NPPES file of Aug 9, 2026

Pediatrics Physician in California

9,272 NPPES records list pediatrics physician with a practice address in California, 24 per 100,000 residents, the 14th highest rate of 51. Los Angeles and San Francisco have the most; each record links to the provider's NPI and the California license search. Page 142 of 186.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 208000000X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Los Angeles has the most, 919

  1. Los Angeles919
  2. San Francisco514
  3. San Diego454
  4. Oakland338
  5. Palo Alto321

Pediatrics Physician records in California

  1. Alisa RoysmanLos Angeles, CA 900271962847806
  2. Anna Roysman, MDCarmichael, CA 956081063503464
  3. Boris Rozen, MDVallejo, CA 945891659459485
  4. Santiago RozoMountain View, CA 940401093274821
  5. Gregory Rozycki, M.D.San Leandro, CA 945771528146388
  6. Jose Rua, MDEscondido, CA 920251699771881
  7. Andrea RubalcavaLos Angeles, CA 900421619553310
  8. Laurie Rubenstein, MDRedwood City, CA 940631235149436
  9. Stuart Rubenstein, MDSan Diego, CA 921301689633844
  10. Sarah Ruberman, M.D.Mammoth Lakes, CA 935461225490659
  11. Deborah Rubin, M.D.Encino, CA 913161992885909
  12. Elizabeth Rubin, MDNapa, CA 945581528146339
  13. Nathalie Rubin, M.D.Thousand Oaks, CA 913201871564443
  14. Sandra Rubin, MDSanta Rosa, CA 954031407935547
  15. Valerie Rubin, M. D.Encinitas, CA 920241588773519
  16. Benjamin Rubinstein, MDLos Angeles, CA 900341962527473
  17. Samuel RudnickLos Angeles, CA 900951407558737
  18. Andrea Rudominer, MDSan Jose, CA 951191326124835
  19. Theodore Ruel, M.D.San Francisco, CA 941101780610832
  20. Maria Cecilia Rueras, MDBakersfield, CA 933111669435491
  21. Joel Ruff, M.D.San Diego, CA 921341073584025
  22. Charles Ruhlin, M.D.San Francisco, CA 941431982711974
  23. Angelica Ruiz, M.D.San Jose, CA 951271720179989
  24. Cara Ruiz, M.D.Orange, CA 928671457458135
  25. Donna Ruiz, M.D.Temecula, CA 925911952482200
  26. Evette Ruiz, M.D.Bell Gardens, CA 902011255432118
  27. Jaime Ruiz, MDSan Francisco, CA 941101073695094
  28. Juan Ruiz, MDBellflower, CA 907061396893350
  29. Maribel Ruiz, M.D.San Jose, CA 951161043474067
  30. Melissa Ruiz, M.D.Ventura, CA 930031376795377
  31. Michael Ruiz, MDSan Ramon, CA 945831588632673
  32. Jorge Ruiz Rivera, M.D.Tulare, CA 932741124173794
  33. Monica Ruiz-Cangco, D.O.Madera, CA 936361952715815
  34. Luis Ruiz-Restrepo, M.D.Tehachapi, CA 935611235550245
  35. Cristian Ruiz-Ruiz, MDLong Beach, CA 908131437610979
  36. Tiranun Rungvivatjarus, M.D.San Diego, CA 921231407276363
  37. Randi Rupp, DOOceanside, CA 920571245764646
  38. Kathleen Ruppel, M.D.San Francisco, CA 941431669553947
  39. Maria Rusch, M.D.Porterville, CA 932571154371292
  40. Philip Rush, M.D.Walnut Creek, CA 945961922023993
  41. Shirley Russ, M.D.Los Angeles, CA 900481548393382
  42. Anthony Russell, M.D.Ventura, CA 930031912085697
  43. Christopher Russell, MD, MSPalo Alto, CA 943041568699668
  44. Hubert Russell, M.D.Culver City, CA 902321114062445
  45. Jean Russell, M.D.Fresno, CA 937201124462635
  46. Samuel Russell, MDSan Diego, CA 921231215564265
  47. Sudha Russell, MDSanta Maria, CA 934541528037892
  48. Joanna Ruthenberg, M.D.Oakland, CA 946011669481214
  49. Michelle RybkaSan Francisco, CA 941431093169336
  50. Antoune Saad, MDUpland, CA 917861679587067

Source: CMS NPPES, primary taxonomy 208000000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 14 of 51 per resident

  1. Illinois25
  2. Ohio25
  3. Missouri25
  4. California24
  5. New Hampshire24
  6. New Jersey23
  7. 50 states and D.C.22

Source: CMS NPPES, primary taxonomy 208000000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

30.5% of these records appear in a Medicare file, against 36.4% 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. California30.5%
  2. United States36.4%

Pediatrics Physician records in California, measured

  • In a Medicare file2,831 of 9,272 · 30.5% here, 36.4% nationally
  • In the CMS Doctors and Clinicians file754 · 8.1% here, 8.7% nationally
  • Not updated in five years or more6,017 · 64.9% here, 58.4% nationally
  • Median graduation year2012 · the 754 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 208000000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

9,272 NPPES records list pediatrics physician (208000000X) as their primary taxonomy with a practice address in California: 24 per 100,000 residents against 22 nationally (50 states and D.C.). Los Angeles has 919 of them (10%).

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. New York5,795
  2. Texas5,641
  3. Florida3,996
  4. Pennsylvania3,382

States with a similar rate per 100,000

  1. New Hampshire23.5
  2. New Jersey23.5
  3. Virginia23.2
  4. American Samoa22.8

The largest states

  1. New York5,795
  2. Texas5,641
  3. Florida3,996
  4. Pennsylvania3,382
  5. Illinois3,176

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.