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 98 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. Heather Ott, MS, RDNSan Diego, CA 921171073176467
  2. Katie Ott, RDModesto, CA 953551467095729
  3. Katrina Otten, RDBishop, CA 935141497907299
  4. Marisa Ottoman, RDSan Francisco, CA 941431174249023
  5. Chika OuCorona, CA 928811992661540
  6. Maya Oueichek, RDNFullerton, CA 928311932077708
  7. Bronson Ouellette, RDOceanside, CA 920571487481693
  8. Patricia Ouellette Lague, RDSan Diego, CA 921611053323188
  9. Suzanne Ousey, REGISTERED DIETITIANSan Jose, CA 951271265260897
  10. Meiling Ouyang, M.P.H., R.D.Cupertino, CA 950141972625911
  11. Ilda OvalleSanta Maria, CA 934551326266990
  12. Cidney Overly, RDLos Angeles, CA 900381790475903
  13. Karmen Ovsepyan, MS, RDPorter Ranch, CA 913261124577630
  14. Maryelizabeth Owen, RDLos Angeles, CA 900271326572496
  15. Christine Owyang, RDSan Francisco, CA 941181831403609
  16. Erin Oxenham, R.D.San Francisco, CA 941091720225303
  17. Cassidy Ozowara, MS, RDNSan Carlos, CA 940701790511137
  18. Michael Paalani, RDApple Valley, CA 923081861766685
  19. Patrick Pablo, R.D.La Jolla, CA 920371548623945
  20. Mark Pacelli, RDSan Francisco, CA 941321629393855
  21. Lorena Pacheco, R.D.San Diego, CA 921111316260466
  22. Marcelle Pacheco, RDCampbell, CA 950081235055831
  23. Charlyne Pack, R.D.Escondido, CA 920261770602138
  24. Francine Pack, RD CDCESSan Jose, CA 951231689433294
  25. Nina Paddock, MPH, RDNLa Canada Flintridge, CA 910111306765425
  26. Agnes Padernal, RDSan Diego, CA 921131134856818
  27. Edward Padilla, MA, MS, RDNPoway, CA 920641013766393
  28. Rebekah Padilla, RDNLake Elsinore, CA 925301770200701
  29. Analilia Padilla-Corona, RDChula Vista, CA 919131114048352
  30. Nicholas Padula, RDLong Beach, CA 908021447913827
  31. Lora Paelicke, RDLos Angeles, CA 900271588827364
  32. Jennifer PaezRiverside, CA 925011851300339
  33. Margaret Pagaduan, MS, RDAntioch, CA 945311609055060
  34. Leila Page, RDNCosta Mesa, CA 926271225646086
  35. Maria Rica Paglieri, DIETITIANPalo Alto, CA 943041104930551
  36. Pilar PaguiaGlendale, CA 912021295661882
  37. Sheena PaguioSan Francisco, CA 941211265882047
  38. Sun-Young PaikVacaville, CA 956871003737800
  39. Ashley Painter, RDGlendale, CA 912011114542362
  40. Helen Pak, M.A., R.D.Campbell, CA 950081710001060
  41. Sahra Pak, RDTravis Afb, CA 945351669082897
  42. Carley Pakalski, RD, RDNOceanside, CA 920561629810023
  43. Kelsea Palace, RDCamarillo, CA 930101376906594
  44. Cecilia Palacios, R.D.Santa Maria, CA 934551902114663
  45. Yesenia Palacios, RDDaly City, CA 940151285428383
  46. Angelica Palad, RDWestminster, CA 926831891650941
  47. Uma Palaniappan, MS, RDSan Jose, CA 951191235277955
  48. Karmen Paley-Blount, M.S., R.D.Campbell, CA 950081851835466
  49. Mark Palmer, M.S., R.D., C.N.I.S.Loma Linda, CA 923571326150392
  50. Nicole Palomino, MS, RDLa Jolla, CA 920371003516576

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.