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 124 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. Rosalynne Olshansky, M.D.Orange, CA 928681356729792
  2. Kaitlyn Olson, M.D.Santa Barbara, CA 931051720378748
  3. Rebecca OlvedaDublin, CA 945681003349135
  4. Nnennaya Omerigbo, DOLos Angeles, CA 900621922011816
  5. Keiichiro Omori, MDAnaheim, CA 928011588752315
  6. Omoniyi Omotoso, M.D., M.P.H., FAAPOakland, CA 946011871875344
  7. Jasmine Omrani, D.OHarbor City, CA 907101922337500
  8. Olga OnayRedwood City, CA 940631558580514
  9. Maureen Oneill, MDHawthorne, CA 902501114928744
  10. Cindy OngLos Angeles, CA 900271457714651
  11. Elaine Ong, M.D.Hayward, CA 945451053499806
  12. Ernesto Ong, M.D.Hacienda Heights, CA 917451114009677
  13. Feng Ong, MDLoma Linda, CA 923541528709623
  14. Hilary OngLos Angeles, CA 900271053768093
  15. William Ong, MDLivermore, CA 945511508944604
  16. Yvonne Ong, MDDaly City, CA 940151558449108
  17. Mary Ong-Veloso, MDPanorama City, CA 914021144378191
  18. Kristine Camille Ongaigui, MDFresno, CA 937211124589437
  19. Ejike Onyeador, MDLong Beach, CA 908131497821516
  20. Heyman OoSan Francisco, CA 941431285052514
  21. Kinsa Thi Oo, MDWest Hollywood, CA 900481174104236
  22. Michael Oom, MDLos Angeles, CA 900331801259171
  23. Lori Openshaw, MDIrvine, CA 926181952388787
  24. Juliana Opong, MDBakersfield, CA 933091053408633
  25. Dolores Oquendo, MDBellflower, CA 907061770631764
  26. Judy Oranika, MDBeverly Hills, CA 902111972064350
  27. Edgar Orate, M.D.San Jose, CA 951121801826409
  28. Theadora Ordog, MDTustin, CA 927821508515164
  29. Etan Orgel, MD, MSLos Angeles, CA 900271750548632
  30. Jessica Orkin, M.D.Woodland Hills, CA 913671790042471
  31. Melissa OrkinWoodland Hills, CA 913671053573618
  32. Eduardo OrnedoEl Monte, CA 917311891807400
  33. Kara Ornstein, MDGreenbrae, CA 949041023181203
  34. Amy Oro, MDPalo Alto, CA 943041821131046
  35. Lauren Orona, M.D.Loma Linda, CA 923541245642990
  36. Javier Orosco, MDOxnard, CA 930301104908573
  37. Jennifer Orosco, M.D.Costa Mesa, CA 926271578823217
  38. Jessely Orpilla, M.D.West Hills, CA 913071205932951
  39. Alexis Ortega, NPEl Centro, CA 922431972221984
  40. Daniel Matthew Ortega, DOLos Angeles, CA 900271497240642
  41. Hector Ortega, MDLos Angeles, CA 900271275932170
  42. Lucio Ortega Martinez, MDSan Diego, CA 921031306475603
  43. Robert Orth, M.D.Tulare, CA 932741205937620
  44. Blanca Ortiz, M.D.Menifee, CA 925841417193996
  45. Jorge Ortiz-Colon, MDPalo Alto, CA 943041538788427
  46. Maria Ortiz-Tweed, M.D.Truckee, CA 961611104838614
  47. Victor Ortuno, M.DNorco, CA 928601932296738
  48. Kwabena Osei, MD,MPHFontana, CA 923361275732372
  49. Alan Osher, M.D.West Hills, CA 913071477998300
  50. Oluwadamilola Oshinuga, MDOakland, CA 946091225695463

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.