NPPES file of Aug 9, 2026

Nephrology Physician in California

1,468 NPPES records list nephrology physician with a practice address in California, 3.8 per 100,000 residents, the 22nd highest rate of 51. Los Angeles and San Diego have the most; each record links to the provider's NPI and the California license search. Page 3 of 30.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RN0300X · 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, 151

  1. Los Angeles151
  2. San Diego75
  3. San Francisco70
  4. Sacramento57
  5. Stanford39

Nephrology Physician records in California

  1. Richard Barager, MDOceanside, CA 920561508864448
  2. Joel Baranski, M.D.San Diego, CA 921031548265234
  3. Shrinath Barathan, M.D.Los Angeles, CA 900481710912068
  4. Mark Barats, M.D.West Hollywood, CA 900461720134695
  5. Lilly Barba, M.D.Torrance, CA 905021407835978
  6. Edward Barnes, M.D.Pomona, CA 917661689664484
  7. John Baron, D.O.Travis Afb, CA 945351861471591
  8. Sandra Barrow, M.D.Santa Rosa, CA 954071437380987
  9. Yasser Barsoum, MDVisalia, CA 932771467618363
  10. Bruce Bartlow, M.D.Redding, CA 960031316956865
  11. Cyril Barton, MDOrange, CA 928681588744668
  12. Muhammad Bashir, MDChico, CA 959261720081342
  13. Jean Claude Bassila, M.D.Santa Rosa, CA 954051487817854
  14. Rodolfo Batarse, M.D.Rancho Mirage, CA 922701417914193
  15. Tomasz Beben, M.D.San Diego, CA 921031689839441
  16. Nama Beck, M.D.Santa Ana, CA 927051740245281
  17. Natalie Beck, MDSacramento, CA 958171881082519
  18. Clyde Beck, Jr., MDLa Jolla, CA 920371457797169
  19. Nicholas Bednarski, M.D.Oxnard, CA 930361457425860
  20. Luis Bedoya, M.D.Chula Vista, CA 919101922119445
  21. Terry Behrend, M.D.San Diego, CA 921151790780484
  22. Diogo Belo, M.D.Chula Vista, CA 919101326043027
  23. Ramin Berenji, M.D.El Centro, CA 922431063497691
  24. Mario Bernaba, MDHayward, CA 945451205499506
  25. Michael BernabaOakland, CA 946111568952356
  26. Joshua Bernstein, M.D.San Francisco, CA 941151457317729
  27. Behnoud Beroukhim, M.D.Los Angeles, CA 900481639477136
  28. John Bestoso, M.D.San Diego, CA 921031295721884
  29. Sarbani Bhaduri, M.D.Glendale, CA 912061174716765
  30. Neelam Bhalla, M.D.Hayward, CA 945451639118052
  31. Vivek Bhalla, MDStanford, CA 943051730118738
  32. Rajeshkumar Bhalodia, M.D.Anaheim, CA 928061477756823
  33. Nitin Bhasin, M.D.San Dimas, CA 917731669790838
  34. Adarsh Bhat, M.D.Roseville, CA 956611861443228
  35. Shivarama Bhat, M.D.Merced, CA 953401962564278
  36. Serena Bhela, M.D.Napa, CA 945581275873812
  37. Heeten Bhoot, D.O.Norco, CA 928601740731413
  38. Jasjot Bhullar, M.D.Loma Linda, CA 923541366602229
  39. William Bichai, M.D.Bakersfield, CA 933141548349004
  40. Maya Bidichandani-Kaura, MDDana Point, CA 926291992803167
  41. Michael Bien, M.D.San Dimas, CA 917731689680654
  42. Margaret BischelSanta Barbara, CA 931081538162888
  43. Solomon Bitew, MDLos Angeles, CA 900341619036217
  44. Harlan Bixby, M.D.Arcadia, CA 910071710261227
  45. Patricia Blakely, M.D.Redlands, CA 923731972617413
  46. Donald Block, MDBerkeley, CA 947051205933934
  47. David Bloom, M.D.Torrance, CA 905051356344683
  48. Richard Bloom, MDPebble Beach, CA 939531003189010
  49. Michael Blumenkrantz, M.D.Los Angeles, CA 900671619984234
  50. Mark Boiskin, M.D.La Jolla, CA 920371437154143

Source: CMS NPPES, primary taxonomy 207RN0300X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 22 of 51 per resident

  1. Texas3.8
  2. Virginia3.8
  3. Georgia3.8
  4. California3.8
  5. South Carolina3.8
  6. Michigan3.7
  7. 50 states and D.C.4.0

Source: CMS NPPES, primary taxonomy 207RN0300X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

88.2% of these records appear in a Medicare file, against 85.8% 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. California88.2%
  2. United States85.8%

Nephrology Physician records in California, measured

  • In a Medicare file1,295 of 1,468 · 88.2% here, 85.8% nationally
  • In the CMS Doctors and Clinicians file1,128 · 76.8% here, 76.0% nationally
  • Not updated in five years or more909 · 61.9% here, 54.9% nationally
  • Median graduation year2001 · the 1,128 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RN0300X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,468 NPPES records list nephrology physician (207RN0300X) as their primary taxonomy with a practice address in California: 3.8 per 100,000 residents against 4 nationally (50 states and D.C.). Los Angeles has 151 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. Texas1,159
  2. New York1,049
  3. Florida840
  4. Pennsylvania651

States with a similar rate per 100,000

  1. South Carolina3.8
  2. Georgia3.8
  3. Virginia3.8
  4. Michigan3.7

The largest states

  1. Texas1,159
  2. New York1,049
  3. Florida840
  4. Pennsylvania651
  5. Illinois572

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.