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 16 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. Charles Lu, MDFontana, CA 923351457409435
  2. Deborah Lu, MDHacienda Heights, CA 917451992264709
  3. Lawrence Lu, M.D.San Francisco, CA 941151114948650
  4. June Lugovoy, MDSan Jose, CA 951281508822248
  5. Fred Lui, M.D.San Francisco, CA 941331265461644
  6. Stephen Lui, M.D.Lynwood, CA 902621891770384
  7. Erik Lum, MDLos Angeles, CA 900951952549180
  8. Guy Lund, M.D.San Diego, CA 921231700859279
  9. Peter Lunny, M.D.Fremont, CA 945381689621765
  10. Jack Luo, MDFairfield, CA 945341851920854
  11. Jiann-Gang Luo, MDSan Jose, CA 951281043403066
  12. Ying Hui Luu, M.D.Santa Monica, CA 904041922486893
  13. May Lwin, MDLos Angeles, CA 900331023417797
  14. Cuong Ly, M.D.Laguna Hills, CA 926531306883053
  15. Charles Lynch, MDSan Francisco, CA 941151972684348
  16. Harvey Lyons, M.D.Oxnard, CA 930331558318881
  17. Fharak Maa Chip, M.D.National City, CA 919501245518414
  18. Essam Maasarani, M.D.Long Beach, CA 908061366448136
  19. Patrick Macapinlac, MDSan Diego, CA 921201619025608
  20. Niti MadanSacramento, CA 958171376655068
  21. Mallareddy Maddula, M.D.Stockton, CA 952101487762647
  22. Nora Maddy, MDSan Diego, CA 921341912361528
  23. Hosameldin Madkour, M.D.Victorville, CA 923951306881099
  24. Joseph MahalliLancaster, CA 935341023676376
  25. Ajit Mahapatra, MDSanta Clara, CA 950511699853275
  26. Terry Maher, MDBerkeley, CA 947051972600229
  27. Amrita Mahesh, DO, MSCSacramento, CA 958171518462621
  28. Robert MairPalo Alto, CA 943041174899249
  29. Jason Mak, MDFontana, CA 923351851450456
  30. Dwight Makoff, M.D.,Los Angeles, CA 900481144291584
  31. Magdy Maksy, M.DVisalia, CA 932921144334145
  32. Ramya Malchira, MD.Santa Clarita, CA 913551275810921
  33. Rakesh Malhotra, M.D., M.P.H.San Diego, CA 921031326346818
  34. Fatima Malik, M.DWest Hollywood, CA 900481447497219
  35. Anna Malkina, M.D.San Francisco, CA 941431851626949
  36. Dominique Mall, MD.Mission Hills, CA 913451821043423
  37. Abdalla Mallouk, MDBaldwin Park, CA 917061558375790
  38. J. David Malone, MDSan Francisco, CA 941091952404253
  39. Rendell Manalo, D.O.Lancaster, CA 935341265610950
  40. Ramesh Manchanda, MDLos Angeles, CA 900331972696466
  41. Raminder Mand, M.D.Turlock, CA 953821609032358
  42. Gaytri Manek, MDFountain Valley, CA 927081124298237
  43. Kimdeep Mangat, MDBaldwin Park, CA 917061245301209
  44. Nagarathna Manjappa, MDNapa, CA 945581710093349
  45. Veena Manjunath, M.D.Berkeley, CA 947051255599270
  46. Hadi Mansoury, M.D.Laguna Hills, CA 926531922175413
  47. Yvonne Mao, MDBurbank, CA 915021114916434
  48. Hashim Mapara, MDOxnard, CA 930361306074927
  49. Bruce Markham, MDWoodland Hills, CA 913671154479095
  50. Ilian Marquez, M.D.Pasadena, CA 911051710019906

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.