NPPES file of Aug 9, 2026

Student in an Organized Health Care Education/Training Program in California

40,652 NPPES records list student in an organized health care education/training program with a practice address in California, 104 per 100,000 residents, the 8th 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 128 of 814.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 390200000X · 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, 6,770

  1. Los Angeles6,770
  2. San Francisco3,035
  3. San Diego2,098
  4. Sacramento2,087
  5. Oakland1,419

Student in an Organized Health Care Education/Training Program records in California

  1. Lucy Chen, DOSignal Hill, CA 907551861196875
  2. Lucy Chen, MDBaldwin Park, CA 917061770156929
  3. Luxi Chen, MD, PHDWest Hollywood, CA 900481609455344
  4. Lynn ChenSanta Monica, CA 904041760232540
  5. Maria ChenSan Francisco, CA 941431396502696
  6. Marianne ChenLos Angeles, CA 900241548695406
  7. Matthew ChenLos Angeles, CA 900891649071820
  8. Matthew Chen, DORancho Mirage, CA 922701467256495
  9. Mayting ChenPomona, CA 917661568213296
  10. Michael ChenLos Angeles, CA 900271215797865
  11. Michael ChenPomona, CA 917661689464232
  12. Michael Chen, MDRedwood City, CA 940631588452403
  13. Michelle Chen, MDLos Angeles, CA 900891538929807
  14. Michelle Chen, MDLos Angeles, CA 900951710739339
  15. Millennie Chen, MDMoreno Valley, CA 925551366369563
  16. Min-Hsuan ChenSan Diego, CA 921051821888553
  17. Miyue ChenSan Bernardino, CA 924081285217745
  18. Monica ChenDaly City, CA 940151619609898
  19. Nancy ChenLong Beach, CA 908221285951517
  20. Natalie Chen, MDOrange, CA 928681245757442
  21. Natalie Chen, MD MPHILPalo Alto, CA 943041083553895
  22. Nellie Chen, MDSacramento, CA 958171538962352
  23. Nicole ChenOakland, CA 946071750204905
  24. Nuo ChenLos Angeles, CA 900171972480093
  25. Oliver ChenSan Diego, CA 921051134088685
  26. Pei-Chang Chen, MDOakland, CA 946111992934632
  27. Phillip Chen, MDLos Angeles, CA 900951629605209
  28. Phoebe ChenSan Francisco, CA 941431992590434
  29. Ping-Yu ChenSan Rafael, CA 949011780461277
  30. Qiaoling ChenClovis, CA 936191861233645
  31. Qiudong Chen, MDWest Hollywood, CA 900481477048866
  32. Rebecca ChenPalo Alto, CA 943041487340824
  33. Renee ChenBerkeley, CA 947041164113122
  34. Ricky ChenLoma Linda, CA 923541205688892
  35. Ru ChenSan Mateo, CA 944011588958672
  36. Runze ChenSan Francisco, CA 941211568206456
  37. Ryan Chen, MDBeverly Hills, CA 902111124720925
  38. Sabrina ChenSan Francisco, CA 941431346943826
  39. Saisai ChenSan Francisco, CA 941431770343220
  40. Sally ChenLoma Linda, CA 923541700634615
  41. Sally Chen, MDSanta Clara, CA 950511427636844
  42. Samantha Chen, MDLos Angeles, CA 900271538782453
  43. Samantha ChenMoreno Valley, CA 925551932955168
  44. Samuel ChenSan Francisco, CA 941431578401071
  45. Sara ChenSan Diego, CA 921231013801539
  46. Sarah ChenSacramento, CA 958171730698390
  47. Sean ChenPasadena, CA 911011578307799
  48. Shi-Yun ChenRosemead, CA 917701346619186
  49. Shitao ChenRosemead, CA 917701033562996
  50. Sonia Chen, M.D.Oakland, CA 946111487946794

Source: CMS NPPES, primary taxonomy 390200000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 8 of 51 per resident

  1. Vermont110
  2. West Virginia108
  3. Ohio106
  4. California104
  5. Pennsylvania99
  6. Alabama91
  7. 50 states and D.C.81

Source: CMS NPPES, primary taxonomy 390200000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

16.3% of these records appear in a Medicare file, against 23.8% 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. California16.3%
  2. United States23.8%

Student in an Organized Health Care Education/Training Program records in California, measured

  • In a Medicare file6,617 of 40,652 · 16.3% here, 23.8% nationally
  • In the CMS Doctors and Clinicians file2,410 · 5.9% here, 3.6% nationally
  • Not updated in five years or more10,594 · 26.1% here, 20.3% nationally
  • Median graduation year2017 · the 2,409 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 390200000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

40,652 NPPES records list student in an organized health care education/training program (390200000X) as their primary taxonomy with a practice address in California: 104 per 100,000 residents against 81 nationally (50 states and D.C.). Los Angeles has 6,770 of them (17%).

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 York37,241
  2. Texas17,605
  3. Florida14,805
  4. Pennsylvania12,792

States with a similar rate per 100,000

  1. Ohio105.9
  2. West Virginia108.0
  3. Puerto Rico98.8
  4. Vermont110.3

The largest states

  1. New York37,241
  2. Texas17,605
  3. Florida14,805
  4. Pennsylvania12,792
  5. Ohio12,484

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.