichols, R.D.Healdsburg, CA 954481346548716
  39. Lily Nichols, R.D.Torrance, CA 905021386917169
  40. Michelle Nichols, MS, RDNOceanside, CA 920561124562558
  41. Brandi Nicholson, RDN, IBCLCLos Angeles, CA 900441588018907
  42. Michele NicoloLos Angeles, CA 900951699187294
  43. Laura NieberdingSan Francisco, CA 941321851564728
  44. Flannery NielsenSan Diego, CA 921231184227472
  45. Mary Nieraeth, RDDowney, CA 902401881045870
  46. Reetu Nigam, RDFremont, CA 945381235625054
  47. Avtar NijjerFresno, CA 937111730040122
  48. Sepideh NikkhahWoodland, CA 957761720962814
  49. Argavan Nilforoush, RDOakland, CA 946091649523267
  50. Tianna Nilsen, M.S., R.D.Murrieta, CA 925631558895383

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.